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Altadena is an unincorporated CDP in Los Angeles County governed by LA County Code Title 22 §22.140.640 (Accessory Dwelling Units and Junior Accessory Dwelling Units), most recently amended April 2024. Single-family lots may add one ADU plus one JADU; multifamily lots may add up to two detached new-construction ADUs plus conversion ADUs in non-livable existing space.
Garage conversions to ADUs in unincorporated Altadena are governed by LA County Code Title 22 §22.140.640 and California Government Code §65852.2. No replacement parking is required when an existing garage is converted, and existing setbacks are grandfathered. Properties in Very High Fire Hazard Severity Zones also trigger Chapter 7A wildland-urban interface standards.
Carports in Altadena are accessory structures regulated under Altadena CSD 22.306.070 and LA County Code 22.110.040. They count toward the lot-coverage formula and the 2-space minimum parking requirement.
Exterior noise in Altadena's residential zones is capped at 50 dBA daytime / 45 dBA nighttime (single-family); 55/50 dBA (multi-family); 60/55 dBA commercial; 70 dBA all hours industrial.
Altadena is unincorporated, so LA County Title 12 Chapter 12.08 (Noise Control) applies. Nighttime exterior limits run 10:00 p.m. to 7:00 a.m. with stricter dB caps; daytime runs 7:00 a.m. to 10:00 p.m.
LA County does not have a county-wide gas leaf-blower ban, but operation is subject to the Ch. 12.08 dB limits and construction-hours rules (7 a.m.–8 p.m. weekdays).
LA County Code Section 12.08.440 limits construction noise in residential areas to 7:00 a.m.–8:00 p.m. weekdays and 8:00 a.m.–8:00 p.m. on Saturdays. No construction is allowed on Sundays or county holidays.
LA County Code Section 10.36.010 prohibits owning or keeping any animal that habitually disturbs the peace by barking, howling, or other noise. Enforced by LA County Animal Care & Control.
LA County Code Chapter 12.08 restricts amplified sound and outdoor music in unincorporated areas to the same exterior noise standards by zone. Loudspeakers and amplified devices are specifically regulated under Section 12.08.450.
Amplified music and sound devices in unincorporated LA County are regulated under Chapter 12.08 (Noise Control). Residential areas: 45 dB nighttime (10 PM-7 AM), 50 dB daytime. Sound amplifying equipment in or within 500 ft of residential zones is restricted for commercial purposes.
California sets statewide airport noise limits under Title 21 CCR, with the state preempting most local aviation noise control because federal FAA authority dominates aircraft operations in flight.
LA County Code Section 22.112.080 allows RV/boat storage in residential zones only in side or rear yards behind the required front setback, screened from view. Street RV parking is limited under Title 15.
LA County Code Chapter 15.36 (Abandoned Vehicle Abatement) authorizes the county to remove inoperative or abandoned vehicles from private or public property after notice. Funded by the AVA fee on vehicle registration.
LA County Title 15 (Vehicles and Traffic) governs Altadena streets. Standard rules: 72-hour limit on parking the same vehicle in one spot, no parking against curb direction, and posted street-sweeping zones enforced by LA County Sheriff & Public Works.
Altadena is an unincorporated community in Los Angeles County, so EV charger installations are permitted by LA County Public Works Building & Safety Division at the East LA District Office. New one- and two-unit single-family homes must be EV-Capable with conduit and panel space for a Level 2 charger under the 2022 California Building Standards Code (CBSC) and CalGreen §4.106.4. EVSE installations rated under 400 amps do not require an electrical plan check and may be permitted over-the-counter or through EPIC-LA, the County's online permit portal.
Altadena CSD requires 2 on-site parking spaces for 1–4 bedroom homes, 3 for 5–6 bedrooms, and 4+ for 7+ bedrooms. Where 3+ spaces are required, the extras may be uncovered and developed in tandem.
Only the LA County Department of Public Works may paint or alter colored curbs on county-maintained streets in unincorporated areas. Title 17.04 and the California Vehicle Code define meanings: red no-stopping, yellow loading, white passenger, green time-limited, blue disabled.
On county-maintained streets in unincorporated Los Angeles County, yellow curbs mark commercial loading zones reserved for vehicles actively loading goods, typically 7am to 6pm Monday through Saturday under Title 17.04.520. Passenger cars may not park during posted hours.
LA County Code Title 16.04 lets unincorporated neighborhoods petition for Preferential Parking Districts that reserve curb space for residents holding annual permits. Non-permit vehicles face citations during posted hours, typically two-hour limits except by permit.
LA County Code Title 17.04.660 restricts oversized vehicles including RVs, trailers, and large trucks over 22 feet long or 7 feet tall from parking on county-maintained streets in unincorporated areas between 2am and 6am without a permit.
California Civil Code §4745 and §1947.6 give condo owners and tenants the right to install electric vehicle charging stations in their assigned parking spaces. LA County building code Title 26 aligns with statewide pre-wiring rules for new multi-family construction.
LA County Code Section 15.64.052 prohibits parking commercial vehicles with a GVWR of 10,000 pounds or more on any highway or alley in residential districts at any time. This applies to all unincorporated residential and agricultural zones.
Overnight parking in unincorporated LA County is subject to CA Vehicle Code 22651 (72-hour limit). Overnight vehicle habitation is restricted in many communities. LA County Sheriff enforces parking regulations in unincorporated areas. Posted signs may impose additional restrictions.
Altadena STRs must register annually with the LA County Treasurer & Tax Collector under LA County Code Chapter 7.96 (Title 7, Division 3). Registration is limited to a Host's Primary Residence — ADUs and vacation rentals are ineligible.
Un-hosted short-term rentals in Altadena are capped at 90 nights per calendar year. Hosted stays (host on-site) have no annual cap, but every stay is limited to 30 consecutive days or less.
Hosts must register annually with LA County TTC, pay $914, and submit a sworn affidavit affirming primary-residence status, a local responsible contact reachable 24/7, and consent of the property owner.
Guest occupancy is limited to two persons per bedroom plus two additional, with an absolute maximum of 12 guests per booking per LA County Code Section 7.96.060.K.
LA County does not require a specific liability insurance amount, but Hosts must provide working smoke detectors, CO detectors, flashlights, and tagged fire extinguishers (7.96.070.F-G).
STR hosts in Altadena must collect and remit a 12% Transient Occupancy Tax (TOT) under LA County Code Chapter 4.72, plus pay the $914 annual registration fee under Section 7.96.040.
STR hosts must make on-site parking required under Sections 22.112.060 and 22.112.070 available to guests, and must post parking capacity and rules inside the unit (Section 7.96.070.H.2).
STRs may not adversely affect neighborhood character via noise, vibration, glare, odors, or other nuisance under LA County Code Section 7.96.060.L; underlying noise limits in Ch. 12.08 still apply.
In unincorporated Los Angeles County, the short-term rental host need not be physically onsite, but the property must be the host's primary residence and unhosted stays are capped at 30 nights per calendar year under Title 22.140.290.
Unincorporated Los Angeles County limits short-term rentals to the host's primary residence under Title 22.140.290, defined as the dwelling occupied by the host for at least six months of the calendar year.
Unlike Los Angeles City, unincorporated Los Angeles County offers no extended home-share permit. Title 22.140.290 caps unhosted rentals at 30 nights per year with no path to lift that limit while keeping the host offsite.
Title 22.140.290(I) establishes a three-strikes rule: any host receiving three citations within a 12-month period for short-term rental violations in unincorporated Los Angeles County loses the permit and is barred from reapplying for two years.
Hosting platforms operating in unincorporated Los Angeles County must display the County permit number on every listing, verify validity, and remove unpermitted listings on County notice under Title 22.140.290 and California SB-60 / AB-1731 platform rules.
All fireworks — including 'Safe and Sane' — are illegal in unincorporated LA County including Altadena under LA County Fire Code Title 32 Section 5601.3.
Altadena is largely in a Very High Fire Hazard Severity Zone. LA County Fire requires year-round brush clearance within 200 feet of any structure and 10 feet of combustible fences and roadways.
Altadena sits in or adjacent to Very High Fire Hazard Severity Zones (Eaton Canyon, foothills). LA County Fire Code Title 32 restricts open flames and recreational fires; STRs in VHFHSZ must post a no-flame notice (LA County Code 7.96.060.O).
Most of Altadena sits in CalFire-mapped Very High and High Fire Hazard Severity Zones — the January 2025 Eaton Fire destroyed thousands of structures here. Properties in these zones face heightened defensible-space, ember-resistant construction, and disclosure requirements.
Open outdoor burning of vegetation is generally prohibited in unincorporated LA County. SCAQMD Rule 444 governs agricultural and rangeland burning; permits required from LA County Fire.
LA County Fire Code Title 32 §6101 governs propane storage. Residential cylinders aggregating 10 gallons or less are exempt; aggregate quantities above 25 gallons require a LACoFD permit and IFC §6104 setbacks from buildings, property lines, and ignition sources.
Pool barriers in Altadena must be at least 60 inches tall, with no more than 2 inches gap below, and gates self-closing and self-latching with latch at least 60 inches above ground (LA County Building Code Manual 3109.2).
Altadena CSD caps front-yard fences at 42 inches within 10 feet of the right-of-way (with open/non-view-obscuring design ≥80% transparency required for taller fences), and 6 feet beyond 10 feet from the right-of-way.
New/replacement fences in Altadena front yards may not be composed of barbed wire, concertina wire, razor wire, or broken glass. Chain link over 42 inches must be covered with live plant material.
Fences under 6 ft do not require a building permit in unincorporated LA County. Fences over 6 ft require permits from Building & Safety. Department of Regional Planning approval may be needed depending on fence location (front yard, corner lot). Block walls over 6 ft always require permits.
CA Good Neighbor Fence Act (Civil Code 841) applies in unincorporated LA County. Adjoining property owners share boundary fence costs equally. The spite fence doctrine (CC 841.4) applies to fences over 10 ft built to annoy neighbors. Hedges serving as fences are subject to the same height restrictions.
Retaining walls in unincorporated LA County under 4 ft from footing to top are exempt from building permits unless supporting a surcharge. Walls in required yards cannot exceed 6 ft. In coastal areas, retaining walls must be terraced and landscaped with native species before the rainy season (Oct 15-Apr 15).
Outdoor watering in Altadena (served by Lincoln Avenue Water Co., Las Flores Water Co., Rubio Cañon, and Kinneloa Irrigation District) is limited to 2 days per week assigned by address — typically Mon/Thu odd, Tue/Fri even — with 10-minute-per-zone caps.
In Altadena's Very High Fire Hazard Severity Zones, grass and weeds must be kept under 3 inches under LA County Fire Code Title 32 defensible-space rules.
Trimming protected oak trees (≥8 in DBH) requires an Oak Tree Permit if the work enters the protected zone or removes >25% of crown. Street trees in the public right-of-way are maintained by LA County Public Works.
LA County Fire's Brush Clearance program also functions as the weed-abatement ordinance — vacant and improved lots must keep weeds and grasses cut to under 3 inches in fire-hazard areas. Annual notices issued each spring.
Oak trees (genus Quercus) with a trunk circumference of 25 inches or more (8-inch diameter at 4.5 ft above grade) are protected — removal, damage, or encroachment into the protected zone requires an Oak Tree Permit under LA County Code Chapter 22.174.
LA County Code Title 12.84 and California SB-1383 require all residents and businesses to separate organic waste from trash, either through curbside green-bin service or backyard composting. LA County Public Works runs the Smart Gardening Program teaching home composting techniques.
Artificial turf is permitted in unincorporated LA County. CA Gov Code 65595 prohibits banning drought-tolerant landscaping. MWELO encourages water-efficient alternatives. Some Community Standards Districts may have specific landscape requirements.
Native and drought-tolerant landscaping is encouraged in unincorporated LA County per MWELO and state water conservation mandates. CA Gov Code 65595 prohibits banning native plant gardens. Coastal areas specifically require native species for erosion control landscaping.
Rainwater harvesting is legal and actively encouraged in unincorporated LA County. LADWP offers rebates for rain barrels. The LACFCD promotes distributed stormwater capture projects including rain gardens and rain barrels. No permits required for residential collection systems.
Altadena CSD allows up to 2 home-based occupations per property with no more than 1 client visit or 1 client vehicle per hour, and a maximum of 2 non-resident employees per property (Section 22.306.070.A.7).
Home occupations in unincorporated LA County must not generate customer traffic that changes the residential character of the area. Title 22 limits external evidence of commercial activity. Excessive deliveries and customer parking can trigger code enforcement by LA County DRP.
Home occupations in unincorporated LA County are regulated under Title 22 zoning. A county business license is required. The business must be incidental to residential use with no exterior evidence of commercial activity. Zoning determines which home-based activities may require a conditional use permit.
Home-based businesses in unincorporated LA County cannot display exterior business signage in residential zones under Title 22. The business must be invisible from outside. Sign regulations are enforced by LA County DRP to maintain residential neighborhood character.
Licensed family daycare homes in unincorporated LA County are protected by CA HSC 1597.40. Small family daycare (up to 8 children) requires no local use permit. Large family daycare (up to 14 children) requires state licensing. The county cannot ban licensed daycare in residential zones.
Cottage food operations in unincorporated LA County are governed by California's Homemade Food Act (AB 1616/AB 626). Class A operators sell direct to consumers. Class B operators (indirect sales, farmers markets) need LA County DPH registration. Annual sales caps apply.
LA County allows backyard chickens in R-1 zones in unincorporated areas (including Altadena) subject to coop setbacks under LA County Code Title 10 and Title 22. Roosters and large flocks may require additional permits or be restricted.
LA County Code Section 10.32.010 prohibits dogs running at large in any public place or private property other than the owner's, unless restrained by a chain or leash no longer than 6 feet.
LA County Title 10.20.355 requires microchipping for all dogs and cats released from shelters and, by recent expansion, for any dog or cat receiving a county license. DACC scans every impounded animal for owner reunification.
LA County Title 10.92 prohibits retail pet stores in unincorporated areas from selling dogs or cats unless sourced from shelters or registered nonprofit rescues. The 2017 county rule preceded California AB-485, which now applies statewide.
LA County Title 10.20.220 caps three dogs and five cats at unincorporated single-family lots without a kennel permit. DACC and the Sheriff investigate hoarding cases as cruelty under California Penal Code §597, with seizure and prosecution.
LA County Title 10.32 covers cat care and Title 10.20.060 mandates rabies vaccination for cats over four months. DACC supports trap-neuter-return for managed feral colonies; outdoor cats remain owners' responsibility for damage and wildlife harm.
LA County Title 10.20.350 requires all dogs and cats over four months in unincorporated areas to be spayed or neutered, with narrow exceptions for licensed breeders, show animals, and medical waivers documented by a veterinarian.
DACC's 2017 Coyote Management Plan emphasizes coexistence, hazing, and attractant removal over lethal control. LACO Title 10.84.010 bans intentional feeding of coyotes and other wildlife in unincorporated areas, with citations and escalating fines for violations.
LA County Title 10.20.220 caps unincorporated single-family residences at three dogs over four months and five cats without a kennel or cattery permit. Higher counts require DACC permitting and zoning compatibility under Title 22.
Pet groomers in unincorporated LA County must hold a Department of Public Health animal-facility permit under LACO Title 11 and a Title 7.62 business license. Mobile groomers face the same rules plus vehicle and wastewater requirements.
LA County Title 22.140.220 lets veterinary clinics operate by right in commercial zones C-1, C-2, and C-3, with conditions covering noise, kenneling overnight, and outdoor runs. Heavier animal hospitals may require a conditional use permit.
California Fish & Game Code §3503 to §3516 protect native birds, nests, and eggs, including raptors and migratory species. LA County Title 10.84 layers a wildlife harm and feeding ban for unincorporated areas, with DACC and CDFW enforcement.
LA County Animal Control (Title 10) uses behavior-based dangerous dog determinations rather than breed-specific bans. California prohibits breed-specific legislation except for spay/neuter programs. Potentially dangerous and vicious dog designations follow specific statutory procedures.
LA County Code Title 10, Section 10.28.060 requires a license to keep wild animals in unincorporated areas. Many exotic species are prohibited entirely. California Fish and Game Code further restricts ownership of non-native wildlife.
LA County Code Title 10, Division 3, Chapter 10.76 regulates beekeeping in unincorporated areas. Apiaries must be registered with the LA County Agricultural Commissioner. Hive setback requirements and colony limits apply based on lot size.
Feeding wildlife in unincorporated LA County is discouraged and may violate nuisance provisions. CDFW regulations prohibit feeding certain species. The county's large unincorporated areas include wildlife corridors where feeding attracts coyotes, bears, and mountain lions near communities like Altadena and Topanga.
Every new or remodeled residential pool in Altadena requires a 60-inch barrier with self-closing/self-latching gates plus at least 2 additional safety features under the California Pool Safety Act.
All swimming pools, spas, and hot tubs in Altadena require a building permit from LA County Building & Safety under Title 26 (Building Code) plus a plumbing permit and electrical permit for equipment.
Hot tubs and spas in unincorporated LA County require building permits for permanent installations from LA County Building & Safety. GFCI protection mandatory. Safety covers required when not in use. May require barrier depending on design and accessibility.
Pool safety in unincorporated LA County is governed by CA HSC 115920-115929 and CA Title 24. Barriers, drain covers, and at least one additional safety feature are mandatory. Vacant properties must drain pools. LA County Building & Safety enforces all pool safety requirements.
Above-ground pools in unincorporated LA County holding 3,000+ gallons require a building permit from LA County Building & Safety. All barrier requirements (60-inch fencing, self-closing gates) apply equally. Smaller inflatable pools may be exempt from permits but not safety requirements.
Door-to-door commercial solicitors in Altadena must obtain a business license under LA County Code Title 7 and respect 'No Soliciting' signs. Non-commercial canvassing (political, religious) is protected speech.
Residents in unincorporated LA County can post 'No Soliciting' signs. Solicitors ignoring posted signs may violate county ordinances. California Penal Code 602 addresses trespass. LA County Sheriff enforces in unincorporated communities.
All commercial cannabis activity — including retail dispensaries, cultivation, manufacturing, testing, and distribution — is banned in unincorporated LA County (including Altadena) under Ordinance 2017-0025.
California Proposition 64 (Health & Safety Code 11362.1) allows adults 21+ to cultivate up to 6 cannabis plants for personal use. LA County Ordinance 2017-0025 limits cultivation to indoor or secured outdoor areas not visible to the public.
Commercial cannabis activity has historically been prohibited in unincorporated LA County under Title 22.140.220, but Title 22 amendments adopted alongside the 2022 Equity Program will allow retail, cultivation, manufacturing, and distribution in select industrial zones (M-1, M-1.5, M-2) once licensing rolls out.
LA County's Cannabis Equity Program, run by the Department of Consumer and Business Affairs under Ordinance 2022-0023, gives priority licensing, fee waivers, and technical assistance to applicants harmed by past cannabis enforcement in unincorporated areas.
Under California MAUCRSA Business and Professions Code Section 26054 and LA County Code Title 22.140, commercial cannabis premises in unincorporated LA County must sit at least 600 feet from K-12 schools, daycare centers, and youth centers, measured property line to property line.
California Department of Cannabis Control regulations allow state-licensed retailers to deliver cannabis to any address in unincorporated LA County, even though the county has not yet issued local retailer licenses. Delivery vehicles, drivers, and manifests must follow state rules in CCR Title 4.
Adults 21 and older in unincorporated LA County may cultivate up to six living cannabis plants per private residence under California Proposition 64, with plants kept indoors or in a locked, screened outdoor enclosure not visible from a public place under Health and Safety Code Section 11362.1.
Altadena R-1 max height: 35 ft on lots ≥20,000 sf; 30 ft on lots <20,000 sf and flag lots. Maximum 2 stories above grade. No portion of any structure may exceed 23 ft if within 15 ft of any property line.
Altadena R-1 setbacks: front = smallest existing front yard on the same block (min 20 ft); rear = 35 ft (lots ≥20,000 sf) or 25 ft (lots <20,000 sf); side = 10% of avg lot width, min 5 ft interior / 10 ft reverse corner.
Altadena R-1 max Gross Structural Area (GSA) and lot coverage = (0.25 × net lot area) + 1,000 sq ft, never exceeding 9,000 sq ft total (Altadena CSD 22.306.070.A.4).
Removing or significantly damaging a native oak with an 8-inch trunk diameter (25-inch circumference) at 4.5 ft above grade requires an Oak Tree Permit from LA County Planning under Section 22.174.040.
Oak trees ≥36 inches in diameter qualify as Heritage Oaks under LA County Code Chapter 22.174 and receive heightened review. Removal is rarely approved.
LA County Code Title 22.174 (formerly 22.56.2050) protects native oaks with eight inches or larger trunk diameter at breast height. An Oak Tree Permit from Regional Planning is required before pruning more than 25 percent or removing any protected oak.
LA County Public Works requires a no-fee permit before planting, removing, or pruning any tree in the parkway strip between sidewalk and curb. Approved species follow the LA County Street Tree Master Plan with separation from utilities and driveways.
The LA County Community Forest Management Plan and OurCounty Sustainability Plan target a 50 percent canopy increase in low-canopy unincorporated communities by 2045. DPW, Parks, and Public Health prioritize free plantings in Southeast LA and Antelope Valley equity zones.
The LA County Oak Tree Permit Ordinance encourages replanting and propagation of oak trees. When oak tree removal is approved, replacement planting conditions may be imposed. LA County Planning is updating the ordinance to further encourage planting new oak trees and redesigning projects to preserve existing trees.
Los Angeles County protects significant trees in unincorporated areas through its Oak Tree Ordinance (Title 22, Chapter 22.174) and related regulations. The ordinance requires permits for removal or relocation of oak trees and other protected species. Heritage trees receive enhanced protection. Mitigation including replacement planting is required when removal is approved.
Tenants in Altadena covered by the LA County RSTPO can be evicted only for an enumerated 'just cause' — non-payment, lease violation, nuisance, owner move-in, withdrawal from market (Ellis Act), or substantial remodel — with relocation assistance for no-fault terminations.
The LA County Rent Stabilization & Tenant Protections Ordinance (RSTPO) caps annual rent increases in covered Altadena multi-unit buildings (built before Feb 1, 1995) at 3% or 60% of CPI, whichever is lower (effective 2025).
Los Angeles County's Rent Stabilization and Tenant Protections Ordinance requires landlords in unincorporated areas to pay tiered relocation assistance to households evicted for no-fault reasons, with amounts adjusted annually by DCBA.
California Civil Code §1950.5, amended by AB-12 effective July 2024, caps residential security deposits at one month's rent statewide. Los Angeles County does not add a local cap; state law controls in both incorporated and unincorporated areas.
Cash-for-keys deals in unincorporated LA County are regulated under the RSTPO buyout provisions. Landlords must serve a written disclosure, allow a cooling-off rescission period, and file the executed agreement with the DCBA.
Under LA County's RSTPO, landlords in unincorporated areas may end a tenancy without tenant fault only for owner move-in, Ellis Act withdrawal, demolition or permanent removal, substantial remodel, or government order. Each path requires notice, filing, and relocation pay.
RSTPO landlords in unincorporated LA County may pass through approved capital improvement, utility, and registration costs only with DCBA approval. Capital improvements are split 50/50 with the tenant, and monthly add-ons are capped.
LA County Ordinance 2021-0040, codified at Title 8.59, prohibits landlords in unincorporated areas from harassing tenants through threats, coercion, intimidation, utility shutoffs, or false eviction filings. DCBA investigates and penalties run per violation.
California Government Code §12955 bans housing discrimination based on a tenant's lawful source of income, including Section 8 vouchers and other rental subsidies. LA County Title 8.42 mirrors and extends the protection in unincorporated areas via DCBA.
The Housing Authority of the County of Los Angeles (HACoLA) administers federal Section 8 Housing Choice Vouchers across LA County. Landlords accepting vouchers must pass HQS inspection and cannot refuse applicants based on voucher status.
Mandatory rental registration is required in unincorporated LA County under the RSO. Landlords must register all rental units and pay annual fees by September 30. Fully covered units: $90/unit, just-cause only: $30/unit. Up to 50% of fees for covered units may be passed to tenants.
Most of Altadena is in FEMA Flood Zone X (minimal hazard), but the area along Eaton Wash, the Arroyo Seco tributaries, and post-Eaton Fire burn-scar areas have heightened flood and debris-flow risk. LA County Code Ch. 22.142 (Floodplain Management) applies in mapped Special Flood Hazard Areas.
All grading and disturbed sites in Altadena must implement erosion controls under LA County Building Code Title 26 Appendix J and the County's MS4 permit. Rainy-season grading (Oct 15 – Apr 15) requires Best Management Practices approved by Public Works.
LA County operates under a regional MS4 permit issued by the LA Regional Water Quality Control Board. LA County Code Title 12 prohibits discharging non-stormwater (sediment, chemicals, paint, sewage, washwater) into storm drains.
Hillside grading exceeding 2,500 cubic yards cut + fill requires a Conditional Use Permit in Altadena (CSD 22.306.060.B.2.b). Grading during the Oct 15 – Apr 15 rainy season is subject to Public Works erosion-control requirements.
Properties in mapped Very High Fire Hazard Severity Zones must maintain 100 feet of defensible space under California PRC §4291 and LACo Fire Code Title 32 §4906, with annual LACoFD Forestry Division inspections in Malibu, Topanga, Altadena, and Antelope Valley foothills.
California Code of Regulations Title 13 §2485 caps heavy-duty diesel idling at five minutes statewide, enforced across LA County by CARB and SCAQMD Rule 1102. LA County's fleet idle-reduction policy adds matching limits for county-owned trucks and buses.
California AB-1346 bans the sale of new gas-powered leaf blowers and other small off-road engines under 25 horsepower starting 2024, applying countywide. LA County does not have a separate countywide blower ban, but several incorporated cities layer their own operating prohibitions.
Los Angeles County adopted its OurCounty Sustainability Plan in 2019 with binding climate targets, paired with a Climate Vulnerability Assessment guiding adaptation. The Chief Sustainability Office coordinates 159 actions across 12 goals targeting carbon neutrality by 2050 in unincorporated areas.
Los Angeles County's Environmentally Preferable Purchasing Policy at LA County Code Title 2.205 directs all departments to prioritize recycled-content, energy-efficient, and low-toxicity products. Internal Services manages a zero-emission fleet replacement schedule for county-owned light-duty vehicles.
LA County Public Works runs cool pavement pilots in unincorporated communities like Pacoima-adjacent areas to lower surface temperatures during heat waves. The reflective coatings reduce roadway temperatures by up to 10 to 15 degrees Fahrenheit on summer afternoons.
LA County Code Title 31 Green Building Standards and Title 26 Building Code adopt CALGreen Title 24 Part 11 baseline requiring cool roofing on new construction and major reroofs in unincorporated areas. Reflective materials must meet minimum solar reflectance and thermal emittance ratings.
The OurCounty Sustainability Plan and Climate Vulnerability Assessment identify Heat Equity Zones, where LA County deploys cool roofs, cool pavement, tree canopy, and cooling-center activations when forecast highs exceed 95 degrees Fahrenheit for two or more days.
Los Angeles County enforces shoreline management regulations for its extensive coastline and waterways in unincorporated areas. Development within the coastal zone requires compliance with the California Coastal Act and the county's Local Coastal Program. Projects near beaches, harbors, and coastal bluffs are subject to stringent setback, access, and environmental review requirements administered by the Department of Regional Planning.
Several unincorporated LA County areas fall within the California Coastal Zone, including communities near Malibu and the Santa Monica Mountains. Coastal development permits from the California Coastal Commission may be required. LA County DRP administers local coastal programs for unincorporated coastal areas.
LA County Code Title 11 (Health and Safety) and the Nuisance Abatement provisions in Title 22 prohibit accumulating trash, junked vehicles, overgrown vegetation, or maintaining buildings in disrepair. Enforced by LA County Code Enforcement.
Trash, recycling, and green waste bins must be set out for collection on the designated pickup day and removed from the street within 24 hours after pickup. Service is by exclusive franchise haulers (Athens Services for most of Altadena).
Garage/yard sales in unincorporated LA County are regulated under County Ordinance 22.140.620. Only secondhand items, no new merchandise or food sales. Hours: 7 AM-6 PM. Maximum 2 signs on property. Property must be residential. Items must not encroach on public right-of-way.
Vacant lots in unincorporated LA County must be maintained free of trash, debris, and overgrown vegetation. Owners must secure properties against unauthorized entry. Fire hazard reduction is required year-round. The county may perform abatement and charge the property owner.
Most unincorporated LA County areas do not receive snow. Mountain communities (e.g., Wrightwood, Mt. Baldy area) may experience snowfall but there is no county snow removal ordinance for sidewalks. Property owners in mountain areas handle snow removal voluntarily.
LA County Code Title 30 (Residential Code) and Title 28 (Plumbing) require an automatic seismic gas shutoff valve on any new or substantially remodeled residence with natural gas service. Existing homes have no retrofit mandate.
LA County has no mandatory retrofit ordinance for non-ductile concrete buildings in unincorporated areas. LACoDPW maintains a voluntary inventory and offers ASCE 41-17 evaluation guidance, while LA City's mandatory program does not extend to county jurisdiction.
LA County Ordinance 2017-0061 added Title 26 Chapter 95 requiring seismic retrofit of soft-story wood-frame multi-unit buildings in unincorporated areas. Owners of pre-1978 buildings with five or more units over open parking must evaluate and retrofit on a phased schedule.
LA County has no mandatory retrofit ordinance for pre-Northridge welded steel moment-frame buildings. LACoDPW follows FEMA 351-355 evaluation guidance and accepts ASCE 41-17 voluntary upgrades through Title 26 permits, with no countywide deadline.
California SB-721 (apartments) and SB-326 (HOA condos) require periodic inspection of exterior elevated elements like balconies and walkways. LACoDPW enforces in unincorporated areas; first SB-721 inspections were due January 1, 2025, with nine-year cycles.
LA County addresses tilt-up concrete buildings through voluntary ASCE 41-17 evaluation rather than a mandatory retrofit ordinance. LACoDPW guidance focuses on wall-to-roof anchorage failures observed in 1971 Sylmar and 1994 Northridge earthquakes for pre-1976 structures.
Political signs on private property in Altadena are protected speech under the First Amendment (Reed v. Town of Gilbert, 2015). LA County Code Ch. 22.116 limits aggregate residential sign area but cannot impose content-based restrictions.
Title 22.140.430 of the LA County Code prohibits digital and electronic message-center billboards in all residential zones of unincorporated areas, allowing them in commercial and industrial zones only with a Conditional Use Permit and strict brightness, dwell-time, and spacing limits.
Title 22.140.430 of the LA County Code limits window signs in commercial buildings of unincorporated areas to 25 percent of the window's glass area, bans flashing or animated displays, and allows neon and LED only with proper electrical permits.
Off-site signs visible from interstate and primary highways in unincorporated Los Angeles County are governed by the California Outdoor Advertising Act under Business and Professions Code §5200 et seq., which preempts most local rules and requires a Caltrans permit.
Holiday decorations on private property in unincorporated LA County are generally permitted. Displays must not create safety hazards or obstruct visibility. No specific duration limits. Electrical displays must meet safety codes. Community Standards Districts may have additional standards.
Yard sale signs in unincorporated LA County are limited to 2 per sale under County Ordinance 22.140.620. Signs must be placed on the property where the sale occurs. Signs can go up no earlier than 1 day before and must be removed immediately after the sale.
LA County Code Section 22.140.470 (Outdoor Lighting) requires all outdoor lighting to be shielded so that direct illumination does not cross the property line, with hard caps in residential zones.
Title 22.140.385 of the LA County Code limits billboard illumination in unincorporated areas to 0.3 foot-candles above ambient measured at the property line, requires full cutoff fixtures aimed downward, and bans upward light spill into the night sky.
Title 22.140.385 of the LA County Code requires residential and commercial security lighting in unincorporated areas to use full cutoff shields aimed downward, capping property-line spill at 0.5 foot-candles and prohibiting glare onto neighboring dwellings or public ways.
Title 22.140.385 of the LA County Code exempts seasonal holiday lighting from outdoor-lighting brightness, shielding, and dark-sky rules between November 1 and January 15 each year, provided the displays do not create traffic hazards or unreasonable glare.
LA County's Rural Outdoor Lighting District (ROLD) ordinance, effective 2012, requires fully shielded outdoor lighting and prohibits light trespass in designated rural unincorporated areas. The ROLD covers mountain and rural communities. Mercury vapor lights and drop-down lenses are prohibited.
Drone airspace is federally regulated — 49 USC 44809 governs recreational use. Altadena is under JWA/Burbank/LAX/El Monte airspace controls. LA County parks prohibit drone takeoff/landing under Section 17.04.560.
Federal Aviation Administration rules under 14 CFR Part 107 and LAANC preempt local drone-proximity rules. Pilots must obtain controlled-airspace authorization within five miles of LAX, Burbank, Long Beach, Van Nuys, Hawthorne, Whiteman, Compton, El Monte, and Santa Monica airports.
Title 17.04.510 of the LA County Code prohibits launching, landing, or operating unmanned aircraft systems in County-operated parks, beaches, and recreation areas without an advance permit from the Department of Parks and Recreation. The rule covers over 180 facilities.
The Federal Aviation Administration issues Temporary Flight Restrictions over major LA County events including Rose Parade, Super Bowl, Oscars, large stadium games, and active wildfires. TFRs block all drones inside the cylinder and ground LA County operations under Title 17.04.510.
Commercial drone operations in unincorporated LA County follow FAA Part 107 requirements. Operators need a Remote Pilot Certificate. County business license may be required. No local ordinance adds restrictions beyond federal rules.
LA County Code Section 13.56 sets a curfew for minors under 18 from 10:00 p.m. to sunrise (school nights) and 12:00 midnight on weekends, in any public place in unincorporated areas.
County parks in Altadena (e.g., Loma Alta, Farnsworth, Charles White Park) close at sunset. LA County Code Section 17.04.530 makes it unlawful to be in a county park between sunset and sunrise without special permit.
LA County Code Chapter 7.86 limits garage sales in residential zones to no more than 2 per calendar year per address, with each sale lasting no more than 3 consecutive days. No permit is generally required for compliant sales.
Yard sales in unincorporated LA County are regulated under County Ordinance 22.140.620. Only secondhand household or personal items may be sold. Sale of new retail merchandise, food, or drinks is prohibited. Sales are limited in frequency to maintain residential character.
Yard sales in unincorporated LA County are permitted between 7:00 AM and 6:00 PM only per County Ordinance 22.140.620. No more than 2 signs allowed, placed on the property only. Signs must be put up no earlier than one day before and removed immediately after the sale.
Mobile food facilities operating in Altadena need a LA County Department of Public Health Mobile Food Facility permit, a LA County business license under Title 7, and must operate from approved commissaries.
Food truck vending in unincorporated LA County is subject to Title 22 zoning and health department regulations. California SB 946 protects sidewalk vendor rights. Trucks cannot block driveways, fire hydrants, or pedestrian access. Specific vending zones may be designated by DRP.
Commercial filming in Altadena's unincorporated areas requires a permit from FilmLA (the official film office contracted by LA County). Permits cover insurance, neighborhood notification, parking, and police/fire monitoring.
FilmLA splits still photography in LA County by use. Commercial product or fashion shoots need full permits ($795 plus location fees) under Title 22.140. Editorial, news, and journalistic still photography is generally exempt. Wedding and personal shoots fall in between.
FilmLA offers reduced student-permit fees in unincorporated LA County and contracted cities for students at accredited programs. Application is $25 plus $25 daily location fee. Faculty signature, school insurance, and academic-only use are required.
HOAs in Altadena are governed by California's Davis-Stirling Common Interest Development Act (Civ. Code 4000 et seq.). LA County does not enforce private CC&Rs — disputes go to the HOA's internal dispute resolution and ultimately Superior Court.
HOAs in LA County are governed by the Davis-Stirling Common Interest Development Act (Civil Code §4000–6150). Board meetings require advance notice, open sessions, and recorded minutes. Annual elections follow strict secret ballot procedures.
HOAs in LA County may require architectural approval for exterior modifications under their CC&Rs, but California law limits restrictions on solar panels, drought-tolerant landscaping, EV charging stations, and ADUs.
The Davis-Stirling Act regulates HOA assessments in LA County. Regular assessments may increase up to 20% annually without member vote. Special assessments exceeding 5% of budget require majority member approval.
The Davis-Stirling Act requires HOAs to offer internal dispute resolution (IDR) and alternative dispute resolution (ADR) before litigation. Members may request IDR meetings with the board. ADR mediation is required before most lawsuits.
California SB 1383 requires all residents and businesses in Altadena to separate organic waste (food scraps + yard trimmings) from trash. LA County Code Chapter 20.87 implements at the county level via Athens Services' three-bin program.
California SB-1383 and LA County Code Title 12.84 require all residents and businesses in unincorporated areas to separate organic waste including food scraps, food-soiled paper, and yard trimmings from trash. Haulers provide green carts and inspections. LA Sanitation enforces.
LA County Code Title 12.84 governs valet-trash and door-to-door collection programs at apartment and condo buildings in unincorporated areas. Buildings must use a franchise hauler, separate organics and recyclables, and meet diversion targets even when residents place bags outside doors.
LA County Public Works coordinates franchise haulers including Athens Services, Republic Services, and Waste Management to slide trash, recycling, and organics pickup one day later for the rest of the week after six observed holidays: New Year's, Memorial, Independence, Labor, Thanksgiving, Christmas.
Trash collection in unincorporated LA County is organized through Garbage Disposal Districts (GDDs). Property owners in GDDs are assessed a fee on their property tax bill. Residents outside GDDs are in Open Market Areas and must contract their own service. Multiple haulers serve different districts.
Bulky item disposal in unincorporated LA County varies by Garbage Disposal District. Most contract haulers provide bulky pickup service. Residents outside GDDs must arrange private service. Illegal dumping is enforced by county code enforcement with fines.
Trash bin placement in unincorporated LA County varies by Garbage Disposal District. Bins are placed curbside on collection day per the contract hauler's schedule. Bins must be retrieved promptly. SB 1383 requires three-stream separation (trash, recycling, organic waste).
Residential solar permits in Altadena are issued by LA County Building & Safety under SB 1222/AB 2188's streamlined permitting — typically 3 business-day approval, $400–$500 typical fee.
California Government Code §65850.5 and LA County Code Title 22.140.500 require expedited solar permitting for residential rooftop systems under 38.4 kilowatts. LA County uses SolarAPP+ instant online plan review through Building and Safety, typically issuing permits within three business days.
California Government Code §65852.27 lets farmers install ground-mounted solar serving on-site agricultural operations as ministerial accessory uses. LA County Code Title 22.140.500 adds setback and visibility standards for ag-overlay parcels in Antelope Valley and other unincorporated farming areas.
California SB-43 created the Green Tariff Shared Renewables program letting LA County renters and shaded-roof homeowners subscribe to community solar shares without on-site panels. LA County Waterworks pilots and Southern California Edison Green Rate provide enrollment paths countywide.
California Solar Rights Act (Civil Code 714) prohibits HOAs from effectively banning solar installations in unincorporated LA County. Any restriction increasing cost by more than $1,000 or decreasing efficiency by more than 10% is void. HOAs may impose reasonable aesthetic requirements only.
California Penal Code section 53071 preempts almost all local firearm regulation, so LA County cannot license or restrict gun ownership beyond state law. Narrow zoning and discharge rules survive in unincorporated areas under LACO Title 13.
California Penal Code section 25400 prohibits carrying a concealed firearm without a CCW. The LA County Sheriff issues permits to county residents under shall-issue rules following Bruen and SB-2, with sensitive-place limits applied countywide.
California Penal Code section 26350 bans open carry of unloaded handguns in incorporated areas, and section 26400 bans openly carried unloaded long guns. Most LA County cities are incorporated; unincorporated areas have narrower restrictions but loaded open carry is barred everywhere.
California Penal Code sections 25400 and 25610 require firearms transported by vehicle in LA County to be unloaded, with handguns inside a locked container or trunk. Long guns must be unloaded but may ride in the passenger compartment if encased.
LA County requires every vape and tobacco retailer in unincorporated areas to hold a Tobacco Retailer License under LACO Title 11.04.260 plus a state CDTFA license. Sales of flavored vape products are barred under Ord. 2019-0014 and California SB-793.
Federal Tobacco 21 (Public Law 116-94) and California Business and Professions Code section 22963 bar LA County retailers from selling cigarettes, cigars, vapes, or any tobacco product to anyone under 21. LA County DPH enforces in unincorporated areas with photo-ID checks.
LA County Ordinance 2019-0014 (LACO Title 11.04.250) bans the sale of all flavored tobacco products, including menthol cigarettes and flavored e-liquids, in unincorporated areas. California SB-793 imposes the same ban statewide as of December 2022, covering all 88 cities.
LA County banned single-use plastic carryout bags in unincorporated areas via Ordinance 2010-0059, requiring a minimum 10-cent paper-bag charge. California SB-270 extended the ban statewide, and AB-1162 (2024) further restricts pre-checkout plastic bags countywide.
LA County Code Title 12.84 bars food vendors and county facilities in unincorporated areas from using expanded polystyrene foam containers, cups, plates, and trays. California AB-1276 (Public Resources Code section 42273) extends parallel statewide standards to all cities since 2024.
LA County Code Title 12.84 makes unincorporated areas a straws-on-request jurisdiction, and California AB-1884 (Public Resources Code section 42270) plus AB-1276 extend parallel rules statewide. Restaurants cannot auto-distribute single-use plastic straws; disability requests must be accommodated.
California AB-1276 prohibits restaurants and food vendors from automatically providing single-use foodware accessories. Utensils, straws, condiments, and stirrers must only be supplied on customer request or self-serve, enforced countywide by LA County Public Health.
LA County Code Title 12.84 (Ord. 2008-0006) bans expanded polystyrene foam cups at all county facilities and food vendors operating on county property. California SB-54 phases out non-recyclable plastic cup packaging statewide by 2032, layering tighter standards over the county rule.
LA County Code Title 12.84 bans expanded polystyrene takeout containers at unincorporated-area food businesses. California AB-1201 sets ASTM compostability labeling rules so containers marketed compostable meet ASTM D6400 or D6868 standards before being sold or used countywide.
LA County Code Title 8.100 sets a minimum wage for unincorporated areas that mirrors the LA City schedule. Adopted by Ordinance 2015-0030, the rate adjusts each July with CPI and applies to all employers in unincorporated zones.
LA County Code Title 8.102 requires paid sick leave for employees in unincorporated areas, aligning with California SB-616's five-day floor. Workers accrue at least one hour per 30 worked, with carryover protections and no-retaliation provisions.
LA County has no general predictive-scheduling ordinance for unincorporated areas. California AB-1228 governs fast-food workers via the statewide Fast Food Council, and statewide retail rules apply uniformly without local mandates.
LA County Ordinance 2017-0118 (Title 1.05) prohibits Sheriff and county departments from cooperating with federal civil immigration enforcement absent a judicial warrant. California SB-54 reinforces the limits statewide for all 88 cities and the county.
California AB-1236 (Labor Code §2814) prohibits LA County and any city or county from requiring private employers to use E-Verify. Federal mandates apply only to federal contractors. LA County imposes no E-Verify requirement.
California Civil Code §3482.5 protects established agricultural operations from nuisance suits after three years of consistent activity. LA County applies the state rule, particularly important in Antelope Valley and Santa Clarita Valley farming areas.
LA County Code Title 22.06 establishes three agricultural zones for unincorporated areas: A-1 light agriculture, A-2 heavy agriculture, and A-2-H heavy agriculture with hog ranches. These zones cover most farming in Antelope Valley and Santa Clarita Valley.
LA County Code Title 8 Chapter 8.04 requires every retail food facility countywide to post an LACDPH letter grade within five feet of the entrance. A=90+, B=80-89, C=70-79; scores below 70 trigger immediate closure until reinspection clears violations.
LA County Code Title 11 Chapter 11.32 makes property owners countywide responsible for abating rodents. LACDPH Vector Management investigates outdoor complaints in unincorporated areas and supports cities. California AB-1788 bans second-generation anticoagulant rodenticides for non-licensed users statewide.
California Civil Code §1954.603 requires LA County landlords to give every new tenant a written bed-bug information notice and disclose known infestation history. LACDPH Vector Management investigates complaints in unincorporated areas; cities run their own habitability enforcement.
California Health & Safety Code §118286 bans putting home-generated sharps in regular trash or recycling. LA County operates seven S.A.F.E. Centers and rotating household hazardous waste roundups countywide for free drop-off. Mail-back kits are also available.
LACDPH and partners run the Healthy Neighborhood Market Network countywide, helping corner stores in food-desert communities stock fresh produce. The program offers refrigeration grants, technical assistance, and marketing support; participation is voluntary, not a mandate.
Calorie labeling on menus across LA County is governed by federal FDA rules at 21 CFR §101.11, requiring chains with 20 or more locations to post calorie counts. LACDPH inspectors check compliance during routine retail food inspections. California AB-1100 adds beverage warnings.
Under California Health and Safety Code §113948, every food handler in LA County must obtain an ANSI-accredited food handler card within 30 days of hire. Cards are valid for three years. LACDPH inspectors verify compliance during routine retail food inspections countywide.
LA County Building Code Title 26 classifies childcare centers as Group E or I-4 occupancies with specific egress, fire-protection, and lead/asbestos clearances. CCR Title 22 licensing through CCLD adds operational rules on staffing, square footage, and outdoor space.
LA County Building Code Title 26 adopts CRC R313, requiring automatic fire sprinklers in all new one- and two-family dwellings and townhomes. LACoFD reviews plans countywide for unincorporated and contract cities served by the district.
LA County Building Code Title 26 and Fire Code Title 32 incorporate California Fire Code §1010.1.9, restricting locks and latches on required egress doors. Single-action hardware, no double-cylinder deadbolts on exits, and panic hardware in assembly occupancies are mandatory.
LA County has no countywide BMO like LA City, but Title 22 Chapter 22.110 sets hillside grading and bulk limits, and several Community Standards Districts cap floor area ratio in unincorporated communities like Altadena, La Crescenta-Montrose, and Topanga.
LA County Code Title 31 adopts the California Green Building Standards Code (CALGreen, Title 24 Part 11) with local amendments. Mandatory measures cover construction-waste diversion, water-efficient fixtures, EV-ready parking, and indoor air quality for new buildings.
California Structural Pest Control Act (B&P Code §8500+) requires licensed operators for pest treatments. LA County Environmental Health enforces vector control in unincorporated areas. Termite reports are required for most real estate transactions.
California Health and Safety Code §17920.10 and federal EPA regulations require lead paint disclosure, testing, and safe work practices in pre-1978 buildings. LA County Environmental Health enforces childhood lead poisoning prevention programs.
Scaffolding on construction sites in unincorporated LA County must comply with Cal/OSHA Title 8 regulations and LA County Building Code. Sidewalk canopies and pedestrian protection are required for construction along public ways.
Elevators in LA County must comply with California Conveyance Safety Act (Labor Code §7300+). Annual inspections by the Division of Occupational Safety and Health are required. All elevator installations need permits from LA County Building and Safety.
LACO Title 11.04.260 requires every tobacco retailer in unincorporated LA County to hold an annual county license costing roughly $342, with density caps near schools, pharmacy bans, and 1,000-foot buffers from K-12 campuses. Incorporated cities have their own programs.
LACO Title 22.140.220 bars commercial auto repair as a home occupation in unincorporated LA County. Residents may work on personally owned vehicles in their own driveway or garage, but cannot run a paid repair business or store customer cars on the property.
LACO Title 22.140.300 zones adult businesses only outside 1,000-foot buffers from schools, churches, parks, and homes in unincorporated areas. Title 7.18 requires a Sheriff business license with operator background check before any adult arcade, cabaret, or bookstore can open.
LACO Title 7.34 requires a county operator permit for any massage business in unincorporated LA County, on top of the state CAMTC certification each therapist must hold under Bus. & Prof. Code §4600. Sheriff inspectors review premises, lighting, and unobstructed-window standards.
Tattoo, piercing, and permanent-makeup shops in unincorporated LA County need a Title 11.36 health permit from LA County DPH Body Art Program plus LASD operator clearance. State Penal Code §653 bans tattooing anyone under 18, with no parental consent exception.
Smoke shops in unincorporated LA County face Title 22.140.300 sensitive-use zoning, the Title 11.04.250 flavored-tobacco sales ban from Ordinance 2019-0014, and the Title 11.04.260 tobacco retail license cap. Hookah lounges hold a narrow on-site consumption exemption.
Secondhand dealers in unincorporated LA County need a Title 7.18 Sheriff business license plus state Bus. & Prof. Code §21626 registration. Daily LeadsOnline reporting of all purchases and a 30-day police hold on every item are mandatory before resale.
Pawnbrokers in unincorporated LA County operate under California Financial Code §21000 plus LACO Title 7.18, with a 90-day minimum loan term and 60-day grace period before any pledge can be sold. Daily reporting goes to LASD through the CAPSS system.
Tow operators in unincorporated LA County need LACO Title 7.92 permits and CHP carrier certification. Sheriff dispatches non-consensual tows through Official Police Garage rotation contracts. CA Vehicle Code §22658 caps private-property tow fees and requires posted signs before any non-consent tow.
LA County maintains roughly 30 community plans plus several specific plans under LACO Title 22 that overlay base zoning across unincorporated areas like Altadena, East LA, Marina del Rey, and Topanga with tailored use, density, height, and design rules.
Projects setting aside affordable units in unincorporated LA County qualify for state-mandated density bonuses, parking reductions, and concessions under California Government Code Section 65915 and LACO Title 22.140.250, with bonuses now up to 80 percent.
LA County does not use the LA City TOC tier system; instead, individual community plans add Transit-Oriented District (TOD) overlays under LACO Title 22, while Metro Joint Development sets terms for housing on Metro-owned parcels near rail.
LACO Title 22.110.090 governs Hillside Management Areas in unincorporated LA County, applying a slope-density formula, requiring vegetation protection, and triggering geotechnical review and CEQA evaluation for steep-lot development.
Unincorporated coastal areas including Marina del Rey and Topanga lie within the California Coastal Zone, requiring Coastal Development Permits under LACO Title 22.46 and concurrent California Coastal Commission review for projects affecting public access, views, or sensitive habitat.
LA County Code Title 11.36 bans smoking in county parks (2007), on county beaches (2009), at outdoor dining areas (2010), and within twenty-five feet of any business doorway, window, or air intake. The rules cover tobacco, e-cigarettes, and cannabis under Public Health enforcement countywide.
LA County Code Title 13.10.040 prohibits aggressive solicitation in unincorporated areas, including blocking pedestrians, touching, intimidating language, or soliciting near ATMs, bus stops, and outdoor dining. Passive panhandling remains constitutionally protected, but aggressive conduct is an infraction enforced by LASD.
LA County Code Title 13.10 and Title 13.32, together with the LA County Public Health Code, prohibit urinating or defecating in any public place or on private property visible from a public way. Violations are infractions starting at $250 enforced by the Sheriff's Department and Public Health.
Skateboarding is restricted in LA County parks under Title 13.50, on Beaches and Harbors bike paths, and on county-controlled commercial walkways. California Vehicle Code Section 21212 also requires riders under eighteen to wear a helmet whenever skating in any public street, bikeway, or trail.
LA County Code Title 13.36 declares loud or unruly gatherings a public nuisance and lets the Sheriff bill the host, property owner, and on-site adults for response and abatement costs after a written warning. The rule mirrors LA City Section 41.40 and layers atop Title 12 noise limits.
LA County does not prohibit loitering itself, since vague loitering bans violate the First and Fourth Amendments. Title 13 reaches only narrow loitering-with-intent conduct, such as loitering to commit theft, prostitution-related solicitation, or drug sales, mirroring California Penal Code Sections 647 and 653.22.
California Assembly Bill 2147, the Freedom to Walk Act, amended Vehicle Code Section 21955 effective January 2023. Crossing midblock outside a marked crosswalk is now an infraction only when an immediate hazard of collision exists. LA Sheriff adopted the new statewide standard for unincorporated areas.
California Health and Safety Code Section 11362.3 prohibits smoking, vaping, or ingesting cannabis in any public place, in any place where tobacco smoking is banned, and within one thousand feet of a school, daycare, or youth center while children are present. LASD enforces a $100 infraction.
LA County Code Title 13.36.050 prohibits drinking alcoholic beverages in unincorporated parks, beaches, parking lots, and public streets without a permit. California Business and Professions Code Section 25620 also makes possessing an open container in any public place a statewide infraction enforced by LASD.
LA County Waterworks Districts and Metropolitan Water District (MWD) member agencies restrict outdoor irrigation to assigned days and prohibit watering during daytime hours, with deeper cuts triggered when MWD declares regional shortage stages.
Metropolitan Water District's SoCal Water$mart rebate program pays a baseline $3 per square foot for replacing live turf with California-friendly landscaping across LA County, with city retailers like LADWP and Long Beach Water adding top-up amounts.
LA County Sanitation Districts produce tertiary-treated recycled water at facilities like Whittier Narrows and San Jose Creek for irrigation and industrial use, distributed through purple-pipe systems regulated under LACO Title 11.38 and Title 22 CCR.
LA County Waterworks District customer rules require prompt repair of customer-side leaks once notified, while California SB-555 obligates urban water suppliers to detect, report, and reduce system-wide water loss through annual audits.
LA County does not operate a countywide shared scooter or e-bike permit program; most unincorporated areas prohibit dockless deployment, while limited DPW pilots and special programs exist in coastal unincorporated zones like Marina del Rey.
The 2022 LA County Curb Management Strategy prioritizes pickup and dropoff over parking and loading in commercial corridors. DPW retrofits curb zones using a tiered hierarchy with TNC (Uber, Lyft) zones, accessible loading, and parking allocations in unincorporated business districts.
LA County does not regulate aircraft engine run-ups; airport operators do. LAX (Los Angeles World Airports) caps run-ups at designated bays with hush-house enclosures. Bob Hope (Burbank) restricts maintenance run-ups overnight. Long Beach Airport's Noise Ordinance is the strictest in California.
FAA federal preemption blocks LA County from regulating helicopter altitude or routes. Title 12.08.330 still bars willful operation creating disturbing ground noise. LASD Air Support, news, traffic, and hospital helipads dominate countywide rotorcraft activity.
LA County Code §12.08.440 caps powered construction equipment at 75 dBA measured at 50 feet from the source in unincorporated areas. Work allowed Mon-Sat 7am-8pm; banned on Sundays and holidays. LASD and DPW handle citations.
LA County Code §12.08.500 limits motor-vehicle noise to 75 dBA at 50 feet on local streets. California Vehicle Code §27007 bans amplified sound systems audible 50 feet from a truck. Early-morning grocery and trash deliveries draw most complaints.
Federal law preempts LA County from designating helicopter flight paths. The LA Helicopter Noise Coalition, FAA, and operators publish voluntary routes over freeway corridors and avoid residential overflight where practical. LASD Air Support and tour operators participate but compliance is non-binding.
Hospital helipads in LA County need a building permit under California Building Code §1503.3 plus LACOFD Title 32 fire approval. Medevac flights enjoy emergency exemptions from §12.08.330 noise rules, but routine training flights must minimize residential disturbance.
LA County Code Title 12.08 measures low-frequency bass from sound systems on the C-weighted scale, capping levels at 60 dB(C) inside neighboring residences in unincorporated areas. LASD investigates throbbing-bass complaints from clubs, parties, and modified vehicles.
Bars and entertainment venues in unincorporated LA County must comply with Chapter 12.08 exterior noise standards. Commercial zone limits are 60 dBA daytime and 55 dBA nighttime. Conditional use permits often impose stricter noise conditions.
HVAC systems and mechanical equipment in unincorporated LA County must comply with Chapter 12.08 exterior noise standards. Residential HVAC units cannot exceed 50 dBA daytime or 45 dBA nighttime at the neighboring property line.
Car alarms in unincorporated LA County are regulated under Chapter 12.08 and California Vehicle Code §22651.5. Alarms sounding for extended periods may result in vehicle towing. Owners are responsible for ensuring alarms do not create a nuisance.
Generators and power equipment in unincorporated LA County must comply with Chapter 12.08 exterior noise standards. Portable generators commonly exceed residential noise limits and should use sound enclosures. Emergency generators have limited exemptions.
Measure ULA, the high-value real estate transfer tax, is a Los Angeles City ordinance under LAMC Section 21.9.2 and does not apply countywide. Most LA County sales pay only the California documentary transfer tax baseline, plus city add-ons where applicable.
Los Angeles County has not enacted a countywide vacancy tax on empty homes or commercial space. Unincorporated areas and most LA County cities impose no annual penalty on vacant property, although several cities including Santa Monica have studied measures.
LA County Code Title 22.140.470 imposes an affordable housing linkage fee on new commercial and market-rate residential development in unincorporated areas. Fees fund the Affordable Housing Trust administered by LACDA, with rates tiered by zone.
LA County Code Title 7 requires a county business license for trades operating in unincorporated areas, with classifications driving fees, inspections, and gross-receipts taxes. The Treasurer-Tax Collector and TTC Business License Unit administer the program.
LA County Code Title 4.72 imposes a 10 percent parking occupancy tax on commercial parking transactions in unincorporated areas. Operators register with the Treasurer-Tax Collector, collect tax from drivers, and remit monthly under audit by the TTC.
Los Angeles County does not run a citywide Systematic Code Enforcement Program; Title 8.52 RSTPO provides limited inspection authority in unincorporated areas and LA County DPH inspects on tenant complaint.
California Code of Regulations Title 17 and federal Title X mandate lead hazard disclosure on pre-1978 rentals, while LA County DPH runs the Childhood Lead Poisoning Prevention Program with mandatory case reporting and abatement.
LA County's Rental Housing Habitability Program (RHHP), established by Chapters 8.53 and 8.55 (enacted April 2024), requires inspection of all rental units in unincorporated areas every 4 years. Inspections began November 2024.
LA County's RHHP enforces habitability standards per California Civil Code §1941.1 and the County Building Code. Rental units must have working plumbing, heating, electrical, weather protection, sanitation, and be free of pests and mold.
Tenants in unincorporated LA County can file habitability complaints with the RHHP. Environmental Health contacts complainants within 3 days and schedules inspections within 7 days. Landlords cannot retaliate against tenants who file complaints.
LA County Code Title 4.72 imposes a 12 percent transient occupancy tax on lodging stays under 30 days in unincorporated areas, including hotels, motels, and short-term rentals. The Treasurer-Tax Collector registers operators and audits monthly remittances.
LA County Code Title 8.105, adopted as Ordinance 2014-0024, requires successor hotel employers in unincorporated areas with 50 or more rooms to retain incumbent non-managerial workers for a 90-day transition and evaluate them in good faith before terminations.
LA County Code Title 8.105, paired with the countywide minimum wage at Title 8.100, sets a higher hotel-worker living wage for non-managerial staff at unincorporated hotels with 50-plus rooms. Rates track the LA City hotel wage and adjust each July.
LA County Code Title 13.36 restricts sitting or lying on unincorporated public sidewalks during specified hours, but Martin v. Boise and Jones v. City of Los Angeles bar enforcement when adequate shelter beds are unavailable.
LA County Code Title 22.140.620 authorizes by-right ministerial approval for affordable and bridge housing including PATH Pathways to Health and Home interim sites in unincorporated areas to fast-track homeless solutions.
Unincorporated Los Angeles County applies Title 13.36 anti-lodging and anti-encampment rules instead of the Los Angeles City LAMC 41.18 ordinance, with the Sheriff's Department handling enforcement subject to Martin v. Boise constraints.
Los Angeles County conducts CARE-style encampment cleanups in unincorporated areas under Title 13.36 with mandatory 72-hour notice and property storage protections required by Lavan v. City of Los Angeles.
LA County extended COVID-era outdoor dining as a permanent program for unincorporated areas through DPW Public Works and DPH. Restaurants apply for sidewalk and parking-lot dining permits under Title 16.40 with ADA, fire-lane, and health requirements.
LA County DPW runs parklet pilots converting parking spaces into public seating in Marina del Rey, East LA, and Florence-Graham. Sponsors apply under Title 16.40 with $5,000-$15,000 buildout costs, design review, ADA compliance, and three-year maintenance commitments.
LA County Code Title 16.04 governs temporary closure of public roads for parades and processions. Public Works issues road closure permits with LA County Sheriff coordination for traffic control, route review, and required liability insurance.
LA County Code Title 7.84 sets special-event rules for street fairs, festivals, and outdoor markets. Organizers obtain permits from Treasurer-Tax Collector business licensing, plus LACoFD and Public Health review for tents, food, and crowd safety.
LA County DPW issues sidewalk-dining encroachment permits in unincorporated commercial corridors. Tables and chairs must preserve a five-foot ADA-compliant clear path, with Public Health review for outdoor food service per California Retail Food Code.
LA County Fire Code Title 32 §6101 caps propane patio heaters at one 20-pound cylinder per heater on commercial patios with 10-foot clearance from buildings. CARB regulates outdoor heater emissions, and SCAQMD natural-gas heater rules apply across the LA basin.
FilmLA processes commercial filming permits for unincorporated LA County, coordinating with Public Works on road closures, LA County Sheriff for traffic and security, and LACoFD for stunts, pyrotechnics, and special-effects review under Title 32.
Block parties in unincorporated LA County require road closure approval from Public Works, the Sheriff's Department, Fire Department, and CHP. Applications must include consent forms from affected residents and proof of liability insurance.
Events in LA County parks require permits from the Department of Parks and Recreation. Events expecting 100+ attendees or generating $5,000+ in fees need a Facility Use Agreement. Smaller events use a standard Facility Use Permit (Form P&R-82).
Sidewalk cafes in unincorporated LA County require encroachment permits from Public Works and planning approval. A minimum 4-foot clear pedestrian path must be maintained. ADA accessibility requirements apply to all outdoor dining setups.
Los Angeles County does not use Historic Preservation Overlay Zones; unincorporated areas instead apply Significant Ecological Areas under Title 22.110.060 for natural resources and Mills Act historic districts for buildings.
California Government Code 50280 and LA County Code Title 22.124 allow Mills Act contracts that cut property tax bills 60 to 70 percent for designated historic property owners who agree to ten-year preservation plans.
Los Angeles County imposes a demolition stay under Title 22.124 for designated historic landmarks in unincorporated areas, with Cultural Heritage Commission review required before any demolition permit can issue.
Los Angeles County designates historic landmarks under Title 22.124, with the Historical Landmarks and Records Commission recommending Board of Supervisors approval for properties of local, state, or national cultural significance.
Ailanthus altissima, the tree-of-heaven, is a Cal-IPC rated high-impact invasive that the LA County Agricultural Commissioner detects and treats due to its host role for the spotted lanternfly pest threat to California agriculture.
Los Angeles County Department of Public Works street tree program shifts from non-native palms toward native shade species under community plan policies, citing low shade canopy and water inefficiency of palms.
The LA County Agricultural Commissioner maintains a list of noxious weeds and invasive plant species. California's noxious weed list (Food & Agriculture Code §5004) applies countywide. Additionally, the county's landscaping and water-efficient ordinance discourages high-water-use ornamental species.
Los Angeles County does not have a specific countywide ordinance banning or restricting bamboo planting. However, running bamboo that spreads onto neighboring properties can create civil liability under California nuisance law, and the LA County Agricultural Commissioner monitors invasive species.
LA County allows front yard vegetable and food gardens in unincorporated areas. California AB 2561 (2022) prohibits local governments from banning front yard food gardens. The county's drought-tolerant landscaping incentives further encourage replacing ornamental lawns with productive gardens.
LA County has no specific doorbell camera ordinance, so California Penal Code 632 two-party consent for recorded conversations and Civil Code 1708.8 anti-paparazzi privacy rules govern Ring and Nest installations in unincorporated areas.
Los Angeles County has no countywide facial recognition prohibition; the Sheriff's Department accesses state and federal facial recognition databases including DOJ Cal-ID under existing law enforcement information-sharing agreements.
The Los Angeles County Sheriff's Department operates automated license plate reader systems under California Civil Code 1798.90.5 and SB 34 retention, security, and audit requirements applicable to all California ALPR operators.
Security cameras on private residential property are legal in unincorporated LA County. California is a two-party consent state for audio recording (Penal Code §632), so cameras recording audio require all-party consent. Cameras must not point into areas where neighbors have a reasonable expectation of privacy.
California is a two-party (all-party) consent state for recording confidential communications. Under Penal Code §632, recording private conversations without consent from all parties is a crime punishable by fines and imprisonment. This applies to both audio and video recordings that capture private communications.
In unincorporated LA County, privacy fences up to 6 feet are allowed in side and rear yards without a building permit. Front yard fences are limited to 42 inches. Fences over 6 feet require a permit from the Department of Public Works, Building and Safety Division.
LA County's Sidewalk Vending Ordinance designates permitted vending areas and restricted zones in unincorporated communities. Vendors must maintain distances from storefronts, intersections, fire hydrants, and transit stops.
LA County's Sidewalk Vending Ordinance (adopted February 2024, effective August 2024) requires all vendors in unincorporated areas to register with the Department of Economic Opportunity for a Sidewalk Vending Registration Certificate (SVRC).
Food vending carts in unincorporated LA County must meet Department of Public Health CMFO standards. LA County partnered with the City of LA to provide free health-compliant carts to qualifying vendors through the sidewalk vending program.
In unincorporated LA County, the Department of Public Works maintains public sidewalks. Property owners are responsible for damage caused by trees on their property. The County operates a Sidewalk Repair Program for qualifying neighborhoods.
LA County Code prohibits obstructing public sidewalks and rights-of-way in unincorporated areas. A minimum 4-foot clear path must be maintained for ADA compliance. Encroachment permits are required for any permanent or semi-permanent use of sidewalk space.
Any work within a public right-of-way in unincorporated LA County requires an encroachment permit from the Department of Public Works. This includes utility connections, driveways, sidewalk modifications, and temporary construction activities.
Fences under 6 feet in height do not require a building permit in unincorporated LA County. Fences over 6 feet, retaining walls with fences, and fences in special zoning areas require permits. Front yard fences must not exceed 42 inches within the required setback.
In unincorporated LA County, one-story detached accessory buildings (tool/storage sheds) under 120 square feet with a maximum height of 12 feet are exempt from building permits. Larger sheds require a permit from the DPW Building and Safety Division. All sheds must comply with zoning setbacks.
In unincorporated LA County, decks not more than 30 inches above grade and not over any basement or story below are exempt from building permits. Elevated decks, covered patios, and attached patio covers require permits from the DPW Building and Safety Division.
Most renovation work in unincorporated LA County requires a building permit from the DPW Building and Safety Division. Permits are needed for structural changes, electrical/plumbing/mechanical work, roofing, and window/door replacements that change openings. Cosmetic work generally does not require permits.
LA County Building and Safety investigates code complaints through scheduled inspections. Emergency safety hazards are prioritized, while routine complaints are generally investigated within 10-15 business days of filing. Complex cases involving permits or legal action may take longer.
Residents in unincorporated Los Angeles County can report building, zoning, and property maintenance violations to the LA County Department of Public Works, Building and Safety Division. Reports can be filed online, by phone at (626) 458-3173, or through the LA County portal.
The most frequently cited code violations in unincorporated LA County include construction without permits, illegal dwelling units (garage conversions), overgrown vegetation, unpermitted signage, and property maintenance failures such as accumulated debris and dilapidated structures.