Pop. 69,825 · Contra Costa County
California Fish & Game Code Section 2118 prohibits possession of most exotic and wild animals statewide, and Walnut Creek defers to state law; venomous reptiles, non-human primates…
Livestock such as cattle, horses, goats, sheep, and pigs are generally prohibited in Walnut Creek's residential zones and are only permitted on large-acreage parcels zoned for…
Residential beekeeping is permitted in Walnut Creek subject to hive setbacks from property lines and neighboring dwellings, limits on hive count per lot size, and the provision of a…
Walnut Creek follows California state law, which under Food & Agricultural Code Section 31683 preempts all breed-specific legislation; dangerous dog determinations are based solely on…
Walnut Creek residents regularly encounter deer, wild turkeys, coyotes, raccoons, skunks, and the occasional mountain lion due to the city's proximity to Mount Diablo State Park and…
Walnut Creek residential properties are typically limited to a combined total of four dogs and cats over four months of age per household, with additional animals requiring a kennel or…
Walnut Creek permits backyard chickens in most residential zones with typical limits of 4-6 hens per lot, coops set back at least 10-15 feet from property lines and 25 feet from…
All dogs over four months old in Walnut Creek must be licensed annually through Contra Costa County Animal Services and must be on a leash no longer than six feet when off the owner's…
Walnut Creek allows standard fence materials including wood, vinyl, masonry, stucco, wrought iron, and chain link with few restrictions, but certain materials such as barbed wire and…
Retaining walls up to four feet tall measured from the bottom of the footing to the top of the wall generally do not require a permit in Walnut Creek, while walls over four feet or…
Swimming pool barriers in Walnut Creek must comply with California Health & Safety Code Sections 115920-115929, requiring a minimum 60-inch-high enclosure with self-closing and…
Hedges and dense landscaping in Walnut Creek are treated as fences when used as boundary screening and are subject to the same height limits as solid fences — six feet in side and rear…
Walnut Creek fences are generally limited to six feet in rear and side yards and three and a half feet in front yards and street-side setbacks; corner lot visibility triangles require…
Building permits are not required for fences up to 7 feet tall in unincorporated Contra Costa County. Taller fences, any concrete or masonry wall, and retaining walls over 3 feet…
Powered lawn and garden equipment in Walnut Creek may only be operated 7:30 AM to 8:00 PM on weekdays and 9:00 AM to 8:00 PM on weekends and holidays, with gas-powered leaf blowers…
Walnut Creek observes nighttime quiet hours from 10:00 PM to 7:00 AM daily under Municipal Code Chapter 4-3, during which noise audible at a residential property line must not exceed…
Excessive vehicle noise in Walnut Creek is regulated under both the Municipal Code noise provisions and California Vehicle Code Section 27150, which requires all motor vehicles to have…
Amplified sound from speakers, PA systems, live bands, and DJs is prohibited in Walnut Creek if audible at the property line between 10:00 PM and 7:00 AM, and requires a special event…
Construction, demolition, and related site work in Walnut Creek is generally limited to 7:30 AM to 5:30 PM Monday through Friday and 9:00 AM to 5:00 PM on Saturdays, with no…
Contra Costa County's Noisy Animal Ordinance (County Code §416-12.202) makes it a violation for an animal to create noise 30 continuous minutes or 60 intermittent minutes within 24…
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…
Walnut Creek requires all short-term rental operators (rentals under 30 consecutive days) to obtain a city Business License and register for Transient Occupancy Tax collection. STRs…
Walnut Creek does not list short-term rental as a permitted residential use and does not issue STR permits, so the city imposes no STR-specific insurance, surety, or additional-insured…
Walnut Creek does not list short-term rentals as an allowed residential use, so all leases must run 31 days or longer and no STR-specific noise regime exists. The citywide nuisance…
Walnut Creek STR hosts must provide off-street parking consistent with residential parking requirements — typically 2 covered spaces per single-family home — and may not direct guests…
Walnut Creek imposes a 10% Transient Occupancy Tax on all rentals under 30 days under Municipal Code Chapter 3-4. Hosts must register for a TOT certificate, collect the tax on all rent…
Walnut Creek applies standard residential occupancy limits to short-term rentals — generally 2 guests per bedroom plus 2 additional, consistent with California Building Code and…
Short-term rentals (under 31 days) are prohibited in Walnut Creek. All rental/lease agreements must be for a minimum of 31 days. Operating STRs violates city ordinances and risks…
Walnut Creek requires a building permit for above-ground swimming pools unless the prefabricated pool's walls are 24 inches or less and capacity is 5,000 gallons or less. Pools must be…
Walnut Creek pool barriers must comply with California's Swimming Pool Safety Act (HSC §115920–115929), requiring a minimum 60-inch enclosure with self-closing, self-latching gates and…
All Walnut Creek pools and spas must have anti-entrapment drain covers meeting ANSI/APSP-16 and the federal Virginia Graeme Baker Pool and Spa Safety Act. Public pools and spas require…
A building permit from the Contra Costa County Building Inspection Division is required before installing any pool or spa in unincorporated areas. In-ground pools must be at least 5…
Hot tubs and spas fall under California's Swimming Pool Safety Act when capable of holding water deeper than 18 inches, requiring barriers, covers, or other approved safety features.
In Walnut Creek, detached storage sheds under 120 square feet and 12 feet tall are exempt from building permits under the California Building Code, but must still meet zoning setback…
Detached garages in Walnut Creek are regulated as accessory structures with zoning setbacks typically 3–5 feet from side/rear property lines and height limits around 15 feet. Garage…
Walnut Creek must allow Accessory Dwelling Units (ADUs) and Junior ADUs on all residential lots under California Government Code Section 65852.2, as strengthened by AB 68, AB 881, and…
Carports in unincorporated Contra Costa County are regulated as accessory structures under Title 8 (Zoning) of the County Ordinance Code and as covered structures under the California…
California HCD guidance and Health and Safety Code 18007 classify many tiny homes on wheels as manufactured housing or ADUs, granting statewide siting protections.
Home occupations in Walnut Creek are prohibited from having any exterior signage advertising the business. The home must retain its residential appearance from the street — no signs…
Home occupations in Walnut Creek require a Home Occupation Permit from the Community Development Department in addition to a city Business License. The home business must be clearly…
Customer visits to home occupations in Walnut Creek are limited to preserve residential character. Most home occupations permit only occasional, by-appointment customer visits…
California Health & Safety Code §1597.45 preempts local zoning: small family day care homes (up to 8 children) are treated as residential uses by right in Walnut Creek. Large family…
Unincorporated Contra Costa County requires a Home Occupation Permit (ministerial, issued over the counter) or a Land Use Permit before any business activity may be conducted from a…
The California Homemade Food Act sets uniform rules for cottage food operations, and Government Code 51035 bars local governments from prohibiting them in residential dwellings…
All consumer fireworks — including "safe and sane" varieties — are completely BANNED in Walnut Creek year-round. Possession, sale, use, or discharge of any fireworks within city limits…
Open burning is effectively prohibited in Walnut Creek. The Contra Costa County Fire Protection District (ConFire) enforces a year-round ban on outdoor residential burning, and the Bay…
Smoke alarms are required in every sleeping room, outside each sleeping area, and on every level of a home in Walnut Creek under the California Residential Code and Health & Safety…
Properties in Walnut Creek's Very High Fire Hazard Severity Zone and State Responsibility Area — including the city's eastern hills near Mount Diablo and along the Shell Ridge Open…
Residential fire pits must use gas or manufactured logs per BAAQMD. No wood fires. 25-ft setback from structures required. No use on Spare the Air days. WUI proximity makes compliance…
Backyard burning in unincorporated Contra Costa County is tightly limited: BAAQMD Regulation 5 prohibits burning yard waste, and recreational wood fires aren't among its allowed…
Wildfire rules in unincorporated Contra Costa County combine the state's 100-foot defensible-space requirement (PRC §4291) with the county fire code's hazardous-vegetation standards…
California uniformly applies the State Fire Marshal's propane storage standards through the California Fire Code, which all local jurisdictions must enforce as a minimum.
Walnut Creek restricts overnight parking of commercial vehicles in residential zones. Vehicles with commercial plates exceeding specified weight or length limits cannot be parked on…
Walnut Creek enforces the California Vehicle Code 22651(k) statewide 72-hour street parking limit. Downtown has metered parking and timed zones. Residential permit parking districts…
Walnut Creek restricts RV, boat, and trailer parking in residential zones. These vehicles cannot be stored in front yards or on public streets for extended periods. Side or rear yard…
Contra Costa County has no county-wide ordinance prohibiting overnight parking on public roads in unincorporated areas. The general 72-hour limit in Sec. 46-4.004 applies, and…
Contra Costa County's Division 430 establishes an abatement program for abandoned, wrecked, dismantled, or inoperative vehicles on public or private property. Code Enforcement may…
California Civil Code sections 4745 and 1947.6, plus Government Code 65850.7, create statewide rights for residents to install EV charging stations and require expedited local…
Walnut Creek encourages drought-tolerant and xeriscape landscaping. The city follows California's Model Water Efficient Landscape Ordinance (MWELO) for new projects and EBMUD offers…
Walnut Creek's Public Nuisance ordinance treats overgrown grass and weeds exceeding roughly 12 inches as a nuisance when they create fire hazards or harbor vermin. In fire hazard…
Walnut Creek has one of the Bay Area's strongest tree preservation ordinances. Removal of any Protected Tree — including Heritage Trees, native oaks, and trees of significant size on…
Noxious weeds on the Contra Costa County Agricultural Commissioner's list — including yellow starthistle, artichoke thistle, and various broom species — must be controlled by property…
Walnut Creek is served by East Bay Municipal Utility District (EBMUD) and Contra Costa Water District (CCWD), both of which enforce permanent statewide water waste prohibitions plus…
Unincorporated Contra Costa County protects larger trees under Ordinance Code Chapter 816-6: single-trunk trees 6.5 inches in diameter (at 4.5 feet) and multi-stem trees with combined…
Since SB 676 took effect in 2024, Government Code 53087.7 protects only drought-tolerant living landscaping from local bans, so cities may again prohibit artificial turf. Civil Code…
SB 1383 requires every California resident and business to separate food scraps and yard waste from trash, with universal collection or on-site composting.
The 2012 Rainwater Capture Act allows California residents to capture rainwater from rooftops for non-potable outdoor use without a state water-right permit, preempting most local…
Walnut Creek follows the California Building Code and California Residential Code requirements for smoke alarms: installed in every sleeping room, outside each sleeping area, and on…
Walnut Creek requires plumbing permits for most plumbing work including water heater replacement, repiping, sewer lateral repairs, and fixture additions. The California Plumbing Code…
California's Carbon Monoxide Poisoning Prevention Act (HSC §17926) requires CO alarms in every dwelling with a fossil-fuel appliance, fireplace, or attached garage. Walnut Creek…
Walnut Creek requires electrical permits from the Building Division for most electrical work beyond simple device replacement — including new circuits, service upgrades, panel…
Walnut Creek requires building permits for reroofing projects. Permits ensure compliance with the California Building Code (CBC), California Residential Code (CRC), and Title 24 energy…
California Civil Code 714 (Solar Rights Act) protects Walnut Creek homeowners from HOA restrictions that prohibit or significantly restrict solar installation. HOAs may impose only…
Walnut Creek offers streamlined solar permitting under California AB 2188 and SB 379, with same-day or 3-business-day permit processing for standard residential rooftop PV systems. The…
Walnut Creek does not operate a citywide rental registry for long-term rentals. Landlords must obtain a business license for rental activity. California AB 1482 (Tenant Protection Act)…
Walnut Creek follows the federal Residential Lead-Based Paint Hazard Reduction Act (Title X, 42 U.S.C. §4851) requiring landlords of pre-1978 rental housing to disclose known…
Under California Health & Safety Code §26147 (Toxic Mold Protection Act), Walnut Creek landlords must disclose known visible mold exceeding health thresholds before leasing and after…
California evictions run through the unlawful detainer process. Under Code of Civil Procedure § 1161, nonpayment requires a 3-day notice to pay rent or quit (excluding weekends and…
California landlords must keep rentals fit to live in. Civil Code §§ 1941 and 1941.1, reinforced by Green v. Superior Court, imply a warranty of habitability covering plumbing, heat…
Civil Code 1946.2 requires landlords statewide to have just cause to terminate tenancies of qualifying tenants who have lived in a covered unit at least 12 months.
California Civil Code § 1954 limits when a landlord may enter a rented home. Except in emergencies, abandonment, or with tenant consent, the landlord must give reasonable written…
California sets no fixed dollar or percentage cap on rent late fees, but a late fee in a residential lease is treated as liquidated damages. Under Civil Code § 1671, such a fee is…
To end a California month-to-month tenancy, a tenant gives 30 days' written notice. A landlord gives 30 days if the tenant has lived there under a year, or 60 days if a year or more…
California limits annual rent increases statewide to 5% plus the local change in the cost of living, capped at 10%, under the Tenant Protection Act of 2019 (AB-1482). It also lets…
California requires written notice before raising a month-to-month tenant's rent. Under Civ. Code § 827, increases of 10% or less in 12 months need 30 days' notice; increases above 10%…
As of July 1, 2024, California landlords may collect no more than one month's rent as a security deposit, regardless of whether the unit is furnished. The deposit, minus any lawful…
California adverse possession requires five years of continuous, open, hostile possession AND payment of all property taxes during that period under Code of Civil Procedure § 325. A…
Drone privacy in Walnut Creek is governed by California Civil Code §1708.8 (physical/constructive invasion of privacy) and Penal Code §647(j) (invasion of privacy with recording…
Commercial drone operations in California follow uniform federal rules under 14 CFR Part 107 plus statewide California provisions in Civil Code 1708.8 and Public Utilities Code 21401…
Walnut Creek HOAs may levy fines only after adopting a written fine schedule, providing individual notice, and giving the owner an opportunity to be heard before the board (Civil Code…
Davis-Stirling (Civil Code §5900–5965) requires California HOAs to offer Internal Dispute Resolution (IDR) and Alternative Dispute Resolution (ADR) before most lawsuits. Walnut Creek…
Walnut Creek has many HOAs — including the 10,000+ unit Rossmoor 55+ community — governed by the Davis-Stirling Common Interest Development Act (Civil Code §4000 et seq.). Where HOA…
California HOAs may levy regular and special assessments, charge late fees and interest, record liens, and ultimately foreclose on delinquent owners under the Davis-Stirling Act. State…
California tightly regulates HOA governance. The Common Interest Development Open Meeting Act (Civil Code 4900-4955) governs board meetings and member access, sections 5100-5145…
California HOAs enforce recorded CC&Rs and architectural rules, but Civil Code section 4765 requires architectural decisions to be fair, reasonable, and in good faith, and sections…
Walnut Creek does not require permits for residential garage sales under WCMC §5-3. Sales are limited to 2-3 events per address annually, maximum 3 consecutive days each. Sales must…
Walnut Creek limits residential garage sales to 2-3 events per calendar year per address, each up to 3 consecutive days, under WCMC Chapter 5-3. Excessive frequency indicates…
Illegal dumping in Walnut Creek is a misdemeanor under WCMC §5-8.310 and California Penal Code §374.3, punishable by fines up to $1,000 for first offense, $3,000 for second, and $6,000…
Walnut Creek residents must use Republic Services-issued carts only. Standard sizes are 20, 32, 64, and 96 gallons for garbage; 64 or 96 gallon for recycling and organics. Overfilled…
Walnut Creek mandates curbside recycling under CA AB 341 (commercial) and AB 1826/SB 1383 (organics). Blue carts accept paper, cardboard, metals, glass, and rigid plastics #1-#7. Green…
Walnut Creek residential Republic Services customers receive two free on-call bulky item pickups per year for furniture, mattresses, appliances, and large items. Schedule 48 hours in…
Republic Services provides weekly trash, recycling, and organics collection in Walnut Creek under an exclusive franchise agreement. Collection days vary by neighborhood…
Walnut Creek prohibits illicit discharges to the storm drain system under its Municipal Regional Stormwater NPDES Permit. Violations can result in significant fines, cleanup cost…
Walnut Creek has significant FEMA Special Flood Hazard Areas along Walnut Creek (the watercourse), Las Trampas Creek, San Ramon Creek, and Pine Creek. Much of the Pine Creek corridor…
The California Coastal Act, Public Resources Code sections 30000 through 30900, requires Coastal Development Permits for nearly all work in the coastal zone and gives the Coastal…
Food trucks operating in Walnut Creek require a City business license, a Contra Costa County Environmental Health mobile food facility permit, and compliance with the California Retail…
Walnut Creek restricts where food trucks may operate through zoning rules. Trucks are generally permitted in commercial and industrial zones on private property with owner permission…
Walnut Creek prohibits light glare and spillover onto neighboring properties and public rights-of-way. Property owners must shield and direct outdoor lighting to avoid creating a…
Walnut Creek regulates outdoor lighting through its zoning code to minimize light pollution and glare on neighboring properties. While not a formal Dark Sky community, the city…
Walnut Creek treats political signs the same as other temporary yard signs under content-neutral rules: 6 sq ft aggregate on private property. California Elections Code §18370 and…
Walnut Creek allows temporary garage sale signs during active sale hours only, on private property with owner permission. Signs on utility poles, street trees, and public rights-of-way…
Walnut Creek bans all commercial cannabis retail, including medical dispensaries, under WCMC §10-2.3.204 (adopted 2017). State-licensed delivery services may deliver medical cannabis…
Health and Safety Code section 11362.2 grants every adult 21 or older the statewide right to cultivate up to six cannabis plants indoors, and bars local governments from completely…
Walnut Creek parks and open space are closed from sunset (or posted time) to sunrise under WCMC §4-4.112, unless a permitted event is in progress. Civic Park, Heather Farm, and…
Walnut Creek Municipal Code §4-2.202 establishes a curfew for minors under 18: prohibited in public places between 11:00 PM and 5:00 AM Sunday-Thursday, and midnight to 5:00 AM…
Walnut Creek does not maintain a municipal No-Knock list. Residents may post No Soliciting signs at their door, which commercial solicitors are legally required to honor. The FTC…
Walnut Creek requires commercial solicitors to obtain a Peddler/Solicitor Permit under WCMC Chapter 5-6 with background check and $150-300 fee. Permitted hours: 9 AM to 7 PM only. No…
Contra Costa County has no dedicated data-center ordinance. In the unincorporated county, a data center is treated as an industrial use, allowed in the L-I, H-I, C-M, or W-3 industrial…
Contra Costa County has no ordinance specific to cryptocurrency or blockchain mining. A commercial mining operation is treated as a data center or industrial use, allowed in the L-I…
Contra Costa County has no codified decibel ordinance for stationary sources. A data center's cooling and generators are held to the 2045 General Plan land-use compatibility standard…
California sets a statewide minimum wage floor under Labor Code 1182.12, $16.90 per hour for all employers as of January 2026. Local governments are not preempted and may set higher…
California's Healthy Workplaces, Healthy Families Act under Labor Code 245-249 mandates paid sick leave for nearly all employees statewide. SB 616 (2023) raised the minimum to 40 hours…
California regulates concealed carry weapons licenses statewide under Penal Code 26150 through 26225. Senate Bill 2 (2023) imposes uniform sensitive-place restrictions and applicant…
California preempts most local firearm regulation under Government Code 53071 and Penal Code 25605, reserving licensing, registration, and manufacture authority to the state. However…
California broadly prohibits open carry of firearms statewide under Penal Code 25850 (loaded firearms in public) and Penal Code 26350 (open carry of unloaded handguns). The prohibition…
California prohibits carrying loaded firearms in vehicles statewide under Penal Code 25400 and 25850. Unloaded handguns transported in private vehicles must be in a locked container or…
California prohibits state and local governments from requiring private employers to use the federal E-Verify system except where federal law mandates it, under Labor Code 2812. The…
The California Values Act (SB 54, 2017) codified at Government Code 7284-7284.12 limits state and local law enforcement cooperation with federal immigration authorities. It applies…
The California Land Conservation Act of 1965 (Williamson Act), Government Code 51200-51297.4, allows landowners to enter contracts with counties restricting land to agricultural use…
The California Right to Farm Act under Civil Code 3482.5 protects established agricultural operations from nuisance lawsuits brought by neighbors who moved in after farming began. The…
California prohibits grocery stores and large retailers from providing single-use plastic carryout bags under Public Resources Code 42280-42288, enacted by SB 270 (2014) and ratified…
California restricts expanded polystyrene food containers statewide through SB 54 (2022) packaging requirements under Public Resources Code 42040-42081. The law mandates that…
California Public Resources Code 42270-42273, enacted by AB 1884 (2018), prohibits full-service restaurants from providing single-use plastic straws unless requested by the customer…
California prohibits sale of tobacco and vapor products to anyone under 21 statewide under Business and Professions Code 22958, enacted by SBX2-7 in 2016. The Tobacco 21 standard…
California bans retail sale of most flavored tobacco products statewide under Health and Safety Code 104559.5, enacted by SB 793 (2020) and upheld by voters via Proposition 31 in…
California requires statewide licensing of tobacco and vape retailers under the STAKE Act and the Cigarette and Tobacco Products Licensing Act. Business and Professions Code 22970…