Pop. 178,127 · Sonoma County
Home businesses in Santa Rosa must limit customer visits to avoid excessive traffic in residential neighborhoods. Client visits should be infrequent and not disrupt neighbors.
Santa Rosa allows home occupations in residential zones under Zoning Code Chapter 20-42. Businesses must be clearly secondary to the residential use and comply with limitations on employees, signage, and client visits.
Home businesses in Santa Rosa are generally prohibited from displaying commercial signage visible from the street. A small nameplate sign may be allowed depending on the type of home occupation.
Santa Rosa supports garage conversions to ADUs under California ADU law. Converting a garage to living space requires a building permit but parking replacement is not required under state law.
Santa Rosa actively promotes Accessory Dwelling Units under California ADU law and local Zoning Code Chapter 20-42. ADUs up to 1,200 sq ft are allowed on single-family lots with streamlined permitting.
Santa Rosa Zoning Code Section 20-42.030 caps carports at 16 feet tall and requires the carport face to sit at least 19 feet back from the property line, curb, or sidewalk on street-facing lots. Any structure over 120 sq ft needs a building permit. Carports are subject to Design Review and the 2022 California Building Code.
Small sheds under 120 square feet and under 10 feet tall do not require a building permit in Santa Rosa. Larger accessory structures require permits and must meet zoning setback requirements.
California HCD guidance and Health and Safety Code 18007 classify many tiny homes on wheels as manufactured housing or ADUs, granting statewide siting protections.
All fireworks, including safe-and-sane varieties, are illegal in Santa Rosa. The city enforces a complete ban due to wildfire risk in the region.
Open burning is generally prohibited in Santa Rosa. Burning of landscape debris, trash, or other materials requires a permit from the Sonoma County Air Quality Management District and the Fire Department.
Santa Rosa allows recreational fire pits with restrictions. Fire pits must be at least 15 feet from structures, use a spark arrestor, and comply with air quality regulations. Usage is prohibited during red flag warnings.
Sonoma County Code Chapter 13A (the Hazardous Vegetation Abatement Ordinance, Ord. 6148) requires every improved parcel in the unincorporated county - and every unimproved parcel inside a State or Local Responsibility Area - to maintain 100 feet of defensible space around structures, plus 10 feet of clearance along roads and driveways. Annual inspections begin in late spring, with about 4,000 properties checked each year. Failure to comply triggers re-inspection fees, county-contracted abatement billed to the owner, and recordation of a lien against the property.
Sonoma County's Fire Safety Ordinance 6396 (codified at Chapter 13) treats both State Responsibility Area (SRA) parcels and all Local Responsibility Area parcels designated 'Very High Fire Hazard Severity Zone' (VHFHSZ) on the 2025 CAL FIRE maps as Wildland-Urban Interface (WUI). New construction and substantial remodels in those areas must meet California Building Code Chapter 7A and California Residential Code Chapter 337 ignition-resistant standards - including Class A roofs, ember-resistant vents, non-combustible siding, dual-pane tempered windows, and ignition-resistant decking. The Tubbs (2017), Kincade (2019), and Glass/Walbridge (2020) fires triggered substantial tightening of these requirements.
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.
Santa Rosa limits construction noise to daytime hours. Residential construction is generally permitted from 7 AM to 8 PM on weekdays and 8 AM to 6 PM on weekends. Work outside these hours requires special approval.
Santa Rosa regulates noise under City Code Chapter 17-16. Unreasonable noise that disturbs the peace of residential neighborhoods is prohibited, with stricter enforcement during nighttime hours from 10 PM to 7 AM.
Santa Rosa addresses barking dogs under its animal control and nuisance provisions. Persistent barking that disturbs neighbors is considered a public nuisance. Sonoma County Animal Services handles complaints.
Unincorporated Sonoma County does not have a stand-alone leaf-blower ordinance; gas-powered and electric leaf blowers are regulated only through the General Plan Noise Element 50 dBA daytime / 45 dBA nighttime property-line limits and Chapter 3, Article III (Noise Control). However, the City of Sonoma (within the County) has had one of California's earliest gas-leaf-blower bans since December 22, 2016 (Measure V), prohibiting gas-powered leaf blowers entirely and allowing electric leaf blowers only Monday through Saturday from 9:00 a.m. to 4:00 p.m. Statewide, California AB 1346 phases out new sales of gas-powered small off-road engines (including leaf blowers) starting January 1, 2024.
Outdoor amplified music in unincorporated Sonoma County is one of the most heavily regulated activities in the County because of long-standing conflicts between wineries, event centers, and surrounding rural-residential neighbors. The Winery Events Ordinance amendments adopted by the Board of Supervisors on December 9, 2025 (taking effect June 9, 2026) impose a 1,600-foot setback from adjacent property for outdoor amplified music, a 625-foot setback for acoustic music, and a 450-foot setback for event parking, on top of the General Plan Noise Element 50 dBA daytime / 45 dBA nighttime property-line limits. Periodic special events are capped at 2,500 attendees. Non-winery amplified music is governed by Chapter 3, Article III (Noise Control) and use-permit conditions.
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.
Santa Rosa does not enforce breed-specific dog bans. However, dogs declared dangerous or vicious under California state law are subject to strict requirements regardless of breed.
Santa Rosa requires dogs to be on a leash no longer than 6 feet when in public places. Off-leash dogs are only permitted in designated dog parks.
Santa Rosa allows beekeeping in residential areas under Zoning Code Section 20-42.040. Hives must be set back from property lines and maintained to prevent nuisance conditions.
Santa Rosa follows California Department of Fish and Wildlife regulations for exotic animals. Many exotic species require state permits, and some are completely prohibited. Local zoning may further restrict animal keeping.
Sonoma County Code Chapter 26 (Zoning Regulations) is the controlling code for animal keeping. Farm animals are broadly permitted in the LIA, LEA, DA, RRD, AR, and RR districts subject to parcel-size limits, while the R1 single-family residential zone allows up to six hens housed in a rear-yard coop and no roosters or larger livestock.
Santa Rosa Chapter 20-48 does not set a specific minimum liability dollar figure for short-term rentals. The City's STR application packet asks operators to maintain liability coverage but does not publish a fixed amount; standard practice and platform guidance suggest at least $1 million. Most homeowner policies exclude paid stays under 30 days.
Santa Rosa Zoning Code Chapter 20-48 caps short-term rental occupancy at two renters per bedroom, never exceeding 10 total, excluding children under three. Bedroom count is set by the Sonoma County Assessor record. Daytime guests beyond that cap are allowed only between 8:00 AM and 9:00 PM.
Santa Rosa requires a vacation rental permit for all short-term rentals under Zoning Code Chapter 20-48. Operators must register with the city, meet safety standards, and designate a local contact person available 24/7.
Santa Rosa imposes strict noise rules on short-term rentals. Quiet hours are 9 PM to 8 AM, and outdoor amplified sound is prohibited at all times. Violations can lead to permit revocation.
Santa Rosa requires short-term rental operators to collect and remit Transient Occupancy Tax (TOT) at a rate set by city ordinance. All operators must register with the Finance Department.
Santa Rosa requires short-term rental properties to provide adequate off-street parking for guests. On-street parking by guests must not block driveways or violate local parking restrictions.
Registering a vacation rental in unincorporated Sonoma County is a five-step process under Permit Sonoma rules combined with Code Sec. 26-88-120 (zoning) and Chapter 4, Article VIII (license, Ord. 6386/6427): (1) become or hire a county-Certified Vacation Rental Property Manager, (2) obtain the TVR Zoning Permit, (3) register for a Transient Occupancy Tax (TOT) certificate, (4) apply for the annual Article VIII license, and (5) renew the license every 365 days. All advertising must include accurate permit info and conform to the permitted occupancy.
Santa Rosa requires property owners to maintain trees so they do not obstruct sidewalks, streets, or sight lines. Branches must be trimmed to at least 8 feet over sidewalks and 14 feet over streets.
Santa Rosa requires property owners to maintain vegetation and prevent overgrown conditions. Grass and weeds exceeding 12 inches are considered a nuisance subject to abatement.
Santa Rosa enforces water conservation regulations including restrictions on outdoor watering days and times. The city is served by Sonoma Water and follows state drought regulations.
Santa Rosa protects certain trees through its Tree Preservation Ordinance. Removing heritage trees or trees over a specified diameter requires a permit. Protected trees include native oaks and other significant species.
Sonoma County Code Chapter 13A (Abatement of Hazardous Vegetation and Combustible Material) requires property owners to maintain defensible space and remove hazardous vegetation in unincorporated areas. Defensible space extends 100 feet from structures, with a 'lean, clean, and green' zone in the first 30 feet and a 'reduced fuels' zone from 30 to 100 feet.
Government Code 65850.3 prevents California cities and HOAs from banning drought-tolerant artificial turf installed at single-family residential properties.
SB 1383 requires every California resident and business to separate food scraps and yard waste from trash, with universal collection or on-site composting.
AB-1572 prohibits using potable water to irrigate non-functional turf at commercial, institutional, and HOA-common areas, accelerating native and low-water landscape conversions statewide.
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 barriers.
Santa Rosa enforces a 72-hour parking limit on public streets. Vehicles may not remain parked in the same location for more than 72 consecutive hours. Posted restrictions in specific areas may impose shorter limits.
Santa Rosa restricts parking of recreational vehicles and boats on public streets. RVs and boats may not be stored on streets for extended periods and must comply with the 72-hour rule.
Santa Rosa requires driveways to meet zoning standards for width and materials. Vehicles must be parked on improved surfaces, not on front lawns or unpaved areas.
Santa Rosa restricts parking of commercial vehicles in residential zones. Vehicles over certain weight limits or with commercial equipment may not be stored in residential neighborhoods.
Sonoma County operates a free Abandoned Vehicle Abatement Program through Permit Sonoma's Code Enforcement Division, authorized under California Vehicle Code Sec. 22660 and the County's Vehicle Abatement Ordinance codified in Chapter 18 of the Sonoma County Code (Motor Vehicles and Traffic). The program lets property owners in unincorporated Sonoma County have inoperative, wrecked, or dismantled passenger cars, pickups, SUVs, and vans removed from their property at no cost in exchange for written permission to dismantle the vehicle; the program does not service recreational vehicle storage yards or auto repair shops. On public roads, abandoned vehicles are addressed under California Vehicle Code Sec. 22651 (which authorizes tow within 72 hours of being parked) and Sec. 22669-22671 (which let public agencies remove vehicles that are inoperative or abandoned on a highway). Reports go through the SoCo Connect platform or by calling Code Enforcement at (707) 565-1992; the Sonoma County Sheriff's Office handles street-side enforcement on unincorporated county roads, and the California Highway Patrol handles state highways. The Abandoned Vehicle Abatement Service Authority (AVASA) - a separate countywide JPA funded by a $1 annual DMV registration surcharge under CVC Sec. 9250.7 - reimburses participating cities and the County for abatement costs.
California Civil Code sections 4745 and 4745.1, plus Government Code 65850.7, create statewide rights for residents to install EV charging stations and require expedited local permitting that supersedes restrictive local rules.
Santa Rosa limits fence heights under Zoning Code Section 20-30.060. Front yard fences may not exceed 3 feet (or 4 feet if 50% open). Side and rear yard fences may be up to 6 feet. Heights above these limits require a Minor Use Permit.
Standard fences within height limits generally do not require a building permit in Santa Rosa. Fences exceeding 6 feet, retaining walls over 4 feet, or fences requiring a Minor Use Permit need approval.
Santa Rosa follows California Civil Code for boundary fences. Costs for boundary fences are shared equally between neighbors. Disputes may be resolved through mediation.
California's Swimming Pool Safety Act in Health and Safety Code Section 115920 mandates statewide drowning prevention barriers around residential pools, with cities prohibited from adopting weaker standards.
California Building Code under Title 24 universally requires permits and engineering for retaining walls over four feet measured from the bottom of the footing, applying statewide regardless of local variation.
Santa Rosa requires pool barriers per California Building Code. All residential pools must have a fence or barrier at least 5 feet high with self-closing, self-latching gates. Multiple layers of protection are required.
Santa Rosa follows California Health and Safety Code requirements for residential pools. Pools must have anti-entrapment drain covers, and at least two of seven approved safety features are required for new construction.
Above-ground pools in Santa Rosa must meet the same barrier and safety requirements as in-ground pools. Pools holding more than 18 inches of water require compliance with the California Building Code.
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.
Santa Rosa has FEMA-designated flood zones primarily along Santa Rosa Creek and its tributaries. Development in flood zones requires elevation certificates, flood insurance, and compliance with local floodplain management regulations.
Sonoma County operates under two separate Municipal Separate Storm Sewer System (MS4) NPDES permits - one issued by the North Coast Regional Water Quality Control Board for the Russian River basin and one by the San Francisco Bay Regional Water Quality Control Board for southern Sonoma County. Chapter 11 of the Sonoma County Code prohibits discharge of any pollutant (including muddy construction runoff) to the storm-drain system or waters of the state. Development and redevelopment projects must implement Low-Impact Development (LID) post-construction stormwater controls.
Sonoma County Code Chapters 11 and 11A require construction-grading permits and Erosion Prevention and Sediment Control plans for almost any ground-disturbing work. During the October 15 - May 15 wet season, no more than 1 acre or 20% of the permitted work area (whichever is greater) may have erodible soil exposed at any time, and best management practices (BMPs) must be functional whenever the National Weather Service forecasts a 30% or greater chance of rain within 24 hours - in any season. Sonoma's hillside and vineyard/orchard grading rules (Chapter 36 VESCO) add further restrictions on slopes over 10%.
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 Commission appeal jurisdiction over local decisions.
Unincorporated Sonoma County does not have a stand-alone juvenile-curfew ordinance applicable countywide. A 1997 proposal by the Board of Supervisors to impose an 11:00 p.m. weeknight and midnight weekend curfew on minors in unincorporated areas was debated but was not adopted as standing County code. Several Sonoma County cities have their own curfew ordinances (e.g., Santa Rosa Municipal Code Ch. 9-12, Petaluma Municipal Code 9.16, Sonoma Municipal Code), and California Welfare & Institutions Code Sec. 625.5 allows but does not require local curfew laws.
Sonoma County Regional Parks are open for day use 365 days a year from 7:00 a.m. to sunset, with parking lots and entry gates closing at sunset. Park policies are codified in Chapter 20 (Parks and Recreation) of the Sonoma County Code. Overnight stays are restricted to established campgrounds with reservations; amplified music is prohibited; alcohol is banned year-round at several specific parks (Larson Park, Healdsburg Veterans Memorial Beach, Guerneville River Park) and seasonally at Steelhead Beach, Sunset Beach, and Forestville River Access from Memorial Day through Labor Day.
Unincorporated Sonoma County does NOT have a local rent control ordinance. The 2024 Residential Tenancy Protections Ordinance (Ord. 6496) added eviction protections but did not adopt a local rent cap. The only annual rent-increase cap covering most Sonoma County tenants is California's statewide Tenant Protection Act (AB 1482), codified at Cal. Civ. Code § 1947.12, which limits increases to 5% + the regional CPI, with a 10% hard ceiling.
On September 17, 2024, the Sonoma County Board of Supervisors adopted Ordinance No. 6496, the Residential Tenancy Protections Ordinance, which applies to rental units in unincorporated Sonoma County. The ordinance augments the statewide California Tenant Protection Act (AB 1482, Cal. Civ. Code § 1946.2) by extending just-cause protections from day one of any covered tenancy, expanding coverage to income-restricted housing, narrowing the rent-nonpayment trigger, and increasing no-fault relocation payments.
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, with local rules limited to ground-based regulation.
Recreational drone flight in California is governed primarily by FAA regulations under 14 CFR Part 107 and 49 USC 44809, with state-level rules added by Civil Code 1708.8 and Government Code 853 applying uniformly statewide.
California sets a statewide minimum wage floor under Labor Code 1182.12, currently $16.50 per hour for all employers as of 2025. Local governments are not preempted and may set higher minimums; many cities exceed the state rate substantially.
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 or five days annually effective January 2024, applying universally.
California regulates concealed carry weapons licenses statewide under Penal Code 26150 through 26225. Senate Bill 2 (2023) imposes uniform sensitive-place restrictions and applicant standards, preempting local variations on issuance criteria and qualifications.
California preempts most local firearm regulation under Government Code 53071 and Penal Code 25605, reserving licensing, registration, and manufacture authority to the state. However, local governments retain limited authority over discharge, sensitive places, and zoning of gun businesses.
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 applies uniformly across all California cities and counties without local variation.
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 the vehicle's locked trunk; long guns must be unloaded but need not be locked.
California Retail Food Code (Health and Safety Code 113700-114437) sets uniform mobile food facility permit, equipment, and food safety standards enforced by counties statewide.
California's Safe Sidewalk Vending Act (SB 946) preempts most local bans on sidewalk vending, allowing only objective health, safety, and welfare regulations.
California prohibits state and local governments from requiring private employers to use the federal E-Verify system except where federal law mandates it, under Government Code 7285.1 and 7285.3. The restriction applies uniformly to every California city and county.
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 uniformly to every California agency and bars participation in most civil immigration enforcement.
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 for ten-year minimum terms in exchange for reduced property tax assessment based on farming income.
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 law applies statewide and limits both private and local government nuisance actions.
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 as Proposition 67 in 2016. Recycled paper or reusable bags require a 10-cent minimum charge.
California restricts expanded polystyrene food containers statewide through SB 54 (2022) packaging requirements under Public Resources Code 42040-42081. The law mandates that polystyrene foodware achieve 25 percent recycling by 2025 or face statewide sales prohibition.
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. The on-request rule applies uniformly to dine-in restaurants statewide.
Civil Code section 714 voids HOA covenants and rules that prohibit or unreasonably restrict residential solar energy systems, preempting private and local restrictions.
California's Solar Rights Act and the SolarAPP+ mandate (SB 379) require expedited permit review of small residential solar systems, preempting restrictive local processes.
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 applies uniformly across all California jurisdictions.
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 November 2022. The ban applies uniformly to all California retailers.
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 establishes uniform retailer licensing, while local governments may adopt stricter rules.