What Santa Rosa Regulates: A Complete Ordinance Overview

Santa Rosa is a mid-sized city in Sonoma County, California, with about 178000 residents. Like most cities its size, it has a set of local rules that may differ significantly from neighboring municipalities. Here is an overview of 47 ordinances across 11 categories that affect daily life in Santa Rosa.

Home Business

Zoning Restrictions: Under Santa Rosa Zoning Code Section 20-42.070, a home occupation is allowed in any residential zone only when it is clearly secondary to the primary residential use and will not change the residential character of the neighborhood. Several specific uses - including auto repair, kennels, pet grooming, animal hospitals, bee keeping, weapons or ammunition sales, welding shops, and woodworking or metal shops - are categorically prohibited as home occupations..

Also covered: Customer Traffic Restrictions (moderate), Home Occupation Permits (moderate), Signage Rules (strict). See the full home business guide for Santa Rosa for details.

Noise Ordinances

Construction Hours: 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.

Also covered: Quiet Hours (moderate), Barking Dogs (moderate). See the full noise ordinances guide for Santa Rosa for details.

Environmental Rules

Flood Zones: 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..

Animal Ordinances

Dog Leash Laws: 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..

Also covered: Pet Limits (moderate), Breed Restrictions (moderate), Chickens & Livestock (moderate). See the full animal ordinances guide for Santa Rosa for details.

Short-Term Rentals

Permit Requirements: Santa Rosa requires a Short-Term Rental (STR) Permit for every property rented for less than 30 consecutive days. The City is no longer accepting new Non-Hosted applications; only Hosted STRs (where the owner's principal residence is on-site) are available to new applicants..

Also covered: Insurance Requirements (permissive), Occupancy Limits (strict), Noise Rules (strict). See the full short-term rentals guide for Santa Rosa for details.

Accessory Structures

ADU Rules: Santa Rosa allows one ADU plus one JADU on single-family lots under Zoning Code Section 20-42.130, adopted by urgency Ordinance on March 3, 2020 to align with California Government Code Sections 65852.2 and 65852.22. Detached ADUs are capped at 1,200 sq ft with 4-ft side/rear setbacks and a 16-ft (one-story) or 27-ft (two-story) height limit; JADUs are capped at 500 sq ft and must sit entirely within the existing single-family dwelling walls..

Also covered: Carport Rules (moderate), Garage Conversions (permissive), Shed Rules (moderate). See the full accessory structures guide for Santa Rosa for details.

Fire Regulations

Brush Clearance: Santa Rosa's Hazardous Vegetation and Fuels Management Ordinance (ORD-2023-016, City Code Ch. 9-32) requires defensible space on every property in the Wildland-Urban Interface Fire Area (about 9,000 parcels), with specific tree-limbing, hazardous-vegetation removal, and a 5-foot ember-resistant zone.

Also covered: Fireworks (strict), Backyard Fires (strict), Outdoor Burning (strict). See the full fire regulations guide for Santa Rosa for details.

Fence Regulations

Height Limits: Santa Rosa Zoning Code Section 20-30.060 caps residential fences at 36 inches within the front-yard or exterior-side setback, and 6 feet within an interior-side or rear-yard setback. A 6-foot fence with 2 feet of lattice (8 feet total) is allowed by right outside the front/street-side setback, but any fence over 7 feet requires a Building Permit..

Also covered: Material Restrictions (moderate), Approved Materials (permissive), Permit Requirements (moderate). See the full fence regulations guide for Santa Rosa for details.

Parking Rules

Commercial Vehicle Restrictions: Santa Rosa City Code Chapter 11-28 prohibits parking any commercial vehicle, truck, or trailer over 10,000 pounds GVWR on any street within a residence or business district, except during active loading/unloading on the same block. Overnight parking (2 a.m.

Also covered: Overnight Parking (moderate), Street Parking Limits (moderate), RV & Boat Parking (strict). See the full parking rules guide for Santa Rosa for details.

Swimming Pools & Spas

Fencing Requirements: Santa Rosa enforces California Building Code Section 3109 and Health and Safety Code Section 115921-115922. Any pool enclosure used as a drowning-prevention feature must be at least 60 inches high, have gates that open away from the pool, and be self-closing and self-latching..

Also covered: Pool Permits (moderate), Safety Rules (strict), Above-Ground Pools (moderate). See the full swimming pools & spas guide for Santa Rosa for details.

Landscaping Rules

Water Restrictions: 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..

Also covered: Tree Trimming (moderate), Grass Height Limits (moderate), Tree Removal & Heritage Trees (strict). See the full landscaping rules guide for Santa Rosa for details.

What to Do With This Information

If you are moving to Santa Rosa, buying a home, or starting a project, use this as a starting point. Each category links to detailed pages with the full text, penalties, and FAQs. Verify anything time-sensitive with Santa Rosa's city hall or code enforcement office.