Napa, CA Local Ordinances Guide

Napa, California may not be the biggest city in the state, but it has its own set of local rules that residents need to follow. With 22 tracked ordinances across 9 categories, there is more here than you might expect.

Fence Regulations

Neighbor Fence Rules: Napa's Municipal Code does not require neighbor consent to build a fence. Boundary fence cost-sharing follows California Civil Code Section 841, the Good Neighbor Fence Act, which presumes adjoining owners share equally in reasonable costs of construction and maintenance of a fence on the common boundary..

Swimming Pools & Spas

Fencing & Safety Requirements: Pool barriers in Napa follow California Health and Safety Code Sections 115921-115929 (the Swimming Pool Safety Act, as amended Jan 1, 2018) and California Building Code Section 3109. New or remodeled pools at single-family homes must have at least two of seven approved drowning-prevention safety features, and any pool enclosure must be at least 60 inches tall..

Also covered: Pool Permits (moderate). See the full swimming pools & spas guide for Napa for details.

Landscaping Rules

Water Restrictions: Water restrictions in the City of Napa are codified in Chapter 13.09 (Water Conservation Regulations) and Chapter 13.10 (Water Shortage Regulations) of the Municipal Code. Permanent rules prohibit irrigation between 10 a.m.

Also covered: Tree Trimming (limited), Weed Ordinances (moderate), Native Plants (moderate). See the full landscaping rules guide for Napa for details.

Rental Property Rules

Security Deposit Rules: Security deposits on Napa residential rentals are capped at one month's rent under California AB 12, effective July 1, 2024, codified at Civil Code Section 1950.5(c). A narrow small-landlord exception preserves a two-month cap for natural-person landlords owning two or fewer rental properties with no more than four total units.

Also covered: Just Cause Eviction (limited), Rent Control (permissive). See the full rental property rules guide for Napa for details.

Food Trucks & Mobile Vendors

Vending Zones: Mobile food vending in the City of Napa is shaped by three layers. Napa Municipal Code Section 10.36.180 restricts peddlers selling food from a vehicle, wagon, or pushcart in the public street to 15 minutes at any one site, with a 1,000-foot, 24-hour 'move-away' requirement.

Also covered: Food Truck Permits (limited). See the full food trucks & mobile vendors guide for Napa for details.

Sign Regulations

Political Signs: Political signs in the City of Napa are protected speech under the First Amendment and must be regulated content-neutrally under Reed v. Town of Gilbert, 576 U.S.

Animal Ordinances

Breed Restrictions: The City of Napa does not have a breed-specific dog ordinance and cannot enact one. California Food and Agricultural Code Section 31683 expressly preempts local breed bans: cities and counties may not adopt dog-control ordinances that are specific to any breed.

Also covered: Exotic Pets (moderate). See the full animal ordinances guide for Napa for details.

Fire Regulations

Wildfire Zones: Large portions of Napa, particularly the eastern hillsides above Coombsville and Alta Heights, the Silverado / Atlas Peak corridor, the Browns Valley / western hillsides, and the northern edges of the city, are mapped as Local Responsibility Area Very High, High, or Moderate Fire Hazard Severity Zones in the State Fire Marshal's February 2025 update. Designation triggers 100-foot defensible space, California Building Code Chapter 7A wildland-urban-interface construction standards, and Natural Hazard Disclosure at sale..

Also covered: Brush Clearance (moderate). See the full fire regulations guide for Napa for details.

Parking Rules

Street Parking Limits: On-street parking in Napa is governed by Napa Municipal Code Chapter 10.36 (Stopping, Standing and Parking) together with the California Vehicle Code. The City does not impose a citywide overnight ban on residential streets, but standard prohibitions apply: no parking in red, yellow, white, blue, or green curb zones; no blocking driveways or fire hydrants; no parking on sidewalks; no parking on a grade over 3% without blocking the wheels (NMC §10.36.170); and no parking longer than 72 hours (NMC §10.36.090).

Also covered: Overnight Parking (strict), Abandoned Vehicles (moderate), EV Charging (moderate). See the full parking rules guide for Napa for details.

What to Do With This Information

Think of this as a map of the regulatory landscape in Napa. For any rule that directly affects a decision you are making, click through to the full ordinance page for penalty details and exceptions, and confirm with the city if the stakes are high.