Fence Regulations in Petaluma, CA

If you live in Petaluma or are thinking about moving there, fence regulations are one of those things you probably won't think about until they affect you directly. Petaluma has 4 specific rules on the books covering different aspects of fence regulations, and some of them might surprise you.

Retaining Walls

Petaluma requires any retained embankment over 48 inches high to be stepped so no single exposed retaining wall exceeds 36 inches, with at least a 36-inch step between tiers. A retaining wall in a required front setback is capped at 3 feet 6 inches and limited to 5% of the setback area.

Key details: Embankment trigger: over 48 inches must be stepped. Max height per exposed step: 36 inches. Minimum step width: 36 inches. Front setback wall height cap: 3 ft 6 in. Front setback coverage cap: 5% of setback area.

A retaining wall that exceeds the 36-inch per-step limit, skips the required 36-inch step width, or exceeds 3 feet 6 inches and 5% front-setback coverage without City approval does not comply with Section 13.050, and the Community Development Department can deny or condition the fence permit required under Section 13.060 until the wall is reconfigured to meet these standards.

Fence Permit Requirements

No fence or wall may be installed or constructed in Petaluma without an approved fence permit from the Community Development Department. Applicants must submit a scaled plot plan and a dimensional detail showing materials and proposed height from existing and finished grade.

Key details: Permit required for: any fence or wall installed/constructed. Issuing agency: Community Development Department. Application must include: scaled plot plan. Also required: dimensional detail of materials, height. Approval standard: compliance with Chapter 13 provisions.

Installing or constructing a fence or wall without first obtaining an approved fence permit from the Community Development Department violates Section 13.060(A). The Director reviews every application against Chapter 13's location, height, and retaining-wall standards before approval, so an unpermitted fence, or one built to different dimensions than what was approved, is not in compliance and can be required to be brought into conformance or removed.

Material Restrictions

Petaluma Municipal Code Section 13.04.010 makes it unlawful to erect or maintain a barbed wire fence along any public street in the city, a ban that reaches every zoning district. The Implementing Zoning Ordinance carves out one narrow exception: up to one foot of vertical barbed wire on top of a fence in an Agricultural or Industrial district, with a fence permit, for outdoor storage or livestock uses.

Key details: General ban: No barbed wire fence along any public street. Governing section: PMC § 13.04.010. AG/I exception: 1 ft vertical barbed wire, permit required. Exception use test: Outdoor storage or livestock keeping only. Permit needed: Fence permit, Community Development Dept..

Erecting or maintaining a barbed wire fence along a public street without qualifying for the AG/I storage-or-livestock exception is a violation of the Municipal Code. Absent a section specifying its own penalty, Petaluma's general enforcement chapter classifies a code violation as a misdemeanor punishable by up to a $1,000 fine or six months in county jail, or the enforcing authority may instead charge it as an infraction.

This is not one of those rules that cities tend to ignore. Petaluma actively enforces its material restrictions requirements.

Height Limits

Petaluma caps fences and walls at 42 inches within a required front or street-side setback, and at 6 feet solid (plus 2 feet of at-least-50%-open screening) elsewhere on the lot. Fences are banned outright in the Floodway zoning district, and height is measured from ground grade to the top of the fence material.

Key details: Front/street-side setback: 42 inches maximum. Interior side/rear setback: 6 ft solid + 2 ft screening. Sight-visibility triangle: 42 inches maximum. Floodway district: no fences or walls permitted. Height measured from: ground grade to top of material.

A fence built taller than Table 13.1 allows, without an approved modification under Section 13.025, does not meet the zoning ordinance and the Community Development Department will not approve a fence permit for it under Section 13.060. The City can require the fence be lowered, altered or removed to bring it into compliance, and an unpermitted or oversized fence is enforced as a zoning violation under the Implementing Zoning Ordinance's enforcement chapter.

The Bottom Line

Petaluma's fence regulations rules are a mixed bag. Some areas are strict, others are relaxed, and the details matter. The best approach is to check the specific rule that applies to your situation rather than assuming Petaluma is broadly strict or permissive.

Keep in mind that Petaluma can amend these rules at any council meeting. For the most current version of any rule mentioned here, check the specific ordinance page, where we track updates as they happen.