Sign Regulations in Santa Rosa, CA

Santa Rosa maintains 153 local ordinances across all categories, and 4 of those deal specifically with sign regulations. Here is a breakdown of what the city actually requires, what is prohibited, and where Santa Rosa falls on the strict-to-permissive spectrum compared to other cities.

Window Signs

Santa Rosa caps permanent window signage at 20 percent of a window's total area under City Code Section 20-38.070(Q), and confines those signs to ground-level and second-story windows. Temporary window signs get a separate, tighter allowance: no more than 10 days at a time, and only in ground-floor windows.

Key details: Permanent window sign cap: 20% of window area. Allowed floors: Ground level and 2nd story only. Temporary window sign limit: 10 days maximum. Temporary sign location: Ground-floor windows only. Governing section: City Code § 20-38.070(Q).

Window signage exceeding the 20 percent permanent-sign area cap, placed above the second story, or a temporary sign left up beyond 10 days is an unlawful sign under Chapter 20-38. Violations are enforced by the Director and Code Enforcement, and the general Code penalty in Section 1-28.010 makes a first infraction punishable by up to $250 and a repeat offense within a year up to $500.

Garage Sale Signs

Santa Rosa lets a homeowner post one garage sale sign at the sale address, up to four square feet, without a Sign Permit under City Code Section 20-38.040(F). That exemption is narrow: it covers only a sign at the residence itself, and the City's separate ban on affixing signs to poles, trees, or posts on public property still applies to directional garage-sale signs.

Key details: Signs allowed without permit: One, at the sale address. Maximum size: 4 square feet. Off-site pole/tree postings: Prohibited public nuisance. Per-sign violation: Each posted sign a separate offense. Governing section: City Code § 20-38.040(F).

A garage sale sign exceeding four square feet, more than one at the residence, or affixed to a public pole, tree, or street sign is unlawful. Off-site or public-property postings are prosecuted as an infraction with each separately posted sign counted as its own violation; general Code violations otherwise carry infraction fines up to $250 for a first offense and up to $500 for a repeat offense within a year under Section 1-28.010.

If you are coming from a city with tighter rules, you will find Santa Rosa gives residents more flexibility on garage sale signs.

Digital Billboards

Santa Rosa prohibits electronic reader boards, flashing signs, and any sign with digitally created content citywide under City Code Section 20-38.090(C), along with windblown signs like light-bulb strings and inflatables. The only carve-outs are time-and-temperature displays, digital gas-price signs, digital drive-thru menu boards, and government safety signage.

Key details: Banned: Electronic reader boards, LED, flashing signs. Also banned: Windblown signs, light strings, inflatables. Exceptions: Time/temp, gas prices, drive-thru menus, govt signs. Governing section: City Code § 20-38.090(C). Related ban: Off-site billboards, § 20-38.090(E).

Installing or operating a prohibited electronic, flashing, or windblown sign is unlawful under Chapter 20-38, subject to a Director's order to remove or bring the sign into compliance. General Code penalties under Section 1-28.010 apply: an infraction carries up to $250 for a first offense and up to $500 for a repeat offense within a year, or the City Attorney may charge a misdemeanor punishable by up to $1,000 and six months in jail.

This is one of the stricter rules in Santa Rosa's municipal code. If you are unsure whether your situation complies, it is worth checking with the city before proceeding.

Freeway-Facing Signs

Santa Rosa flatly bans signs primarily oriented toward freeways and highways under City Code Section 20-38.090(D), requiring signage instead to face local streets and business entrances. The rule applies citywide and works alongside the separate ban on off-site billboards in subsection (E).

Key details: Rule: Freeway/highway-oriented signs banned. Required orientation: Local streets, business entrances. Related ban: Off-site billboards, § 20-38.090(E). Governing section: City Code § 20-38.090(D). Enforcement: Director may order reorientation/removal.

A sign erected or maintained in a primarily freeway-facing orientation is unlawful under Section 20-38.090(D), and the Director can require it be reoriented or removed as part of Chapter 20-38 enforcement. General Code penalties under Section 1-28.010 apply to violations charged as infractions: up to $250 for a first offense and up to $500 for a second offense within a year.

This is one of the stricter rules in Santa Rosa's municipal code. If you are unsure whether your situation complies, it is worth checking with the city before proceeding.

The Bottom Line

Santa Rosa is tougher than many cities when it comes to sign regulations. Out of the 4 rules covered here, 2 are rated strict. If you are a homeowner, renter, or business owner in Santa Rosa, take the time to understand these requirements before they become a problem. Most violations come with fines, and some repeat violations can escalate.

Keep in mind that Santa Rosa 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.