How San Ramon Handles Sign Regulations: A Practical Guide

San Ramon maintains 131 local ordinances across all categories, and 5 of those deal specifically with sign regulations. Here is a breakdown of what the city actually requires, what is prohibited, and where San Ramon falls on the strict-to-permissive spectrum compared to other cities.

Political Signs

Political signs are strongly protected under the First Amendment and Civil Code 4710. San Ramon may not regulate them more strictly than other non-commercial signs and cannot ban them. HOAs also cannot ban political signs, though reasonable size and duration rules (posted 90 days before election, removed 15 days after) are enforceable.

Key details: Note: First Amendment and Civil Code 4710 protect political signs. Note: HOAs cannot ban, but can cap size around 9 sq ft. Note: Typical duration: 90 days before, 15 days after election. Permit/License: No city permit required for residential signs. Note: Public right-of-way signs removed regardless of message.

Freeway-Facing Signs

San Ramon prohibits free-standing signs, window signs, and for-sale/rent/lease signs of any type that are designed, oriented, or placed for freeway exposure and visible from the freeway or an on- or off-ramp, under Sign Ordinance Section D3-50(C). The ban applies regardless of the sign's zone or business type.

Key details: Prohibited signs: free-standing, window, and for-sale/rent/lease signs. Trigger: designed/oriented/placed for freeway exposure. Visible from: freeway or freeway on/off-ramp. Governing section: Municipal Code D3-50(C). Related ban: off-site signs/billboards also prohibited (D3-50(F)).

A free-standing, window, or real estate sign that is designed or oriented for freeway visibility violates Section D3-50(C) regardless of the underlying business's zoning approval, and the City can require it be removed or reoriented so it is no longer visible from the freeway or its ramps.

Compared to other cities, San Ramon takes a harder line on freeway-facing signs. The enforcement and penalty structure reflects that.

Window Signs

San Ramon caps window signs, including exempt ones, at 20 percent of a tenant's total window area for each wall, under Zoning Code Section D3-47(B). Signs must also avoid blocking the lower third of the window so police and private security can see inside during patrol.

Key details: Window sign cap: 20% of tenant's window area per wall. Sightline rule: lower third of window must stay clear. Incidental sign exemption: letters up to 3 inches, counts toward cap. Temporary promo signs: up to 21 days per calendar quarter. Governing section: Municipal Code D3-47(B).

A tenant whose permanent or exempt window signage together covers more than 20 percent of a wall's window area, or whose signs obscure the lower third of the window from outside view, is out of compliance with Section D3-47(B) and can be required to remove or resize the signage to meet the cap and maintain the required sightline.

Garage Sale Signs

San Ramon exempts garage sale signs from a sign permit, but only within tight limits: one sign on the property holding the sale and up to four off-site signs on other private properties, each no larger than 6 square feet and 3 feet in height or width, displayed only from 7 a.m. to 4 p.m. on sale days.

Key details: On-site signs allowed: 1 per sale. Off-site signs allowed: up to 4. Max sign size: 6 sq ft. Max height/width: 3 feet. Display hours: 7:00 a.m. to 4:00 p.m., sale days only.

A garage sale sign larger than 6 square feet, taller or wider than 3 feet, posted outside the 7 a.m. to 4 p.m. window, or exceeding the one on-site/four off-site count, loses its permit exemption under Section D3-45(I) and becomes an illegal sign the City can require the resident to remove.

Holiday Displays

San Ramon lets residents and businesses put up holiday lights without a sign permit, but only for a set window: no sooner than 45 calendar days before the holiday and taken down within 14 calendar days after, under Section D3-45(L). The exemption covers only non-advertising holiday lights and similar devices.

Key details: Earliest install: 45 calendar days before the holiday. Removal deadline: 14 calendar days after the holiday. Advertising: not allowed under this exemption. Permit required: none, if within the window. Governing section: Municipal Code D3-45(L).

Holiday lights put up more than 45 days before the holiday, left up more than 14 days after, or used to advertise a product or sale lose the Section D3-45(L) exemption; the display then needs a sign permit and must meet the general Chapter IV standards, and the City can require it be taken down or brought into compliance.

The rules around holiday displays in San Ramon lean permissive, but that does not mean anything goes.

The Bottom Line

San Ramon's sign 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 San Ramon is broadly strict or permissive.

All of the above reflects San Ramon's municipal code as of our last review. If you need specifics on fines, exemptions, or filing requirements, the detailed ordinance pages linked above have the full breakdown.