San Ramon, CA Sign Regulations: Garage Sale Signs (2026)

Garage sale signs in San Ramon are treated as temporary non-commercial signs under content-neutral sign regulations. The rules: (1) signs may be placed only on private property with the owner's permission; (2) each sign may not exceed 6 square feet in area; (3) signs must be installed during the sale and removed within 24 hours after the sale ends; (4) no more than 2-3 signs per sale; (5) signs may not be placed in the public right-of-way, on public property, on traffic signs, utility poles, trees, medians, or street furniture - Public Services removes such signs without notice and without storing them for retrieval. Proliferation of off-premises garage sale signs is a primary blight concern and the city actively enforces removal on weekends. Repeat violators can be cited administratively, and the property owner hosting the sale can be held responsible for signs posted on their behalf. Directional arrows are permitted on private lots with consent but may not be placed in right-of-way. Some HOAs further restrict signs to the host property only. Under California Vehicle Code 21466.5, signs placed so as to be visible from state highways that imitate or interfere with traffic control devices are prohibited and can be cited by law enforcement. Best practices: use a high-visibility sign on your own lawn, list on Nextdoor/Craigslist/Facebook Marketplace for wayfinding, and remove all signs by Sunday evening.