Brentwood, CA Sign Regulations: Garage Sale Signs (2026)

Garage sale signage in Brentwood falls under the temporary sign provisions of Municipal Code Chapter 17.610. A homeowner conducting a garage or yard sale may post one or more small directional signs on private property (typically 3 to 4 square feet maximum each) during the dates of the sale only. Signs on the public right-of-way, including grass parkway strips between the sidewalk and curb, medians, utility poles, street-name signs, and stop signs, are strictly prohibited and subject to removal without notice. Attaching anything to a public pole also violates California Streets and Highways Code section 1460 and, for tampering with official signs, Vehicle Code 21464. Signs must be removed no later than the day the sale ends; leaving weathered garage-sale signs up past the sale is a common code enforcement complaint and can lead to citations. Brentwood does not require a permit for a private residential garage sale of household items, but see the garage-sales frequency entry for limits on how many sales per year. Signs on neighbors' private property with permission are allowed under the same size and duration rules. Commercial-looking directional signs with arrows on corrugated plastic H-stakes placed throughout neighborhoods to funnel traffic are routinely removed by Public Works, so post only at the sale location and at the end of your own driveway.