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

Dublin does not have a dedicated garage sale sign ordinance; signs advertising a yard or garage sale are handled as temporary non-commercial signs under Chapter 8.84 of the Zoning Ordinance. Under the City's temporary sign guidance and Section 8.84.140(K), these signs are exempt from a sign permit but may be placed only on private property with the property owner's written permission. They may not be placed in the public right-of-way or attached to public property such as streets, sidewalks, utility poles, street trees, public fences, public open space, or parks. The maximum aggregate temporary non-commercial sign area is 80 square feet per lot. The City separately notes that A-frame (sandwich board) signs are portable signs that must be removed at the close of business each day. The underlying garage or yard sale is also regulated: the City's FAQ states that the temporary sale of used household or personal articles on the seller's own residential premises is permitted only if limited to two days per event and not conducted on the same lot more than four times within a calendar year. Larger banner advertising can require a Temporary Promotional Permit under Chapter 8.84. The practical takeaway: keep garage sale signs on private property with permission, take them down promptly after the sale, and stay within the two-day/four-times-per-year sale limits. Contact Code Enforcement at (925) 833-6620 with questions.