Union City, CA Home Business: Signage Rules (2026)

Home occupation signs advertising an approved home occupation conducted on the premises, provided that such sign shall be naturally illuminated, shall not exceed one and one-half (1-1/2) square feet in area, and shall be located flat against the wall or window of the dwelling.

J. Building marker signs provided that the sign only includes the building name, date of construction, or historical data on a historic site. The sign must be cut or etched into masonry, bronze or similar material. Such signs shall not exceed two square feet in area and shall be naturally illuminated.

K. Flags of the United States, the State of California, the City of Union City, foreign nations, and any other flag adopted or sanctioned by an elected legislative body of competent jurisdiction.

L. Political Signs. Temporary political signs provided that such signs comply with the following conditions:

1. Such signs shall not be allowed on sidewalks, street medians, public rights-of-way, public parks or other property, or where they may interfere with vehicular or pedestrian sight distance, nor shall they be affixed to utility poles, street signs or any public utility company or railroad property without the specific permission of the utility, railroad, or public agency;

2. Such signs shall be naturally illuminated;

3. Such signs shall be removed within 14 calendar days following the election.

M. Government-Owned Signs. Governmental signs, which are owned by the City.

N.