Fence Regulations in Union City, CA (2026)
7 verified fence regulations for Union City, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
Height Limits
Union City limits fences to 3 feet within front and exterior/street side setbacks and 6 feet in rear and interior side yards. Up to 8 feet is allowed where a yard abuts qualifying uses such as a flood control channel, railroad, school, or major arterial.
Union City Fence Height Limits
Some RestrictionsPermit Requirements
No permit is required for walls, fences, or hedges under 7 feet measured from grade. A building permit is required for fences over 7 feet, and for any gate on a multi-family lot that crosses a driveway, fire lane, or sidewalk access.
Union City Fence Permit Requirements
Few RestrictionsNeighbor Fence Rules
Fences and walls must aesthetically complement the yard and be compatible with neighboring yards, fences, and structures. Where an 8-foot fence adjoins a lower fence, it must step or slope down to match the adjoining height or 6 feet, whichever is greater.
Union City Fence Neighbor Rules
Some RestrictionsRetaining Walls
A fence on top of a retaining wall is allowed only when the combined height of wall plus fence does not exceed the applicable fence height limit in UCMC 18.32.040(A). Exposed exterior retaining wall faces must be architecturally treated.
Union City Retaining Wall Rules
Some RestrictionsFence Requirements
Fences and walls may be placed anywhere on a lot, subject to setback and height limits, and must aesthetically complement the yard and neighboring properties. Multi-family access gates must meet ADA and Fire Department requirements.
Union City Fence Requirements
Some RestrictionsMaterial Restrictions
Fences and structures intended to exceed 3 feet above grade may not use metal, plastic, or similar materials. Acceptable materials are limited to natural materials such as wood, masonry, and earth materials.
Union City Fence Material Restrictions
Some RestrictionsApproved Materials
Acceptable fence materials are natural materials such as wood, masonry, and earth. Fences and walls must aesthetically complement the yard and be compatible with neighboring yards, fences, and structures.
Union City Fence Material Standards
Some RestrictionsLooking for Alameda County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Union City city rules.
Fence Regulations in Alameda County →