Downey Permit Requirements Rules (2026): What You Need to Know

Downey's Building and Safety Division and Planning Division jointly administer fence permit requirements. For residential properties, fences and block walls up to 42 inches in height measured from finished grade are exempt from a building permit. However, even permit-exempt fences must comply with zoning requirements and may require Planning Division approval, particularly in front yards and on corner lots.

Fences and walls exceeding 42 inches require a permit from the Building Division. The permit process involves plan submission, plan check, and approval from the Planning Division (for zoning compliance) and the Engineering Division (for drainage and structural impact). Masonry walls and block walls over 4 feet in height typically must be accompanied by engineered structural plans stamped by a licensed California engineer. Commercial fencing projects require sign-off from four city departments: Planning, Building, Fire, and Engineering.

Residential fence height is measured from the existing or finished grade, except in front or street side yards where it is measured from the top of the nearest street curb elevation. When adjoining lots have different grades, height is measured from the higher side at the fence location. In commercial zones (C-2, C-3, and C-M), outdoor storage areas must be screened by solid masonry walls or opaque ornamental fences at least 7 feet tall; chain-link fences are not permitted in those zones. Permits are issued at the Building counter, City Hall, 11111 Brookshire Avenue, Monday through Friday 7:30 AM to 5:30 PM. Plan submittals must be received by 4:30 PM.