Building Setbacks & Zoning in Orange County, CA (2026)

3 county-level rules, plus city-specific rules for 9 cities in Orange County, California.

Verified from official government sources

Note: These county rules apply to unincorporated areas of Orange County. If you live within an incorporated city, that city's own rules apply — see the city list below.

Setback Rules

Building setbacks in unincorporated Orange County are set by each zoning district in Zoning Code Section 7-9-31.3 and related tables. In the common R1 single-family district, the front setback is 20 feet, side 5 feet, and rear 25 feet from the ultimate street right-of-way line. Other districts require larger yards.

Orange County Building Setback Rules

Some Restrictions

Full ordinance details →Official source ↗

Structure Height Limits

In unincorporated Orange County single-family districts, the maximum building height is 35 feet under Zoning Code Section 7-9-31.3. Accessory structures in a required setback are limited to 12 feet, or 8 feet within 3 feet of a property line. Limited rooftop projections and antennas may exceed the limit under Section 7-9-62.

Orange County Structure Height Limits

Some Restrictions

Full ordinance details →Official source ↗

Lot Coverage Limits

Maximum building site (lot) coverage in unincorporated Orange County is set by zoning district. Coverage is the ground-floor building area as a share of net development area, computed after deducting street rights-of-way and use-prohibiting easements, per Zoning Code Section 7-9-24.4. District tables set the percentage and exclude certain low decks, pools, and a small accessory structure.