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

3 county-level rules, plus city-specific rules for 10 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

Unincorporated Orange County sets minimum front, side, and rear yard setbacks by zoning district in Table 7-9-61.9, ranging from 10-foot fronts in RS zones to 45-foot fronts in E1 estate zones.

Orange County Yard Setback Minimums by Zone

Some Restrictions

Orange County Codified Ordinances § 7-9-61.9

AGRICULTURAL, ESTATES AND RESIDENTIAL DISTRICTS ... District Front Side Rear Side Rear Property Line ... A1 20 5 25 5 25 or D 10 ... R1 20 5 25 5 25 or D 10 ... E1 45 20 50 20 50 or D 10 ... RS 10 10 10 C 0 10

Full ordinance details →Official source ↗

Structure Height Limits

Homes in unincorporated Orange County's single-family districts, AR, E1, RHE, E4, RE, R1 and RS, are all capped at 35 feet, measured from finished grade, with narrow exceptions for antennas, chimneys and architectural features.

Orange County Residential Height Limit: 35 Ft

Some Restrictions

Orange County Codified Ordinances § 7-9-31.3

Standard AR E1 RHE E4 RE R1 RS Additional Standards. BUILDING HEIGHT AND SITE REQUIREMENTS. Maximum Building Height (ft) 35 35 35 35 35 35 35 Per section 7-9-61.2. Accessory structure within required setback areas shall be limited to 12 ft. in height; if within 3 ft. of the property line, it shall be limited to 8 ft. in height

Full ordinance details →Official source ↗

Lot Coverage Limits

In unincorporated Orange County, single-family zoning districts AR, E1, RHE, E4, RE and RS cap building site coverage at 35 percent of the lot; R1 carries no numeric maximum under the zoning code's site development standards.