Historic Preservation in San Diego County, CA (2026)

1 county-level rule, plus city-specific rules for 7 cities in San Diego County, California.

Verified from official government sources

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

Historic-Cultural Monuments

San Diego County maintains a Local Register of Historical Resources under Administrative Code § 396.7, listing buildings, sites, structures, objects and historic districts that meet Board-reviewed significance criteria, but only with the property owner's written consent.

San Diego County Historic Resources Register

Light Restrictions

San Diego County Administrative Code § 396.7

(a) Authority. On August 14, 2002, the San Diego County Board of Supervisors approved the San Diego County Local Register of Historical Resources. This ordinance, which becomes effective on September 14, 2002, establishes a Local Register of Historical Resources for the County of San Diego, henceforth known as the Local Register.

Full ordinance details →Official source ↗