Accessory Structures in Fresno County, CA (2026)

5 county-level rules, plus city-specific rules for 5 cities in Fresno County, California.

Verified from official government sources

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

ADU Rules

ADUs allowed in all Fresno County single-family residential zones per CA Gov Code §65852.2. One ADU + one JADU per SFR lot. SB 9 lot splits permitted in urban SFR zones.

accessory-structures/adu-rules

Few Restrictions

Full ordinance details →Official source ↗

Shed Rules

Sheds under 120 sq ft exempt from building permit per CA Residential Code §R105.2. Fresno County Title 18 requires compliance with setbacks and height limits regardless of permit.

accessory-structures/shed-rules

Few Restrictions

Full ordinance details →Official source ↗

Garage Conversions

Garage conversions to ADUs protected by CA §65852.2 — Fresno County cannot require replacement parking when converting a garage to ADU. Permit required from Building Division.

accessory-structures/garage-conversions

Few Restrictions

Full ordinance details →Official source ↗

Carport Rules

Carports in unincorporated Fresno County require building permit and must meet Title 18 setbacks. Front yard carports typically prohibited in residential zones.

accessory-structures/carport-rules

Some Restrictions

Full ordinance details →Official source ↗

Tiny Homes

Tiny homes on foundations regulated as ADUs under CA §65852.2. Tiny homes on wheels (THOWs) regulated as RVs — camping in RVs on residential property limited.