San Diego County, CA Accessory Structures: Shed & Carport Rules (2026)
Shed permit rules in San Diego County, CA, also referred to as storage shed, backyard shed, or accessory building regulations, set size limits, setbacks, and when a building permit is required.
Key Facts
- Wall setback
- 3 ft from side/rear lot lines
- Eave setback
- 2 ft from side/rear lot lines
- In-setback size cap
- 1,000 sq ft combined structures
- Governing law
- Zoning Ordinance § 4842(a)
- Enforcement
- PDS; misdemeanor or infraction (§7703)
Summary
Detached carports in unincorporated San Diego County must sit at least 3 feet from interior side and rear lot lines at the walls and 2 feet at the eaves, under the county Zoning Ordinance.
SETBACKS FOR DETACHED ACCESSORY BUILDINGS AND STRUCTURES. a. No detached accessory building shall be located with walls closer than 3 feet or eaves closer than 2 feet from interior side or rear property lines. b. No detached accessory building authorized by Section 6156.g exceeding 1,000 square feet in area shall be located within a required setback pursuant to Section 4810.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: 2026 S-141: Administrative: Current through Ord. No. 11007 (N.S.), effective 7-10-26 | Regulatory: Current through Ord. No. 11008 (N.S.), effective 7-24-26).
Full Breakdown
San Diego County's Zoning Ordinance defines a carport as a roofed structure open on two or more sides used to park vehicles (§1100-1199 Definitions). Detached carports built under §6156.g must sit at least 3 feet from interior side and rear lot lines at the walls, and at least 2 feet at the eaves, per §4842(a); any portion inside the required setback is capped at 1,000 square feet combined with other detached accessory structures. A garage may intrude into the front-yard setback only on a qualifying sloped lot under §4837. This applies only in the unincorporated county: the City of San Diego and the county's 17 other incorporated cities enforce their own codes.
Violations & Fines
Violating these setbacks is a Zoning Ordinance offense under §7703: a misdemeanor (up to 6 months jail, $1,000 fine) or, at the prosecutor's discretion, an infraction with fines up to $500 per repeat violation.
Frequently Asked Questions
Can I build a carport right up to my property line in unincorporated San Diego County?
Does this setback rule apply inside the City of San Diego?
How big can a detached carport be?
Sources & Official References
Other rules in San Diego County
How San Diego County compares: Shed Permit Requirements by City·California rules heatmap·Compare San Diego County to another location·View the California accessory structures overview
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