Dublin, CA Accessory Structures: Shed & Carport Rules (2026)
Shed permit rules in Dublin, 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
- Max height
- 15 feet for detached accessory structures
- Max combined size
- 1,000 sq ft on lots 5,000+ sq ft
- Exempt small shed
- 120 sq ft rear-yard structure, coverage-exempt
- Rear yard coverage cap
- 30% of required rear yard
- Beyond the cap
- Requires Conditional Use Permit
- Setback, tall structure, small lot
- 3 ft side, street-side and rear
Summary
Dublin caps detached accessory structures like sheds and garages at 15 feet in height and limits their combined square footage to 1,000 square feet on lots 5,000 square feet or larger under Dublin Municipal Code Chapter 8.40. A single 120-square-foot rear yard shed is exempt from lot coverage limits, and all accessory structures together may cover no more than 30 percent of the required rear yard.
3. Height. Detached accessory structures, unless specified otherwise in this Chapter, shall have a maximum height of 15 feet. Detached accessory structures in the Agriculture zoning district shall have a maximum height of 15 feet except for barns which may be 2 stories high if the upper story is designated only for storage of hay and agricultural supplies. ... d. Maximum square footage of detached accessory structures (excluding swimming pools) on a lot. One accessory structure in the Rear Yard with a maximum of 120 square feet shall be exempt from the Coverage Requirements. For lots 5,000 square feet in size or larger, the combined maximum square footage of all accessory structures on a lot such as a detached accessory garage, workshop, studio, or office shall not exceed 1,000 square feet unless a larger size is approved by the Zoning Administrator by means of a Conditional Use Permit. ... e. Rear Yard Coverage. The maximum coverage of the required Rear Yard by all accessory structures (with the exception of swimming pools) is 30%.
Official source re-checked September 8, 2026: no newer edition of the code had been published (publisher’s edition: current through Ordinance 2-26, passed March 3, 2026).
Full Breakdown
40 of the Dublin Municipal Code, Accessory Structures and Uses Regulations, sets the dimensional standards for sheds, detached garages, workshops and similar buildings across every zoning district in the city. 3 caps detached accessory structures at 15 feet in height citywide, with a narrow exception in the Agricultural district allowing two-story barns used solely for hay and agricultural-supply storage. d limits the combined square footage of detached accessory structures such as a garage, workshop, studio or office to 1,000 square feet on lots of 5,000 square feet or larger; anything larger requires a Conditional Use Permit approved by the Zoning Administrator.
e still caps the combined footprint of all accessory structures at 30 percent of the required rear yard. Setbacks scale with structure height and lot size: on lots under 5,000 square feet, an enclosed structure over 8 feet tall needs a 3-foot side, street-side and rear setback, while a shorter structure of 8 feet or less can sit against the side and rear property lines. On lots of 5,000 square feet or more the setback for a taller enclosed structure grows to 5 feet on all three sides.
No accessory structure, other than an entry feature, may stand in the front yard or ahead of the residence, and on a corner lot in an R-1 or R-2 district next to a Key Lot, nothing may sit closer than 10 feet to the street-side lot line. 136.
Violations & Fines
Building an oversized or unpermitted shed without the required Conditional Use Permit or Site Development Review is a zoning violation enforceable through Chapter 8.144, Enforcement, which lets the city issue a correction notice, cite the structure, and pursue abatement or citation if the violation is not resolved. Determinations by the Director of Community Development on whether a structure qualifies as an accessory use are appealable under Chapter 8.136, Appeals.
Frequently Asked Questions
Do I need a permit for a shed in Dublin, CA?
How tall can a shed or detached garage be in Dublin?
How close to my property line can I build a shed in Dublin?
Sources & Official References
Other rules in Dublin
How Dublin compares: Shed Permit Requirements by City·California rules heatmap·Compare Dublin to another location·View the California accessory structures overview
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