Porterville, CA Accessory Structures: Shed & Carport Rules (2026)
Shed permit rules in Porterville, 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 cumulative shed/accessory area
- 1,200 sq ft
- Max height
- 18 ft (up to 24 ft with stepback)
- Rear setback
- 4 ft (1 ft if alley-adjacent)
- Separation from main house
- 6 ft minimum
- Max detached structures per lot
- 2 unless approved
- Approver for exceptions
- Zoning Administrator
Summary
In the City of Porterville, a detached storage shed counts as a residential accessory structure under Municipal Code Section 301.01.B, capped at a cumulative 1,200 square feet and 18 feet in height, and set back at least 4 feet from the rear property line when it sits in the rear third of the lot.
B. Residential Accessory Structures. Residential accessory structures include any uses that are customarily related to a residence, including garages, greenhouses, storage sheds, studios, workshops, detached covered decks (i.e. a patio structure), detached uncovered decks and patios two and one-half (2.5) feet in height or greater, and similar structures. ... 3. Size. ... The floor area of detached accessory structures shall not exceed a cumulative floor area of one thousand two-hundred (1,200) square feet unless approved by the Zoning Administrator. ... 4. Height. ... The maximum height shall not exceed eighteen (18) feet. The Zoning Administrator may consider buildings exceeding eighteen (18) feet in height that are stepped back one (1) foot from the required side and rear setback lines for every foot of height above eighteen (18) feet up to twenty-four (24) feet. ... ... 6. Setbacks. When located in the rear one-third of a lot, detached accessory buildings shall not be located closer than four (4) feet to any rear property line.
Full Breakdown
Section 301.01.B treats a storage shed the same as a garage, greenhouse, workshop or studio: all of them count as residential accessory structures once they're detached from the house, along with any covered deck or an uncovered deck or patio two and a half feet or taller. Fences and low uncovered decks under that height are carved out and don't have to follow this section.
Size is capped cumulatively, not per building: Section 301.01.B.3 limits the total floor area of all of a lot's detached accessory structures combined to 1,200 square feet, and a property owner needs Zoning Administrator approval to go over that, with the accessory building never allowed to exceed the ground floor area of the main house or the lot's overall maximum coverage. Height tops out at 18 feet under Section 301.01.B.4, though the Zoning Administrator can approve a taller shed, up to 24 feet, if it steps back one extra foot from the side and rear setback lines for every foot of height above 18 feet.
Setbacks depend on where the shed sits: Section 301.01.B.6 requires at least 4 feet from the rear property line for a shed in the rear third of the lot, or just 1 foot if that rear line runs along an alley, and a shed still has to be separated from the main house by 6 feet and limited to two detached structures per lot unless the Zoning Administrator allows more.
Violations & Fines
A shed that pushes the lot's total accessory floor area over 1,200 square feet, or over 18 feet tall, without Zoning Administrator approval is a zoning violation Community Development can require be reduced, relocated or removed. A shed built closer than the required 4-foot (or 1-foot alley) rear setback, or closer than 6 feet to the main house, faces the same correction order on inspection or complaint.
Frequently Asked Questions
How big a storage shed can I build in my Porterville backyard?
How close to my back fence can I put a shed in Porterville?
Can my Porterville shed be taller than 18 feet?
Sources & Official References
Other rules in Porterville
How Porterville compares: Shed Permit Requirements by City·California rules heatmap·Compare Porterville to another location·View the California accessory structures overview
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