Nampa, ID Accessory Structures: Shed & Carport Rules (2026)
Shed permit rules in Nampa, ID, 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
- Permit-exempt size
- 200 sq ft or less
- Max accessory structure height (RS zone)
- 22 feet or house height
- Min distance from house (small sheds)
- 3 feet
- Max accessory structures per lot
- Two
Summary
In Nampa's RS residential zone, sheds over 200 square feet need a building permit and full setbacks; smaller sheds skip the permit but still follow siting rules.
Detached accessory structures over 200 square feet (201+) in footprint area shall comply with required front, side, and rear setbacks listed in subsection 10-8-5.A and require a building permit. C. Detached accessory structures 200 square feet or under and 12 feet or lower in height shall be built to no less than three feet from any primary structure wall (unless a building permit is obtained from the city to locate closer to the house)...E. ...there shall be no more than two accessory structures...
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 16 Update 1).
Full Breakdown
Nampa city code exempts one-story detached tool/storage sheds and playhouses under 200 square feet from a building permit (unless wired, plumbed, or heated). Zoning-wise, in the RS single-family district a shed over 200 square feet must meet the same front, side, and rear setbacks as the house and needs a permit; a shed at or under 200 square feet and 12 feet or lower must sit at least 3 feet from the house and still meet the district's setbacks. No more than two accessory structures are allowed per lot, and none may sit closer to the street than the house.
Violations & Fines
Building without a required permit or in violation of a setback is enforceable as a building code or zoning violation, subject to code enforcement action, fines, and a stop-work or correction order.
Frequently Asked Questions
Do I need a permit for a small backyard shed in Nampa?
How close to my house can a shed sit in Nampa's RS zone?
Sources & Official References
Other rules in Nampa
How Nampa compares: Shed Permit Requirements by City·Compare Nampa to another location·View the Idaho accessory structures overview
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