Kenosha County, WI Accessory Structures: Shed & Carport Rules (2026)
Shed permit rules in Kenosha County, WI, 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 threshold
- >150 sq ft or >15 ft needs a permit
- Setback (lots ≤39,999 sq ft)
- 5 ft side/rear (10 ft in R-9/10/11)
- Setback (lots ≥40,000 sq ft)
- 10 ft side and rear
- Height by size
- 15 ft up to 720 ft up to 24 ft
- Location
- Side or rear yard only
- Excluded districts
- C-1 Lowland Conservancy, FPO Floodplain Overlay
- Enforcing agency
- Division of Planning Operations
Summary
In unincorporated Kenosha County towns, any accessory building bigger than 150 square feet or taller than 15 feet needs a zoning permit under Section 12.17.010; side and rear setbacks run 5 to 10 feet depending on lot size, and height climbs from 15 to 24 feet as building footprint grows, per Sections 12.17.070 and 12.17.080.
No accessory building shall hereinafter be located, directed, moved, reconstructed, extended, enlarged, converted or structurally altered without a zoning permit from the Division of Planning Operations and without being in conformity with the provisions of this Ordinance, and State Statutes and the Wisconsin Administrative Code. The accessory building shall also meet all the structural requirements of local and State codes. ... (b) A minimum 5-foot side and rear yard setback on lots equal to or less than 39,999 square feet, unless zoned R-9, R-10 or R-11 in which case the setback shall be 10 feet. (c) A minimum 10-foot side and rear yard setback on lots equal to or greater than 40,000 square feet. ... (a) A maximum height of 15 feet for buildings (shed, gazebos, pool house) equal to or less than 150 square feet.
Official source re-checked September 8, 2026: no newer edition of the code had been published (publisher’s edition: current through Ordinance 37 (2026), passed March 17, 2026).
Full Breakdown
010 requires a zoning permit from the Division of Planning Operations before any accessory building is "located, directed, moved, reconstructed, extended, enlarged, converted or structurally altered," and the structure must also meet all state and local building codes. 020(f) removes small sheds from the permit-application step: structures of 150 square feet or less and no more than 15 feet tall don't need to apply, but they still must meet the district's yard setbacks. 070: a 5-foot side and rear setback applies on lots up to 39,999 square feet (10 feet if the parcel is zoned R-9, R-10 or R-11), rising to a flat 10-foot setback on lots of 40,000 square feet or more, plus a minimum 10-foot separation between all buildings and structures.
080 is tied to floor area: 15 feet for buildings up to 150 square feet, 17 feet up to 720 square feet, 20 feet up to 3,000 square feet, and 24 feet beyond that. 020). 120 table, which also caps most residential lots at one shed under 150 square feet plus one larger accessory building.
Violations & Fines
Building or enlarging an accessory structure without the required permit, or outside the permitted size, setback or height limits, exposes the owner to the ordinance's general penalty under Section 12.53.010: a forfeiture of $10 to $500 per violation plus prosecution costs, with each day the violation continues counted separately, and unpaid forfeitures defaulting to up to 30 days in the county jail. The Division of Planning Operations can also refuse to issue the required certificate of compliance until the shed is brought into conformity.
Frequently Asked Questions
Do I need a permit for a small backyard shed in Kenosha County?
How far must a shed sit from my property line?
How tall can a detached shed be?
Can I put a shed in my front yard?
Sources & Official References
Other rules in Kenosha County
How Kenosha County compares: Shed Permit Requirements by City·Compare Kenosha County to another location·View the Wisconsin accessory structures overview
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