Sun Prairie, WI Fence Regulations: Height Limits (2026)
Key Facts
- Rear/Side Yard Maximum
- 6 ft
- Street Yard / Front (within 20 ft of ROW)
- 4 ft maximum
- Street Yard Setback
- Minimum 2 ft from front property line
- Side/Rear Property Line Setback
- May sit on the property line
- Corner Lot 6-ft Side Yard Fence
- Allowed only with administrative Special Use Permit
- Finished Side
- Must face outward; posts on inside
- Prohibited Materials
- Barbed wire, razor wire, electric wire
- Front Yard Materials
- Chain link and wire mesh prohibited
- Permit
- Building permit required (Building Inspection Division)
- Local Code
- Sec. 17.36.200, Title 17 Zoning
- State Authority
- Wis. Stat. §62.23, Chapter 90
Summary
Sun Prairie regulates fences under Title 17 (Zoning), Section 17.36.200 of the Municipal Code. Residential fences may not exceed six (6) feet in height, except within twenty (20) feet of a street yard property line, where the maximum is four (4) feet. Fences along side and rear lot lines may sit on the property line, but must be set back at least two (2) feet from the street yard (front) property line. A building permit issued by the Sun Prairie Building Inspection Division (300 E. Main Street) is required prior to installation, and a final inspection verifying location, height, and materials is mandatory.
The maximum height is 6 feet for rear yards and side yards. The maximum height is 4 feet for required front yards and street yards. Fences may be located on the rear or side property lines, but no closer than 2 feet to the front or street yard property lines (right of way). Chain link or wire mesh materials cannot be used in front yards or street yards, and the decorative side must face outward with supporting members on the interior.
Official source re-checked September 7, 2026: the cited page had not changed since it was quoted.
Full Breakdown
Sun Prairie's fence regulations are part of Title 17 of the Municipal Code (the Zoning Ordinance), adopted under the authority of Wis. Stat. Sec. 23 (city planning and zoning). 200 sets the residential fence standards. The maximum height of any residential fence, landscape wall, or decorative post is six (6) feet, except where located within twenty (20) feet of a street yard property line, in which case the maximum height is four (4) feet. Fences may be located on any property line abutting a side or rear yard, and must sit a minimum of two (2) feet from the street yard property line (right-of-way).
For corner or double-frontage residential lots, a six-foot fence may be placed within twenty feet of a street yard property line on the side yard with administrative approval of a special use permit (SUP), provided the fence is set back to allow landscaping on the external side and the additional height does not obstruct vision at intersecting streets, driveways, sidewalks, or other traffic. The decorative or finished side of the fence must face outward, with supporting members and posts on the inside. Permitted materials include brick, stone, wood, wrought iron, vinyl, chain link (rear/side yards only), and wire mesh (rear/side yards only); barbed wire, razor wire, and electric wire are prohibited, and chain link and wire mesh are not permitted in front or street yards.
A building permit application (filed via the city's ViewPoint portal) and a scaled site plan showing lot lines, easements, fence location, and buildings are required. Subdivision properties may also need HOA approval. Wisconsin's partition-fence statutes (Wis. Stat. Chapter 90) also apply to shared boundary fences between adjoining owners.
Violations & Fines
Constructing a fence taller than the 6-ft (rear/side) or 4-ft (street yard) limits, encroaching within the 2-ft street-yard setback, using prohibited materials (barbed wire, razor wire, electric wire, or chain link/wire mesh in front yards), or installing a fence without a building permit can trigger municipal enforcement by the Building Inspection Division. Owners may be ordered to remove or modify the fence and may face citations and forfeitures prosecuted in Dane County Circuit Court. A required final inspection that fails (for incorrect location, height, or materials) must be corrected before the permit is closed.
Frequently Asked Questions
How tall can my backyard fence be in Sun Prairie?
Can I put a 6-foot fence along my front yard?
Do I need a permit for a fence in Sun Prairie?
Sources & Official References
Other rules in Sun Prairie
How Sun Prairie compares: Cities That Allow the Tallest Residential Fences·Compare Sun Prairie to another location·View the Wisconsin fence regulations overview
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Height Limits in Nearby Cities
How other cities in Dane County handle height limits.