Fence Regulations in Sauk County, WI (2026)
3 rules for unincorporated Sauk County, Wisconsin.
Verified from official government sources
Height Limits
Sauk County Code § 7.100(3) caps solid fences and walls at four feet in a front yard or the street side yard of a corner lot, and at two and one-half feet inside a vision clearance triangle. A fence or wall taller than six feet is treated as a structure and must meet the county's ordinary setback and permit requirements.
Fence Height Limits in Sauk County
Some RestrictionsSauk County Code § 7.100
(3)Fences and walls. Solid fences and walls may be located as follows:(a)Solid fences and walls greater than 20 percent opacity and located in a vision clearance triangle shall not exceed 30 inches in height.(b)Solid fences and walls more than six feet in height shall be considered structures, subject to the requirements of this ordinance.(c)Solid fences and walls shall not exceed four feet in ...
Fence Permit Requirements
In unincorporated Sauk County, a routine fence needs no land use permit, but Section 7.153(3) treats any fence or wall more than 6 feet tall and more than 50 percent opaque as a structure, triggering the same land use permit and setback requirements that apply to any other structure in the county's zoning code.
Sauk County fence permit threshold
Some RestrictionsSauk County Code § 7.153(1), (3)
A land use permit is not a substitute for a building permit, which is instead issued by the affected town. ... (3)Exemptions. Unless otherwise required pursuant to the Sauk County Code of Ordinances, no land use permit is required for any accessory structure of 120 square feet of floor area or less or any wind tower less than 25 feet in height provided that such structure conforms with all appl...
Retaining Walls
Sauk County Code § 7.100(2) exempts retaining walls from yard setbacks entirely when the top of the wall sits six inches or less above the average grade of the abutting ground. Taller retaining walls lose that exemption and, once they exceed six feet, count as structures under § 7.100(3)(b), triggering the county's ordinary land use permit and setback rules.
Retaining Wall Rules in Sauk County
Light RestrictionsSauk County Code § 7.100
Sec. 7.100. - Structures permitted within setbacks. ... (2)Platforms, walks and drives. Platforms, walks, and drives extending not more than six inches above the average ground level at their margins, and retaining walls when the top of such walls are not more than six inches above the average level of abutting ground on one side, may be located in any yard as long as they meet all other portio...
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