Building Setbacks & Zoning in Grant County, WI (2026)
3 rules for unincorporated Grant County, Wisconsin.
Verified from official government sources
Setback Rules
In unincorporated Grant County, Wisconsin, every building and structure in the shoreland must sit at least 75 feet from the ordinary high-water mark of any navigable water unless an exemption or reduction applies. A new principal structure can use an averaged setback that never drops below 35 feet. Sections 316-25 and 316-26 of the Grant County Code set the rules.
Grant County WI Shoreland Building Setback Rules
Some RestrictionsGrant County Code § 316-25
§ 316-25. Shoreland setbacks. A. ... Unless exempt under § 316-25B, or reduced under § 316-26, or increased under § 316-27, a setback of 75 feet from the ordinary high-water mark of any navigable water to the nearest part of a building or structure shall be required for all buildings and structures. ... § 316-26. Reduced principal structure setback. ... A setback less than the seventy-five-foot...
Structure Height Limits
In unincorporated Grant County, Wisconsin, the shoreland zoning chapter adopted by the County Board bars any construction that results in a structure taller than 35 feet within 75 feet of the ordinary high-water mark of navigable waters. This page covers that Chapter 316 height limit and the way the code measures height.
Grant County WI Shoreland Structure Height Limit
Some RestrictionsGrant County Code § 316-41
§ 316-41. Height restrictions. To protect and preserve wildlife habitat and natural scenic beauty, on or after February 1, 2010, a county may not permit any construction that results in a structure taller than 35 feet within 75 feet of the ordinary high-water mark of any navigable waters.
Lot Coverage Limits
In unincorporated Grant County, Wisconsin, the County allows up to 15% impervious surface on the portion of a lot or parcel within 300 feet of the ordinary high-water mark. An owner can have more than 15% but not more than 30% when the § 316-38 standards are met. Sections 316-37 and 316-38 of the Grant County Code set the limits.
Grant County WI Shoreland Impervious Surface Limits
Some RestrictionsGrant County Code § 316-37
§ 316-37. General impervious surface standard. ... Except as otherwise allowed in §§ 316-38 through 316-40, the County shall allow up to 15% impervious surface on the portion of a lot or parcel that is within 300 feet of the ordinary high-water mark. § 316-38. Maximum impervious surface standard. ... A property may exceed the impervious surface standard under § 316-37 or § 316-38, provided the ...
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