Building Setbacks & Zoning in Fond du Lac County, WI (2026)
3 rules for unincorporated Fond du Lac County, Wisconsin.
Verified from official government sources
Setback Rules
Within shoreland areas of unincorporated Fond du Lac County, buildings and structures must sit at least 75 feet back from the ordinary high-water mark of navigable water under Code Sec. 44-203, and lot-line setbacks run at least ten feet under Sec. 44-201, except for small accessory buildings.
Shoreland Building Setbacks, Fond du Lac County
Some RestrictionsFond du Lac County Code §§ 44-203(a), 44-201
(NR115.05(1)(b)1.) Unless exempt under subsection (b), or reduced under section 44-204, a setback of 75 feet from the ordinary high-water mark of any navigable waters to the nearest part of a building or structure shall be required for all buildings and structures. ... The setback from one lot line shall be no closer than ten feet except in the case of an accessory structure of 120 square feet ...
Structure Height Limits
Within shoreland areas of unincorporated Fond du Lac County, the county may not permit any structure taller than 35 feet within 75 feet of the ordinary high-water mark of a navigable water, per Code Sec. 44-84. Height is measured from the lowest exposed wall point to the highest point of the structure.
Shoreland Structure Height Limit, Fond du Lac County
Some RestrictionsFond du Lac County Code § 44-84(a)
(a)To protect and preserve wildlife habitat and natural scenic beauty, on or after February 1, 2011, 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
Within shoreland areas of unincorporated Fond du Lac County, impervious surface on the portion of a lot within 300 feet of the ordinary high-water mark is capped at 15 percent under Code Sec. 44-283, rising as high as 40-60 percent on mapped highly developed shorelines or with a mitigation plan.
Shoreland Impervious Surface Limit, Fond du Lac County
Some RestrictionsFond du Lac County Code § 44-283
(NR 115.05(1)(e)2.) Except as allowed in sections section 44-284 through 44-286 allow up to 15 percent impervious surface on the portion of a lot or parcel that is within 300 feet of the ordinary high-water mark.
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