Building Setbacks & Zoning in Jefferson County, WI (2026)
3 rules for unincorporated Jefferson County, Wisconsin.
Verified from official government sources
Setback Rules
In the R-1 Residential-Sewered District under Jefferson County zoning, rear yards must be at least 25 feet and side yards at least 10 feet each, with the front yard setback set by a separate cross-referenced section. Other districts, such as A-1 and A-T, carry their own yard tables.
Jefferson County R-1 District Yard Setbacks
Some RestrictionsJefferson County Code § 22-129
Sec. 22-129. - Minimum yards. Minimum yards in the R-1 Residential—Sewered District are as follows: (1)Front: See section 22-678(b).(2)Rear: 25 feet.(3)Side: ten feet each.
Structure Height Limits
In the R-1 Residential-Sewered District under Jefferson County zoning, a principal building cannot exceed three stories or 35 feet. Accessory building height in the same district is capped separately by cross-reference to the chapter's general height-exception standards.
Jefferson County R-1 District Building Height Cap
Some RestrictionsJefferson County Code § 22-130
Sec. 22-130. - Maximum principal building height. Maximum principal building height in the R-1 Residential—Sewered District is as follows: three stories or 35 feet.
Lot Coverage Limits
In the R-1 Residential-Sewered District under Jefferson County zoning, principal and accessory buildings combined cannot cover more than 30 percent of a lot's existing area. The cap sits alongside the district's separate minimum lot size, width and depth standards.
Jefferson County R-1 District Lot Coverage Cap
Some RestrictionsJefferson County Code § 22-132
Sec. 22-132. - Maximum lot coverage by buildings. Maximum lot coverage by principal and accessory structures not to exceed 30 percent of existing lot area.
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