Building Safety in Marathon County, WI (2026)
1 county-level rule, plus city-specific rules for 2 cities in Marathon County, Wisconsin.
Verified from official government sources
Note: These county rules apply to unincorporated areas of Marathon County. If you live within an incorporated city, that city's own rules apply: see the city list below.
Building Permits
A deck is a structure under Marathon County's zoning code, so building one in a town under county zoning requires a zoning permit before construction starts, unless it counts as a minor structure.
Marathon County Deck Permit Requirement
Some RestrictionsMarathon County Code § 17.802.01
A zoning permit shall be issued before any of the following may occur:1.Prior to the erection, structural alteration, or moving of any building or structure except as exempted in this section.2.Prior to the establishment of a new use, whether the land is currently vacant or if a substantial change in land use is proposed.3.Prior to any change in use of an existing building or structure.B.Exempt...
Building Safety by City in Marathon County
2 cities in Marathon County have their own building safety rules. Each link goes to that city's dedicated page with code citations.
All Marathon County ordinances
See every category we cover for Marathon County: parking, noise, fences, fires, animals, pools, and more.
Marathon County Ordinance Hub →