Portage County, WI Building Safety: Building Permits (2026)

Portage County Code § 7.1.6(2)(a) creates the Office of Zoning Administrator and puts that office in charge of administering, supervising, and enforcing the county's zoning code, with compensation set by the County Board of Supervisors. Under § 7.1.6(2)(a)2.a, 'no building, sign, other structure, use of land, or any part thereof shall hereafter be built, enlarged, altered or moved' anywhere subject to the zoning code until a zoning permit has been applied for in writing and obtained from the Zoning Administrator; the Administrator supplies the application forms and keeps a permanent record of every permit issued.

Critically, the ordinance does not let a permit issue in isolation: a Portage County Zoning Permit cannot be granted until the project complies with the entire Portage County Code of Ordinances, so an application that would violate the county's health and sanitation, park, or floodplain chapters gets stopped at the permit desk rather than after construction starts. Applications must be accompanied by a location sketch, drawn to scale, showing the lot's actual shape and dimensions and the exact size and placement of the proposed building on the lot, letting the Administrator check setbacks, highway right-of-way distances, and vision-clearance triangles before signing off.

Because the towns of Portage County fall under this permit requirement only where they have adopted county zoning, a landowner should first confirm with the Planning and Zoning Department that county zoning actually governs their town before assuming this permit process applies to a given parcel; towns that have not adopted county zoning administer their own building approval separately.