Permits are highly decentralized; the City of La Crosse and other incorporated municipalities manage their own building inspections and permit issuance. The County Zoning Department handles land use, shoreland zoning, and sanitary permits for unincorporated areas. Floodplain and shoreland zoning overlays apply to properties near the Mississippi and Black Rivers, requiring additional county review.
How this fits with the state
The state authority here is Wisconsin Department of Safety and Professional Services. The county file does not replace that — it adds the permit office, local overlays, and the actual filing path.