St. Louis County handles building permits for unincorporated areas and townships that have not opted to enforce their own codes. Incorporated cities like Duluth, Hibbing, and Virginia maintain their own independent building departments and permit processes. The county enforces specific shoreland and floodplain management ordinances for properties located near protected water bodies.
The county maintains strict shoreland management regulations that require specific setbacks and vegetation management plans for any development within 1,000 feet of a lake or 300 feet of a river.
How this fits with the state
The state authority here is Minnesota Department of Labor and Industry. The county file does not replace that — it adds the permit office, local overlays, and the actual filing path.
Source · St. Louis County Planning and Community Development DepartmentLast verified · 05 / 2026