County seat: Butte
Building in Silver Bow County
How zoning works here
This county administers zoning across the unincorporated county.
Building permits
Building permit authority is not verified for this county
We have not verified how building permits are handled in this county's unincorporated area. Many Montana counties have no county building department, in which case the Montana Department of Labor and Industry Building Codes Bureau is the permitting authority for non-exempt structures — and single-family homes are largely exempt from state permitting. Confirm with the county planning office before assuming either an inspection regime or its absence.
Who to call
Building permits
Not published in a form we could verify. The county courthouse can direct you.
Subdivision review
Not published in a form we could verify. The county courthouse can direct you.
State building codes
Montana Department of Labor and Industry, Building Codes Bureau
Check a specific parcel in Silver Bow County
County rules are only part of the picture. Terrain, soils, septic feasibility, flood, wetlands and access are parcel-specific.
County authority details researched from primary county sources and verified 2026-08-14. County rules change and this page is a starting point, not a determination. Confirm anything you intend to rely on directly with the office that administers it. Sources: co.silverbow.mt.us, www.co.silverbow.mt.us, co.silverbow.mt.us