State directory · MA · Northeast

Massachusetts building departments

This Massachusetts directory covers 14 Census county equivalents and local building-department guides. Massachusetts uses the 780 CMR building code framework while local building departments handle applications, inspections, zoning coordination, and occupancy closeout.

How permitting works in Massachusetts

Statewide code with local building officials. A county name is a geographic index, not a promise that the county government issues every building permit. Many projects are handled by a city, town, township, borough, parish, regional office, or independent city.

Source-backed state research

Massachusetts Board of Building Regulations and Standards

Checked 2026-07-30

Massachusetts uses 780 CMR. The 10th Edition became effective October 11, 2024 and became the only accepted edition after the concurrency period ended June 30, 2025; local building officials administer permits and inspections.

Read the official state source ↗

Researched local guides

Available department pages

8 guides

Geographic coverage

Browse Massachusetts counties

14 county equivalents