| MA | Middlesex County | Acton Building Department | website |
| MA | Middlesex County | Arlington Building Department | website |
| MA | Middlesex County | Ashby Building Department | website |
| MA | Middlesex County | Ashland Building Department | website |
| MA | Middlesex County | Ayer Building Department | website |
| MA | Middlesex County | Bedford Building Department | website |
| MA | Middlesex County | Belmont Building Department | website |
| MA | Middlesex County | Billerica Building Department | website |
| MA | Middlesex County | Boxborough Building Department | website |
| MA | Middlesex County | Burlington Building Department | website |
| MA | Middlesex County | Cambridge Building Department | website |
| MA | Middlesex County | Carlisle Building Department | website |
| MA | Middlesex County | Chelmsford Building Department | website |
| MA | Middlesex County | Concord Building Department | website |
| MA | Middlesex County | Dracut Building Department | website |
| MA | Middlesex County | Dunstable Building Department | website |
| MA | Middlesex County | Everett Building Department | website |
| MA | Middlesex County | Framingham Building Department | website |
| MA | Middlesex County | Groton Building Department | website |
| MA | Middlesex County | Holliston Building Department | website |
| MA | Middlesex County | Hopkinton Building Department | website |
| MA | Middlesex County | Hudson Building Department | website |
| MA | Middlesex County | Lexington Building Department | website |
| MA | Middlesex County | Lincoln Building Department | website |
| MA | Middlesex County | Littleton Building Department | website |
| MA | Middlesex County | Lowell Building Department | website |
| MA | Middlesex County | Malden Building Department | website |
| MA | Middlesex County | Marlborough Building Department | website |
| MA | Middlesex County | Maynard Building Department | website |
| MA | Middlesex County | Medford Building Department | website |
| MA | Middlesex County | Melrose Building Department | website |
| MA | Middlesex County | Middlesex County (no county building department) | website |
| MA | Middlesex County | Natick Building Department | website |
| MA | Middlesex County | Newton Building Department | website |
| MA | Middlesex County | North Reading Building Department | website |
| MA | Middlesex County | Pepperell Building Department | website |
| MA | Middlesex County | Reading Building Department | website |
| MA | Middlesex County | Sherborn Building Department | website |
| MA | Middlesex County | Shirley Building Department | website |
| MA | Middlesex County | Somerville Building Department | website |
| MA | Middlesex County | Stoneham Building Department | website |
| MA | Middlesex County | Stow Building Department | website |
| MA | Middlesex County | Sudbury Building Department | website |
| MA | Middlesex County | Tewksbury Building Department | website |
| MA | Middlesex County | Townsend Building Department | website |
| MA | Middlesex County | Tyngsborough Building Department | website |
| MA | Middlesex County | Wakefield Building Department | website |
| MA | Middlesex County | Waltham Building Department | website |
| MA | Middlesex County | Watertown Building Department | website |
| MA | Middlesex County | Wayland Building Department | website |
| MA | Middlesex County | Westford Building Department | website |
| MA | Middlesex County | Weston Building Department | website |
| MA | Middlesex County | Wilmington Building Department | website |
| MA | Middlesex County | Winchester Building Department | website |
| MA | Middlesex County | Woburn Building Department | website |