The Three Codes That Govern Your Project
Almost every Massachusetts home project touches at least one of three code series. The building code sets the structural and energy baseline; the plumbing and electrical codes govern their trades and require master-licensed sign-off. Each below is a standalone reference tied to the license that enforces it.
| Code | Scope |
|---|---|
| 780 CMR — State Building Code | The statewide minimum construction standard, based on IRC 2021 + IBC 2021 with Massachusetts amendments. Governs structural, energy, and permitting. |
| 248 CMR — Plumbing & Gas Code | The Uniform State Plumbing Code governing all plumbing and gas fitting work. Requires Master Plumber / Gas Fitter sign-off. |
| 527 CMR — Electrical Code | The Massachusetts Electrical Code, adopting NEC 2020 with state amendments. Requires Master Electrician sign-off. |
How Codes Reach Your Permit
Code compliance is not optional in Massachusetts — it is what a permit certifies. Pro Build's licensed supervisors and master tradespeople pull permits under these codes and schedule the inspections they require, so the work is documented and insurable. Each reference links the code to the board that administers it and the license that signs off.