ADU Permits: Boston vs Revere
How do adu permits rules compare between Boston, MA and Revere, MA?
Boston, MA
Suffolk County
Boston ADU permits are reviewed under the Boston Zoning Code (BZC) Article 65 and underlying neighborhood districts, with statewide ADU-by-right standards established by the 2024 Massachusetts Affordable Homes Act (Chapter 150 of the Acts of 2024). Detached ADUs under 900 sq ft are allowed by-right in single-family zones statewide, but Boston still requires building, electrical, plumbing, and zoning permits issued by the Inspectional Services Department (ISD).
View full Boston rules →Revere, MA
Suffolk County
No data available yet for Revere.
Key Facts Comparison
| Fact | Boston | Revere |
|---|---|---|
| State Law | Mass. AHA 2024 (G.L. c. 40A § 3A) | - |
| Max ADU Size | 900 sq ft by-right statewide | - |
| Permit Authority | Boston ISD | - |
| Building Code | MA State Building Code 9th Ed. | - |
| Historic Review | Boston Landmarks Commission if applicable | - |
Highlighted rows indicate differences between cities.
Boston FAQ
Can I build an ADU in Boston by-right?
Yes for detached ADUs up to 900 sq ft on single-family lots under the 2024 Massachusetts Affordable Homes Act. Building, plumbing, and electrical permits from Boston ISD are still required.
Does Boston still review ADU zoning?
Boston ISD performs zoning review for setbacks, egress, and lot dimensions, but cannot deny an ADU that meets the state by-right standards. Historic district properties also require Landmarks Commission approval.
Revere FAQ
No FAQs available.
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