Yes, you can build in Boston — but the city has one of the most complex permitting environments in the nation. The BPDA (Boston Planning & Development Agency) oversees large projects, and neighborhood-level zoning articles create a patchwork of requirements. ADU pilot programs are expanding.
Last updated: April 2026 · Data from 20+ government sources
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ADU Status
Expanding — ADU pilot program
Common Zones
R-1, MFR, NS, CC, I-1
Permit Timeline
8–20 weeks
Key Constraint
BPDA review, historic preservation, coastal flood
142 factors. 20+ government sources. Buildability Score in 20 seconds.
Score My Boston Property FreeZoning rules in Boston vary by address. Enter your specific property for accurate results. Always verify with the Boston planning department before making decisions.