Billerica
Middlesex County · Pop. 42,119
Billerica has approved 13 of 18 ADU applications (72% approval rate).
Based on 13 approved ADU applications and 42,119 residents
Permits
18 applications since the ADU law took effect in Feb 2025
Bylaw Consistency
We haven't reviewed Billerica's bylaws yet. See the 28 towns we've analyzed for consistency with Chapter 150.
Cost Snapshot
No cost data available yet for Billerica.
Try the cost estimatorADU Impact on Housing Production
In 2024, Billerica issued 28 total residential building permits. In the first year of the ADU law, 13 ADU permits were approved — equivalent to 46.4% of prior-year housing production.
Source: Census Bureau (2024) via UMass Donahue Institute; EOHLC ADU Survey (2025)
How Billerica Compares
Next Steps
Sources: EOHLC ADU Survey 2025. Population estimates from 2024 Census ACS.
Disclaimer: ADU Pulse provides data for informational purposes only. It does not constitute legal, financial, or construction advice.Bylaw consistency analysis reflects our interpretation of public records and may not reflect the most current local amendments.
See methodology for details on data collection, scoring, and consistency analysis.