Falmouth
Barnstable County · Pop. 32,517
Falmouth has approved 12 of 12 ADU applications (100% approval rate) and has 3 of 10 bylaw provisions consistent with state law.
Based on 12 approved ADU applications and 32,517 residents
Permits
12 applications since the ADU law took effect in Feb 2025
| Address | Type | Status | Value |
|---|---|---|---|
| Alden Dr | Permit Issued | — | |
| Agawan Rd | CO Issued | — | |
| Agawan Rd | CO Issued | — | |
| Alexander Booker Rd | Permit Issued | — | |
| Alderberry Ln | Permit Issued | — |
Bylaw Consistency
The Attorney General partially approved Falmouth's November 2024 ADU bylaw on June 2, 2025, disapproving and deleting four categories of provisions: references limiting ADUs to single-family dwellings, a minimum lot size requirement, a six-month rental minimum, and bedroom limitations including a two-bedroom cap and overlay district bedroom density rules. The AG determined these provisions conflict with G.L. c. 40A, § 3 and 760 CMR 71.00. Several approved provisions received detailed advisory warnings — most notably, the site plan review process must operate as ministerial review and cannot function as discretionary approval, and the town must allow ADUs in Business Districts where single-family homes are permitted. Falmouth's parking requirements, short-term rental prohibition, and footprint restriction are consistent with state law.
Cost Snapshot
No cost data available yet for Falmouth.
Try the cost estimatorADU Impact on Housing Production
In 2024, Falmouth issued 90 total residential building permits. In the first year of the ADU law, 12 ADU permits were approved — equivalent to 13.3% of prior-year housing production.
Source: Census Bureau (2024) via UMass Donahue Institute; EOHLC ADU Survey (2025)
How Falmouth Compares
Next Steps
Sources: EOHLC ADU Survey 2025. Individual permit records from municipal building department. 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.