Duxbury
Plymouth County · Pop. 16,090
Duxbury has approved 2 of 3 ADU applications (67% approval rate) and has 3 of 8 bylaw provisions consistent with state law.
Based on 2 approved ADU applications and 16,090 residents
Permits
3 applications since the ADU law took effect in Feb 2025
| Address | Type | Status | Value |
|---|---|---|---|
| Powder Point Ave | Detached | Issued | $319,500 |
| Elm St | Conversion | Issued | $290,500 |
| Driftwood Dr | Detached | Issued | $224,250 |
| Sprague Farm Ln | Conversion | Issued | $9,300 |
| Franklin Ter | Detached | Issued | $248,000 |
Bylaw Consistency
Duxbury has 2 provisions that appear inconsistent with Chapter 150 — owner-occupancy and a special permit requirement. The 10-year home age requirement in Section 410.3(3) cross-references the ADU section but may only apply to the special permit pathway, not Protected Use ADUs. None have been reviewed by the AG. The site plan review process and pending STR regulation add ambiguity. The bylaw predates the state ADU law and has not been reconciled with it.
Cost Snapshot
Based on 5 permitted ADU projects in Duxbury
Try the full cost estimatorADU Impact on Housing Production
In 2024, Duxbury issued 26 total residential building permits. In the first year of the ADU law, 2 ADU permits were approved — equivalent to 7.7% of prior-year housing production.
Source: Census Bureau (2024) via UMass Donahue Institute; EOHLC ADU Survey (2025)
How Duxbury 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.