ADU Pulse

Southborough

Worcester County · Pop. 10,450

B

Southborough has approved 0 of 2 ADU applications (0% approval rate) and has 0 of 1 bylaw provisions consistent with state law.

Some bylaw provisions aren’t yet consistent with state law, and the approval rate is below average. Check specific provisions before applying.
How active is your town?
0.0
per 10K residents0.0x state average
Southborough
0.0
State avg
2.0

Based on 0 approved ADU applications and 10,450 residents

Permits

0%approval rateⓘShare of 2025 applications approved in 2025
0 approved0 denied0 pending

2 applications since the ADU law took effect in Feb 2025

Bylaw Consistency

0 / 1
provisions consistent with Chapter 150

Southborough tried to ban mobile homes from being used as ADUs, but the AG struck down the restriction because the town’s broad definition of “mobile home” included manufactured homes protected under state law. The travel trailer ban was upheld. The Planning Board is already working on revisions for April Town Meeting. This decision sets a precedent: towns cannot use overbroad definitions to exclude modular or manufactured ADUs. (My Southborough, February 2026)

Full Southborough consistency analysis

Cost Snapshot

No cost data available yet for Southborough.

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How Southborough Compares

A
Worcester74% rate · 1.1 per 10K
23A
Shrewsbury56% rate · 2.3 per 10K
9B
Charlton50% rate · 3.8 per 10K
5A
Millbury88% rate · 5.1 per 10K
7
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Next Steps

Join Southborough's ADU Club for group builder ratesFind builders working in Worcester CountyRead the ADU homeowner guide

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.