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🏗️ Accessory Structures/ADU Rules

ADU Rules: Clinton vs Leominster

How do adu rules rules compare between Clinton, MA and Leominster, MA?

Clinton and Leominster have similar restriction levels.

Clinton, MA

Worcester County

Some Restrictions

The MA Affordable Homes Act (Ch. 150, Acts of 2024, §8, effective Feb. 2, 2025) requires all MA municipalities to allow by-right ADUs on single-family lots. No county ADU ordinance; all 60 cities and towns must comply with the state mandate.

View full Clinton rules →

Leominster, MA

Worcester County

Some Restrictions

ADUs are mandated by the MA Affordable Homes Act (Ch. 150, Acts of 2024, §8, effective Feb. 2, 2025). Leominster must allow one ADU by right on single-family lots. Max 900 sq ft or 50% of principal dwelling. Permits required.

View full Leominster rules →

Key Facts Comparison

FactClintonLeominster
State MandateMA Affordable Homes Act, Ch. 150 of 2024-
Effective DateFebruary 2, 2025-
ADUsBy-right on all single-family lots-
County CodeNone — county abolished 1998-
State Law-MA Affordable Homes Act (2024, §8)
Status-ADUs by right — Leominster must permit
Max Size-900 sq ft or 50% of principal dwelling
Contact-Building/Zoning: 978-534-7510

Highlighted rows indicate differences between cities.

Clinton FAQ

Can I build an ADU on my property in Worcester County?

The MA Affordable Homes Act (Ch. 150, Acts of 2024, §8, effective Feb. 2, 2025) requires all MA municipalities to allow by-right ADUs on single-family lots. No county ADU ordinance; all 60 cities and towns must comply with the state mandate.

What are the size limits for an accessory dwelling unit in Worcester County?

State Mandate: MA Affordable Homes Act, Ch. 150 of 2024. Effective Date: February 2, 2025. ADUs: By-right on all single-family lots. County Code: None — county abolished 1998.

Leominster FAQ

Can I build an ADU on my property in Leominster?

ADUs are mandated by the MA Affordable Homes Act (Ch. 150, Acts of 2024, §8, effective Feb. 2, 2025). Leominster must allow one ADU by right on single-family lots. Max 900 sq ft or 50% of principal dwelling. Permits required.

What are the size limits for an accessory dwelling unit in Leominster?

State Law: MA Affordable Homes Act (2024, §8). Status: ADUs by right — Leominster must permit. Max Size: 900 sq ft or 50% of principal dwelling. Contact: Building/Zoning: 978-534-7510.

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