Garage Conversions: Quincy vs Weymouth
How do garage conversions rules compare between Quincy, MA and Weymouth, MA?
Quincy and Weymouth have similar restriction levels.
Quincy, MA
Norfolk County
Garage conversions in Quincy require a building permit. If converting to living space or an ADU, the conversion must comply with Massachusetts Building Code (780 CMR), zoning setbacks, and ADU size rules under QZO and MGL c. 40A §3.
View full Quincy rules →Weymouth, MA
Norfolk County
Garage conversions to ADUs in Weymouth are permitted under the 2025 ADU ordinance (Article 29). Conversions require a building permit, Site Plan Approval, and design review. The converted ADU must comply with the 750–900 sq ft size limit and setback requirements.
View full Weymouth rules →Key Facts Comparison
| Fact | Quincy | Weymouth |
|---|---|---|
| Permit Required | Yes | - |
| ADU Rules Apply | If converting to ADU — max 900 sq ft | - |
| Building Code | 780 CMR for habitable space | - |
| Contact | Inspectional Services: (617) 376-1450 | - |
| Permitted? | - | Yes — under ADU Article 29 |
| Max Size | - | 750–900 sq ft depending on lot size |
| Permits Required | - | Building permit + Site Plan Approval + design review |
| Building Dept. | - | (781) 335-2000 |
Highlighted rows indicate differences between cities.
Quincy FAQ
Can I convert my garage into living space in Quincy?
Garage conversions in Quincy require a building permit. If converting to living space or an ADU, the conversion must comply with Massachusetts Building Code (780 CMR), zoning setbacks, and ADU size rules under QZO and MGL c. 40A §3.
What permits do I need for a garage conversion in Quincy?
Permit Required: Yes. ADU Rules Apply: If converting to ADU — max 900 sq ft. Building Code: 780 CMR for habitable space. Contact: Inspectional Services: (617) 376-1450.
Weymouth FAQ
Can I convert my garage into living space in Weymouth?
Garage conversions to ADUs in Weymouth are permitted under the 2025 ADU ordinance (Article 29). Conversions require a building permit, Site Plan Approval, and design review. The converted ADU must comply with the 750–900 sq ft size limit and setback requirements.
What permits do I need for a garage conversion in Weymouth?
Permitted?: Yes — under ADU Article 29. Max Size: 750–900 sq ft depending on lot size. Permits Required: Building permit + Site Plan Approval + design review. Building Dept.: (781) 335-2000.
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