Tiny Homes: Lowell vs Somerville
How do tiny homes rules compare between Lowell, MA and Somerville, MA?
Lowell has fewer restrictions than Somerville.
Lowell, MA
Middlesex County
Tiny homes on permanent foundations can qualify as ADUs in Lowell under the 2024 state ADU mandate up to 900 square feet. Tiny houses on wheels are generally not allowed as permanent dwellings because they are classified as RVs under state law.
View full Lowell rules →Somerville, MA
Middlesex County
Tiny homes on foundations can qualify as ADUs in Somerville under the 2024 Affordable Homes Act. Tiny homes on wheels are treated as RVs and generally cannot be used as permanent dwellings.
View full Somerville rules →Key Facts Comparison
| Fact | Lowell | Somerville |
|---|---|---|
| On foundation | Allowed as ADU | - |
| Size cap | 900 sq ft for ADU | - |
| Code | 780 CMR Appendix AQ | - |
| On wheels | Treated as RV not home | - |
| Permit | Inspectional Services | - |
| Foundation tiny home | - | Allowed as ADU |
| State code | - | 780 CMR Appendix AQ |
| Max as ADU | - | 900 sq ft |
| Tiny homes on wheels | - | Not permanent dwelling |
| RV residency | - | Prohibited long-term |
Highlighted rows indicate differences between cities.
Lowell FAQ
Can I live in a tiny home in Lowell?
Yes if it is on a permanent foundation and built to code, typically qualifying as an ADU up to 900 square feet.
Can I park my tiny house on wheels and live in it?
No. Massachusetts classifies tiny houses on wheels as RVs, which cannot be used as permanent residences in residential zones.
Somerville FAQ
Can I live in a tiny home in Somerville?
Yes on a permanent foundation as an ADU. Tiny homes on wheels cannot be permanent dwellings.
Is there a minimum size?
Appendix AQ allows dwellings as small as 120 sq ft if code compliant; Somerville follows state code.
Compare other topics
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