Lowell’s City Council defeated a proposed ADU ordinance by a 7-4 vote in October 2023 (Lowell Sun, October 2023) — before the state ADU law took effect. The council chose not to create local ADU regulations, leaving state law as the sole framework governing ADU construction in the city.

The result is striking: Lowell is the 4th highest municipality in Massachusetts for ADU permits, with 26 submitted and all 26 approved (100% rate). This makes Lowell a powerful case study demonstrating that state law alone is sufficient to enable ADU construction — local ordinances are not required.

By not passing a local ordinance, Lowell inadvertently created one of the most permissive ADU environments in the state. There are no local restrictions layered on top of state law, no additional review hurdles, and no provisions that might conflict with G.L. c. 40A §3.

Lowell’s experience suggests that the simplest path to ADU-friendly policy may be no local policy at all.