Cumberland planners, council and public parse new state density law LD 1829

Cumberland held a joint workshop of the Planning Board, Comprehensive Plan Committee and Town Council on Monday, Aug. 25, to review state law L.D. 1829 and discuss what changes the town must make to ordinances and its comprehensive plan.

The law matters because it changes where towns must allow additional dwelling units and tightens rules tying density to public water and sewer. Town Attorney Mary Costigan, who led the presentation, told the group that the bill builds on earlier housing law and that Cumberland must plan now to meet the implementation deadline.

Costigan summarized the lawincluding its most consequential requirements for Cumberland: "anywhere in town where residential use is allowed, anyone can have 3 dwelling units," she said, and "in areas that are served by public water or in growth areas, they can have 4 units." She added that, for lots in designated growth areas served by public water and sewer, the municipality "cannot set a minimum lot size greater than 5,000 square feet," and that the law limits the land area per dwelling for the first four units to roughly 1,250 square feet per unit. Costigan also told attendees the statute contains an implementation timeline: "it is to become implemented here 07/01/2026."

Why this matters: those provisions together mean zoning that today requires large minimum lots in parts of Cumberland could allow much denser residential development where lots are in…