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ADU (Accessory Dwelling Unit) Permits in Massachusetts

369 recent ADU building permits in our dataset, identified from the project descriptions on public Massachusetts permit records. Each one is a property owner who just got approval for exactly this work — preview below, full leads via MassPermits.

369
ADU (Accessory Dwelling Unit) permits
$110,000
Median declared value

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Recent ADU permits

IssuedTownTradeStreetProject value
2026-11-03BellinghamRoofingA Farm St—
2026-11-03BellinghamBuildingA North Main St—
2026-11-03WesthamptonSepticSouthampton Rd—
2026-10-29RocklandElectricalGreenwood St—
2026-10-29MiltonElectricalWashington St—
2026-10-29MiltonRenovation/RemodelGordon Rd—
2026-10-28UxbridgePlumbingMendon St—
2026-10-27WesthamptonElectricalSouthampton Rd—
2026-10-27CarlisleBuildingSunset Rd—
2026-10-27UxbridgeBuildingHigh St—
2026-10-26RocklandElectricalLiberty St—
2026-10-26FalmouthRenovation/RemodelRolling Acres Ln—
2026-10-26ChathamBuildingRound Cove Rd$215,640
2026-10-23FalmouthElectricalSandwich Rd—
2026-10-22FalmouthRenovation/RemodelFresh Pond Rd—
2026-10-21FalmouthElectricalRolling Acres Ln—
2026-10-21BellinghamNew ConstructionA South Main St—
2026-10-21BellinghamKitchen/BathA South Center St—
2026-10-21Oak BluffsNew ConstructionWilson Av$50,000
2026-10-20FalmouthPlumbingSweet Rd—

House numbers masked and contractor names withheld in this public preview. The full list, with the exact address, the name on the permit where the town lists one, and a sortable file, is in the weekly feed.

ADU (Accessory Dwelling Unit) permits by town

Lowell (34)Falmouth (30)Easthampton (20)Bourne (20)Somerville (20)Braintree (20)Bellingham (19)Randolph (17)Mansfield (13)Plymouth (12)Milton (12)Hanson (11)

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FAQ

How many ADU permits are in the MassPermits dataset?

369 recent ADU building permits across Massachusetts are in our dataset right now, identified from the project descriptions on public permit records. That is our dataset's count, not a census of every permit filed in the state.

How do I get ADU leads in Massachusetts?

MassPermits delivers these permits as ready-to-work leads with the full address and project type, plus the permit holder and declared value where the town lists them. Free sample at masspermits.com; weekly feed $99/mo.