ADU Town Regulations
Kittery, ME

Jan 24, 2024
Last Updated
About
Kittery is a town in York County, Maine, United States, and the oldest incorporated town in Maine. Home to the Portsmouth Naval Shipyard on Seavey's Island, Kittery includes Badger's Island, the seaside district of Kittery Point, and part of the Isles of Shoals. The southernmost town in the state, it is a tourist destination known for its many outlet stores. Kittery is part of the Portland–South Portland–Biddeford, Maine metropolitan statistical area. The town's population was 10,070 at the 2020 census.
ADU Rules
ADUs are only allowed on lots where there is one single family dwelling
ADUs are limited to one structure per lot.
ADUs may not be greater than 1,000 square feet.
For single family homes 1,000 square feet or less, the ADU may not be greater than 80% of the square footage of the single family dwelling.
ADUs are exempt from density requirements.
Rental periods may not be less than 30 days.
For conforming lots, ADUs must meet yard setbacks; however, for legally nonconforming lots that cannot meet setback requirements, the percentage of how much smaller the lot is will determine the setback requirements.
All utilities must meet or be updated to provide adequate service to the ADU.
One parking space must be provided for the ADU in addition to the parking available for the existing single family dwelling.
If an ADU is to be located on a privately maintained road or right-of-way, written permission must be obtained from the homeowner’s association and individuals/groups responsible for street maintenance.