ADU Town Regulations
Biddeford, ME
Jun 8, 2024
Last Updated
About
Biddeford is a city in York County, Maine, United States. It is the principal commercial center of York County. Its population was 22,552 at the 2020 census. The twin cities of Saco and Biddeford include the resort communities of Biddeford Pool and Fortunes Rocks. The town is the site of the University of New England and the annual La Kermesse Franco-Americaine Festival. First visited by Europeans in 1616, it is the site of one of the earliest European settlements in the United States. It is home to Saint Joseph's Church, the tallest building in Maine.
ADU Rules
Only one ADU may be created within a single-family house or house lot.
The unit will be a complete, separate housekeeping unit containing both kitchen and bath.
An ADU may not have more than two bedrooms.
All ADUs shall have a gross floor area of at least 300 square feet.
The gross floor area of an ADU (including any additions) shall not be greater than 35% of the gross floor area of the principal dwelling unit or 900 square feet, whichever is greater.
ADUs may be created on lots meeting the minimum lot size for a single-family dwelling in the zoning district or on legally nonconforming lots as of January 1, 2017.
ADUs shall not be intended for sale and shall remain in common ownership with the principal dwelling unit.
Once an ADU has been added to a single-family residence or lot, the ADU shall never be enlarged beyond the 35% of the gross floor area of the principal dwelling unit or the 900 square feet allowed by this ordinance.
Rooftop decks are not permitted.
The construction of any ADU must be in conformity with all applicable federal, state and local laws, ordinances and regulations.
One off-street parking space is required for an ADU unless legal on-street parking or publicly supplied off-street parking is located within 1,000 feet. Tandem parking is permitted.
Internal ADUs shall also comply with the following:
Internal ADUs shall not result in additional entrances facing a public street on the primary structure.
Any stairways leading to the internal ADU shall be enclosed.