An Act promoting accessory dwelling units

This bill amends Massachusetts zoning laws to encourage the creation of accessory dwelling units, which are secondary living spaces within single-family homes. It allows cities and towns to establish specific zoning districts where these units can be built as of right, while prohibiting unreasonable restrictions on their location, size, or design. The legislation also changes the voting requirement for adopting or changing these zoning districts to a simple majority rather than a supermajority, and it restricts certain financial incentives for communities that have approved such districts unless they meet specific smart growth criteria.