An Act relative to municipal housing requirements

This bill modifies Massachusetts municipal zoning rules for housing. It changes the threshold requiring towns to allow more housing units: municipalities where low/moderate income housing (per Chapter 40B) is below 10% of total units must now permit additional housing, removing a previous barrier. The bill also gives towns flexibility on accessory dwelling units (ADUs), allowing them to decide whether owner occupancy is required and how many extra parking spaces are needed for ADUs. These changes directly affect towns below the 10% housing threshold and their zoning regulations for new housing projects.