An Act relative to affordable housing and the preservation of a community's water resources

This bill amends Massachusetts law to clarify how local zoning rules can restrict affordable housing development to protect water resources. It defines regulations as "consistent with local needs" when they are applied equally to all housing types and include specific criteria for safeguarding municipal water supplies and natural water resources. The law allows communities to deny affordable housing projects if they would cover more than a small percentage of the town's land or if the area already has a high concentration of such housing. By updating the definition of local needs, the bill gives municipalities clearer authority to balance housing demands with environmental preservation without treating subsidized and unsubsidized housing differently.