The proposed bill aims to facilitate the construction of single-family homes on small lots in areas with adequate infrastructure by amending Section 3 of chapter 40A of the Massachusetts General Laws. It stipulates that no zoning ordinance or by-law can unreasonably restrict or require special permits for single-family residences in zoning districts that permit residential uses, provided the lot is at least 5,000 square feet in area and has a minimum of 50 feet of frontage, along with access to public sewer and water services. The bill also allows for reasonable regulations concerning dimensional setbacks, structure bulk and height, and restrictions on short-term rentals.

Additionally, the bill empowers the Executive Office of Housing and Livable Communities to issue guidelines or regulations for its administration. This initiative is designed to promote housing development while ensuring that local governments retain the ability to regulate certain aspects of single-family homes to maintain community standards. The act will take effect as outlined in Article 48 of the Amendments to the Massachusetts Constitution.