AN ACT PROHIBITING CERTAIN LAND USE AND ZONING LIMITATIONS ON HOUSING.

SB 151 prohibits local municipalities from imposing specific zoning restrictions that limit housing options, effective October 1, 2026. It directly affects local governments (by restricting their zoning authority), homeowners (especially those seeking to add accessory units or operate home-based businesses), and housing developers. Key provisions ban requirements like minimum lot sizes over 5,000 square feet for single-family homes, caps on multifamily units, excessive parking mandates, and restrictions on cottage food operations or home child care in residential zones. The bill exempts historic properties, agricultural land, and conservation areas, and does not override essential safety codes. This aims to increase housing density and affordability by removing common barriers to diverse housing types.