Local governments would allow added homes on lots with legally established single-family houses

Local governments would have to allow at least one added home without special zoning approval. This covers lots with a legally established single-family house. The added home could be attached to the house, separate from it, or inside it. An added home must have its own cooking, sleeping, and bathroom facilities. Approval could not require a public hearing, a zoning waiver, a special permit, or planning board approval. Officials could check whether a site plan meets zoning rules. Local rules would also have to allow the added home to be rented. Local governments would have to adopt these rules within one year after the bill takes effect.

Certain property restrictions that block or unreasonably limit an eligible added home would be unenforceable. This covers restrictions in deeds, contracts, and similar property documents, as well as related rules, for lots zoned for single-family housing. The added home must otherwise meet the bill’s rules. This applies to restrictions not in effect on June 30, 2027, restrictions created after that date, and restrictions used for rules created or taking effect after that date.