Rep. Merryl Gibbs

Maddy summaryHB 413 requires developers to complete specified construction improvements (such as roads and utilities) before receiving building permits for new subdivisions. This directly affects residential developers and local governments that issue building permits. The bill changes current practice by mandating that these improvements must be finished and approved prior to permit issuance, rather than allowing permits to be granted before completion. The law took effect on July 1, 2025, after being signed by Governor Ayotte.

Maddy summaryThis bill requires New Hampshire municipalities to allow homeowners to build one accessory dwelling unit, such as a garage conversion or an addition, on their single-family property without needing special approval. It defines these units as separate living spaces with their own kitchen and bathroom and sets minimum size limits of 1,000 square feet for at least one unit. While towns can still require owner occupancy and enforce parking or aesthetic rules, they cannot mandate familial relationships between residents or restrict units to a single bedroom. Additionally, the legislation clarifies that municipalities must permit the conversion of existing structures like detached garages into these units even if they do not currently meet setback or lot coverage standards.

Maddy summaryThis bill requires municipalities to provide reasonable opportunities for placing manufactured housing and subdivisions, prohibiting them from completely banning these structures through zoning or other regulations. It mandates that if a town allows residential development, it must permit manufactured homes on individual lots in most residential zones, subject to the same lot size and spacing rules as conventional single-family homes. The law also ensures that manufactured housing parks can expand and that their lot sizes and density requirements remain reasonable, while eliminating the need for special permits that are not also required for traditional single-family housing.