SB 508 requires all grounds for appealing zoning board decisions to be stated in the initial appeal notice, directly affecting applicants, municipalities, and planning boards. It adds a new provision mandating that cities and towns must stamp and accept revised zoning plans within 3 business days of submission, provided the revisions address specific comments from the initial review. The bill also limits applicants to one revision round unless original comments were unaddressed, preventing repeated requests for changes beyond the initial review conditions. These changes aim to streamline the zoning approval process by setting clear timelines and revision limits. The bill applies to all municipalities in New Hampshire with zoning boards of adjustments.
HB 1540 establishes statewide rules for accessory dwelling units (ADUs), allowing one ADU per single-family home as a matter of right in most zoning districts without extra lot size or design requirements beyond those for the main home. In protected shoreland areas, municipalities may permit ADUs as a matter of right or through conditional permits, and they can choose to allow detached units if they meet specific environmental and zoning standards. The bill prohibits multiple ADUs per home, ADUs in townhouses (attached multi-family properties), ADUs on rented land, and separate sales of ADUs from the main house without municipal approval. It provides municipalities with clear guidance for zoning, permitting, and environmental protections related to ADUs while standardizing requirements across the state.
HB 1525 requires New Hampshire municipalities to permit at least two unrelated people per bedroom in single-family homes located within areas zoned for multi-family residential use. This change applies specifically to single-family dwellings on individual lots in multi-family zones, without altering state building or fire safety codes. The bill defines a "bedroom" as any room primarily intended for sleeping, even if used for other purposes, and clarifies that local regulations cannot override this occupancy standard. It directly affects homeowners, renters, and local governments by expanding housing flexibility in designated multi-family zones.
HB 1625 requires New Hampshire's Office of Planning and Development to produce an annual report on accessory dwelling units (ADUs), including data on their type (attached/detached), occupancy (owner, tenant, vacant), use as short-term rentals, affordability status, and conversions from existing structures. The report must include specific metrics to help state and local governments plan for housing growth and development. The bill takes effect July 1, 2026, and does not change ADU construction rules or funding requirements. The state anticipates the reporting system will require new staff and cost between $100,000 and $500,000 annually.
This bill changes how towns regulate manufactured homes. It requires municipalities to allow siting on residential lots with the same zoning rules as single-family homes (not just in parks), and mandates "reasonable efforts" to accommodate them. Existing manufactured housing parks must follow NFPA 501A fire safety standards for expansions. It also allows disaster victims to temporarily live in manufactured homes on their property for 30 days after a building permit is issued, while rebuilding their primary residence.
HB 1136 simplifies rules for accessory dwelling units (ADUs), like backyard cottages or in-law suites, making them easier to build on single-family properties. It allows municipalities to permit ADUs automatically (without special permits) or through standard processes, permits multiple ADUs per home, and sets a 750-square-foot minimum size. The bill clarifies that towns without ADU rules must allow one ADU by default (beyond basic building permits), expands access standards to all ADUs, and prohibits ADUs in townhouses, manufactured housing, or rented land. Homeowners, local governments, and potential renters are directly affected by these changes to zoning and construction rules.
HB 1017 allows New Hampshire towns to count accessory dwelling units (ADUs, like backyard cottages) toward their local workforce housing goals. It requires that ADUs meet specific affordability standards and lets municipalities enforce these standards through legal agreements recorded with property deeds. The bill directly affects local governments and property owners who develop or manage ADUs. This change modifies how towns calculate existing housing obligations without creating new state-level requirements.
