This bill introduces a new section to RSA 674, establishing maximum lot sizes for single-family residential uses based on the type of infrastructure servicing the lot. Specifically, for lots not serviced by municipal or community sewer infrastructure, the maximum lot size is set at 88,000 square feet. For lots serviced by municipal or community water infrastructure, the maximum lot size is 44,000 square feet, provided there is adequate water system capacity. Additionally, for lots serviced by municipal or community sewer infrastructure, the maximum lot size is 22,000 square feet, contingent upon sufficient sewage system capacity. The bill also clarifies that these requirements do not limit the development potential of lots created before July 1, 2024, nor do they override existing municipal zoning regulations or environmental service regulations.

The bill aims to streamline zoning procedures concerning residential housing while ensuring that municipalities can only impose larger lot sizes if they provide empirical evidence of inadequate infrastructure capacity. The effective date for this act is set for July 1, 2026. The fiscal impact is noted as indeterminable for local expenditures, as municipalities may face costs related to amending zoning ordinances and assessing infrastructure capacity.