This bill introduces a new section to RSA 674, titled "Residential Construction Consistent with Existing Neighborhood Density," which aims to streamline the process for obtaining residential construction permits in municipalities. It mandates that municipalities must approve permits when a licensed architect certifies that the proposed construction aligns with the density of surrounding developments. The bill explicitly prohibits discretionary zoning denials that are inconsistent with existing neighborhood patterns, thereby preventing arbitrary downzoning that could limit residential development.

Key provisions of the bill include a definition of "downzoning," which refers to reducing the number of dwelling units or limiting the types of uses allowed on land. It places the responsibility on property owners to conduct an analysis of existing residential density, which must be certified by a licensed architect. The bill emphasizes that the permit issuance process will be ministerial and non-discretionary, meaning municipalities cannot refuse permits if the architect's certification is in compliance with the established density. Additionally, the bill clarifies that municipalities retain the authority to enforce building codes and other non-zoning regulations.