Governor's Bill No. 1252 seeks to create "priority housing development zones" within municipalities to enhance the development of multifamily housing, effective July 1, 2025. The bill introduces new definitions, including "approved priority housing development zones" and "developable land," and allows zoning commissions to adopt regulations for these zones, ensuring they align with the state plan of conservation and development. It establishes minimum density requirements for housing types, such as four units per acre for single-family homes and ten units per acre for multifamily housing, while permitting modifications to existing zoning standards to facilitate these developments. Additionally, municipalities can request a letter of eligibility from the Commissioner of Housing after establishing a priority housing development zone, with the commissioner responsible for reviewing and approving these requests based on compliance with the new requirements.

The legislation also revises the process for municipalities to obtain a certificate of affordable housing project completion by introducing new criteria for certification. Municipalities that receive a final letter of eligibility from the commissioner can qualify for a certificate by demonstrating the completion of affordable housing developments that yield a specified number of housing unit-equivalent points, specifically either one and three-quarter percent of all dwelling units or sixty-five housing unit-equivalent points. The application process is modified to require municipalities to provide documentation of the points accumulated and the locations of the counted dwelling units. The commissioner is mandated to publish a notice of the application in the Connecticut Law Journal for public comment and must approve or reject the application within ninety days, with provisions for provisional approval if no action is taken. Overall, the bill aims to streamline the affordable housing certification process while implementing the Governor's budget recommendations.