This bill, titled the "Strengthening Housing Supply Act of 2025," expands the permissible uses of federal Community Development Block Grant (CDBG) funds. Its core purpose is to explicitly authorize the new construction of affordable housing as an eligible activity under the CDBG program, addressing housing supply challenges by enabling communities to build new units. The legislation amends Section 105 of the Housing and Community Development Act of 1974 to include this new activity. It also ensures that these newly constructed units, like other CDBG-funded housing efforts, must primarily benefit low and moderate-income individuals . These changes will apply to CDBG funds appropriated after the bill's enactment, facilitating increased development of affordable housing.