The San Francisco Board of Supervisors adopted Resolution No. 229-25 on 2025/05/06 expressing strong support for California Assembly Bill 670 (Quirk-Silva), which would amend Government Code Section 65400 and add Section 65400.3 to allow jurisdictions to count converted affordable housing units toward their Regional Housing Needs Allocation (RHNA) targets. The resolution urges the California Legislature and Governor to enact AB 670, formally recognizing long-term conversions of existing multifamily buildings subject to 55-year affordability covenants as part of RHNA progress. It highlights preservation as a critical tool for maintaining and expanding affordable housing, citing San Francisco’s Small Sites Program and the Community Land Trust as successful local models. The resolution underscores how AB 670 provides state-level recognition and support, ensuring that naturally occurring affordable units and preservation efforts are fully credited in housing element progress reports.