San Francisco County is poised to take a significant step towards sustainability with the introduction of a new ordinance that mandates all electric systems in buildings undergoing major renovations. This legislation, presented by President Rafael Mandelmann, aims to expand the city's existing all electric new construction ordinance to include substantial renovations, ensuring that buildings undergoing major upgrades will not rely on natural gas.

The ordinance, which is set for consideration by the Board of Supervisors on July 29, 2025, is part of San Francisco's broader climate action plan, which targets net zero greenhouse gas emissions by 2040. Buildings are responsible for over 40% of the city's emissions, making the transition to all electric systems crucial for meeting these environmental goals. The legislation defines major renovations as projects that involve significant structural and mechanical upgrades, requiring property owners to install all electric systems during these renovations.

Mandelmann emphasized the importance of this initiative in reducing indoor pollution and enhancing the health and safety of residents. The ordinance includes exceptions for certain cases, such as commercial food establishments, nonresidential to residential conversions, and buildings that have recently undergone major system replacements.

The Bay Area Air Quality Management District is also set to enforce rules banning the installation of natural gas appliances starting in 2027, further aligning with the city's sustainability objectives. The development of this ordinance has involved extensive collaboration with various stakeholders, including developers and environmental advocates, ensuring that their feedback has been incorporated into the final proposal.

As San Francisco moves forward with this legislation, it marks a significant commitment to environmental responsibility and public health, setting a precedent for future building practices in the region.