San Francisco Amends Health Code for Enhanced Ventilation in New Buildings

The San Francisco Department of Public Health is set to amend the city's health code to enhance ventilation standards for new buildings and major renovations, particularly those that serve sensitive uses such as residential units, schools, and childcare facilities. This decision comes in response to the recently approved 2025 California Building Energy Efficiency Standards, which will take effect on January 1, 2026. The new state regulations require all multi-unit residential buildings to implement enhanced ventilation systems, aligning local requirements with state law.

During a recent government meeting, Acting Director of the Environmental Health Branch, Jen Kallerward, outlined the proposed amendments to Article 38 of the San Francisco health code. The changes will clarify that all new buildings and major renovations within the Air Pollution Exposure Zone (APES) must certify that their ventilation systems can maintain positive pressure and utilize MERV 13 or equivalent filtration to effectively remove particulate matter.

Currently, the city's enhanced ventilation standards apply only to buildings within the APES, which encompasses areas with higher levels of air pollution. However, with the new state standards applying citywide, the city plans to remove multi-unit residential buildings from the local definition of sensitive uses, thereby streamlining the regulatory process.

Kallerward emphasized that the amendments will not affect the APES or the use of the zone by other agencies. The Department of Building Inspection (DBI) will take over the review of multi-unit residential permits starting in 2026, ensuring that all new developments comply with the updated state requirements.

The meeting also addressed potential concerns regarding the transition from local to state regulations. City officials reassured attendees that the enforcement of the new standards would be based on the date permits are filed, preventing any gaps in compliance for ongoing projects.

In conclusion, the proposed amendments to the health code reflect San Francisco's commitment to improving air quality and public health while aligning with state regulations. As the city prepares for these changes, officials are focused on ensuring a smooth transition for developers and maintaining the health and safety of residents.