667-671 Commercial St, San Francisco, CA 94111

The 7-unit, 3-story multi-family residential building at 667-671 Commercial Street, owned by Jim Chun Yin Tang and constructed in 1907, has undergone several significant improvements and faced multiple safety challenges in recent years. Most notably, in 2023, there were multiple fire code violations recorded, including issues with alarm systems, sprinkler systems, and sleeping area requirements, with several violations remaining open as of late 2024.

The building has a documented history of fire safety concerns, with routine inspections in 2016 revealing issues with fire escape drop ladders, fire extinguishers, and smoke alarm systems. During 2014-2016, substantial improvements were made to the building's fire safety systems, including the installation of UL300 fire systems, replacement of fire sprinklers, and various fire safety equipment upgrades totaling over $25,000. The property has maintained an active presence in the local regulatory landscape, with recent administrative changes in 2023 allowing for a change of use under specific planning conditions.

The building underwent significant commercial improvements in 2014, including restaurant renovations with new ADA-compliant facilities and the installation of cooking equipment. Historical records show that the building received seismic retrofitting in 1996, addressing earthquake hazard reduction concerns, and underwent reroofing in 1997. Recent 311 calls from January 2025 indicate ongoing issues with garbage overflow, noise, and mobility device blocking on nearby sidewalks, though these are more related to the street context than the building's internal conditions.