643-645 Minna St, San Francisco, CA 94103

The three-story multi-family residential building at 643-645 Minna Street, constructed in 1915 in San Francisco's South of Market neighborhood, has undergone significant renovations and faced multiple compliance issues over its history. Major renovation work was completed in 2006, including comprehensive kitchen and bathroom remodeling in all three units, electrical system upgrades, and plumbing improvements totaling over $100,000. These improvements included relocating kitchens, updating bathrooms, and installing new windows.

In 2015-2016, the building experienced several concerning issues, including blocked fire egress, water damage, mold concerns, and security violations related to locks and fire extinguisher maintenance, all of which were eventually resolved by early 2016. A notable complaint from December 2015 suggested the presence of additional unauthorized units and concerns about egress obstruction by trash receptacles. The property's recent history shows ongoing maintenance challenges, with multiple violations documented in 2010 and 2015 related to fire safety, security, and general building maintenance.

While the building underwent substantial improvements in 2006-2007, including electrical system upgrades to support modern appliances, it has faced recurring issues with fire safety systems, ventilation, and proper maintenance of common areas. The property has been the subject of numerous 311 calls in recent years (2024-2025) regarding street issues such as encampments, graffiti, and debris, though these are more related to the surrounding area than the building itself. There is also a planning record indicating an intent to add an additional dwelling unit on the ground floor, though this appears to have been marked as cancelled/withdrawn.