601 Potrero Ave, San Francisco, CA 94110

The six-unit, two-story apartment building at 601 Potrero Avenue in Potrero Hill, constructed in 1959, has undergone several significant safety and infrastructure improvements over the past decade. Most notably, the building completed a mandatory soft-story retrofit in 2017 (as a Tier 3 property), demonstrating the owner's commitment to earthquake safety.

Recent fire safety improvements include a comprehensive fire alarm system upgrade in 2021, which cost over $13,000 and involved replacing the fire alarm control unit, smoke detectors, and installing new low-frequency horns in compliance with San Francisco fire requirements. The building has experienced multiple fire alarm system activations since 2012, though these have all been classified as false alarms or system malfunctions with no reported injuries. Infrastructure improvements have included a complete reroofing in 2010 ($18,800), replacement of 18 windows with energy-efficient Milgard vinyl windows in 2010 ($13,050), and plumbing upgrades including sewer line work in 2011.

The building had a brief period of fire safety violations in late 2009 related to fire extinguisher maintenance, but these were promptly addressed and closed within weeks. Recent exterior maintenance issues have been mostly resolved through regular city services, with several reports of garbage and debris in the vicinity being addressed through street cleaning services. The most recent building-related service calls have primarily involved street lighting and parking concerns, rather than building-specific issues, indicating stable building conditions in recent years.