1801 Jefferson St, San Francisco, CA 94123

The O'Brien Family Trust Dtd 20 owns this 18-unit, 3-story multi-family residential building located at 1801 Jefferson St in the Marina neighborhood. Built in 1927, the property has undergone several significant improvements over the years, with the most recent being a comprehensive fire alarm system upgrade completed in January 2024 at a cost of $46,255, including the installation of low-frequency sounders in sleeping areas to comply with current safety codes.

The building has a history of addressing fire safety concerns, with multiple fire complaints and violations being corrected, including issues related to fire extinguishers, alarm systems, and sleeping area requirements between 2009 and 2024. The property has undergone various major renovations, including foundation work, window replacements, and roofing projects in the late 1980s and early 1990s.

While the building has maintained a generally active response to safety concerns, including promptly addressing fire safety issues identified through inspections and complaints, there have been some recurring themes in the building's maintenance history. The building's most recent fire safety upgrade in early 2024 demonstrates ongoing commitment to resident safety, and the property management has typically responded promptly to violations and complaints when they occur. Recent 311 calls from 2024 have primarily concerned external issues like abandoned vehicles and street cleaning matters, rather than building-specific concerns.