1664 Washington St, San Francisco, CA 94109

The three-story, six-unit multi-family residential building at 1664 Washington Street in Nob Hill, built in 1913, has undergone several significant safety and maintenance upgrades in recent years. Most notably, the property completed a mandatory soft-story seismic retrofit in 2017 (CFC issued), and in 2019, the building received comprehensive fire safety improvements including a fire alarm system upgrade with sprinkler monitoring and low-frequency sounders in sleeping areas, along with the installation of new fire sprinklers in Unit 7 during its remodel.

The building has seen regular maintenance and modernization efforts, including a water heater replacement in 2021 and a substantial remodeling project in Unit 7 in 2017 that converted part of the unit to storage and relocated the kitchen. Historical records show the building has had its share of maintenance challenges, particularly in 2011 when violations were documented regarding exterior painting, staircase repairs, and various plumbing/electrical issues, all of which were subsequently addressed.

Earlier fire safety violations from 2001 were also resolved, which included concerns about fire extinguisher maintenance and security bars. The most recent building complaint as of 2025 relates to an inactive boiler permit renewal request. The property's maintenance history indicates active management response to safety requirements, particularly regarding seismic safety and fire systems, with no recent active violations related to these critical systems.