100 20th Ave, San Francisco, CA 94121

The three-story, 9-unit multi-family residential building at 100 20th Avenue, built in 1916, has undergone several significant improvements and faced various maintenance challenges over the years. Most recently, in November 2024, the building initiated the replacement of its fire alarm system to comply with current fire marshal requirements.

The property completed its mandatory soft-story seismic retrofit in 2018, achieving Tier 3 compliance with a Certificate of Final Completion issued. However, the building has experienced recurring issues with water damage and building maintenance, with multiple complaints documented between 2006 and 2022 regarding leaking windows, plumbing problems, and mold growth. A major cluster of building violations was recorded in January 2022, including issues with fire safety systems, sink and cabinet repairs, and window maintenance, though these were subsequently abated by July 2022.

The building's fire safety systems have been an ongoing area of attention, with violations recorded in 2023 and 2024 specifically related to alarm system maintenance, both of which were eventually corrected. Historical maintenance work includes a kitchen remodel completed in 2022, electrical grounding improvements in 2018, and various structural and cosmetic repairs dating back to the 1980s, including stucco repair and painting in 1985. The property has also shown responsiveness to external issues with multiple 311 calls in recent years regarding sidewalk parking, tree maintenance, and street cleaning, with most cases being resolved through appropriate channels.