1307-1319 20th Ave, San Francisco, CA 94122

The property at 1307-1319 20th Avenue in San Francisco's Central Sunset neighborhood is a 3-story mixed-use building constructed in 1925, containing 18 residential units and commercial space. The building recently completed significant fire safety upgrades in 2023, including a new fire alarm system with low-frequency sounders and smoke detectors, following several fire safety violations in 2023-2024 related to alarms, exits, and extinguishers. The building underwent a major renovation in 2022 (at a cost of $199,000) to make substantial changes including adding staff and children's bathrooms, a break room, and a fire corridor.

In 2018, the property completed required soft-story seismic retrofitting work for both its residential and commercial spaces. Recent concerns include active complaints from late 2024 regarding electrical issues, heating problems, plumbing leaks, and mold in Unit 202, as well as a broken intercom system affecting resident access to deliveries and visitors. The commercial portion of the building has experienced multiple periods of vacancy, with several complaints about vacant storefronts between 2017-2020, before becoming the location of a Cricket wireless store in 2019.

The property has maintained relatively consistent compliance with major safety requirements, completing all required fire system upgrades and soft-story retrofitting. There have been multiple fire safety violations recorded between 2019-2024, though most have been promptly addressed. Recent complaints regarding garbage and debris in the vicinity of the property have been documented in early 2025, suggesting ongoing maintenance challenges. The building's current owner, George and Jenny Chang, acquired the property through a 2006 revocable trust, and it remains classified as a multi-family residential building with commercial space.