5420 California St, San Francisco, CA 94118

The 2-story multi-family residential building at 5420 California Street, located in the Lake - The Presidio neighborhood, was constructed in 1924 and contains 5 units. The property, owned by the Wong Leonard & Agnes Trust, has undergone several significant improvements in recent years, most notably in 2016-2017 when substantial renovations were completed to convert ground floor rooms into an ADU, including the addition of a kitchen, dining room, and shower facilities, along with comprehensive electrical and plumbing upgrades. During this period, a new fire sprinkler system was also installed throughout the ground floor to enhance safety measures.

The building has maintained basic infrastructure through various maintenance works, including water heater replacements in 2008 and historical improvements such as reroofing in 2004. Recent housing inspections in 2024 revealed some maintenance issues that were subsequently resolved, including problems with six broken street-facing window frames (non-operable), a difficult-to-open kitchen door to rear stairs, and an oven repair requirement. The property has a history of addressing safety compliance matters, such as a 2005 violation related to combustible storage and fire sprinklers, which was resolved by March 2005. Earlier records show various routine inspections and minor repairs, including step replacement in the lightwell in 2008 and foundation work in 2016.

External to the building itself, there have been multiple 311 calls regarding street cleaning and waste management issues near the property, with the most recent calls concerning garbage debris in January 2025, though these are municipal rather than building-specific concerns. The most serious incident on record was a 730 system malfunction (possibly related to fire safety systems) with no civilian injuries recorded. The property has undergone significant modernization in recent years, particularly in 2016-2017, focusing on safety improvements and unit conversions, though some maintenance issues have persisted as evidenced by recent housing complaints. The building's documented history shows a pattern of regular maintenance and compliance with safety regulations, particularly following identified violations.