3907 California St, San Francisco, CA 94118

3907 California Street is a three-unit, three-story multi-family residential building located in San Francisco's Inner Richmond neighborhood, constructed in 1988 and currently owned by Michael L & Connie L Lum Family. The building has undergone several significant renovations and repairs over the years, most recently in July 2024 when substantial work was completed in Apartments 1 and 3, including kitchen and bathroom renovations, and ceiling repairs in Apartment 2 costing $48,000.

A concerning pattern emerged in 2023-2024 when a tenant filed a complaint regarding unpermitted repair work following November 2023 water damage originating from the unit above, affecting their ceiling and fire safety systems. This incident triggered multiple 311 calls and required repairs that were reportedly not initiated until months later. The building's history shows previous fire safety issues in 2003, when inspections revealed problems with emergency exit lights, smoke detectors, and emergency exits, though these violations were resolved within two weeks.

Earlier structural improvements include reroofing work completed in 2009 and the installation of a Waupaca private residence elevator in 1987. The property has maintained reasonable upkeep in terms of building structure and systems, though the recent water damage and associated repair permit compliance issues raise concerns about attention to current building codes and proper permitting procedures. The surrounding area has experienced typical urban maintenance issues as documented in multiple 311 calls between 2018 and 2023, primarily relating to street cleaning and parking enforcement matters.