1401 41st Ave, San Francisco, CA 94122

The property at 1401 41st Avenue in San Francisco's Outer Sunset neighborhood is a two-unit, two-story multi-family residential building constructed in 1945, currently owned by Lai King Ping & Li Suchang. The building has undergone several significant renovations and faced multiple compliance challenges over the past decade and beyond. Most recently, in late 2023, there were serious safety concerns regarding back stairwell repairs, with complaints about dangerous work practices and inadequate safety features, though a permit for stair repair was subsequently completed in November 2023.

The building has a documented history of unauthorized unit modifications and occupancy concerns, with multiple complaints suggesting possibly illegal unit conversions and excessive occupancy, including a 2025 complaint about an illegal basement unit with code violations. Between 2012-2013, the property underwent substantial legitimate renovations including kitchen legalizations, bathroom additions, and major system replacements (furnaces and water heaters) totaling approximately $63,000 in permitted work. The property has been subject to various inspections and investigations regarding potential illegal activities, including unauthorized short-term rentals in 2018, with listings found on multiple vacation rental platforms, and persistent concerns about illegal unit modifications.

There were also health-related complaints in 2018 regarding mold and odors. The exterior of the property has generated numerous sanitation service requests between 2023-2025, primarily involving abandoned furniture, debris, and other waste, though these were typically resolved promptly. Historic improvements to the property include a completed horizontal addition from 1997, and various electrical and plumbing upgrades have been properly permitted, including comprehensive electrical work to support new appliances and fixtures installed during the 2012-2013 renovations. The building's documented history reveals a pattern of both legitimate improvements and concerning compliance issues, particularly regarding unit modifications and occupancy, though recent building permits indicate ongoing maintenance and repair activity by the current owners.