1510-1514 20th Ave, San Francisco, CA 94122

The three-story multi-family residential building at 1510-1514 20th Avenue in San Francisco's Central Sunset neighborhood was built in 1954 and contains 12 units. The property, currently owned by Fred & Rosa S Suessmann 94 T, has undergone several maintenance and improvement projects over the years. Most recently, in 2024, there was a concerning complaint about toxic fumes affecting Unit #5 during renovation work in a neighboring unit.

Prior significant maintenance included a main line replacement from the foundation to the city trap (2017), installation of a bronze aluminum slider tempered glass in the courtyard (2006), and several roofing projects including a reroofing in 1993 and installation of roof stair coverings in 1988. The building has a history of maintenance issues, most notably a series of violations in May 2006 related to interior surfaces, including mold/mildew, damaged paint, and various plumbing and infrastructure concerns such as leaking faucets, floor covering issues, and problems with windows, sinks, and cabinets. These violations were officially abated by July 2006.

The property has also experienced two fire-related incidents, one in 2007 requiring correction of alarm system conditions, and another in 2008 that was found to have no merit. More recently, between 2023-2025, there have been multiple instances of garbage and debris issues reported in the vicinity of the building, with Recology and Public Works responding to these cases, though these external cleanliness issues do not directly reflect on the building's internal conditions. The building has undergone routine inspections in 1999 and 2002, and historical permits show various maintenance and upgrading work typical of buildings of this age and type.