526-528 21st Ave, San Francisco, CA 94121

The two-unit residential building at 526-528 21st Avenue in San Francisco's Central Richmond neighborhood is a two-story flats and duplex structure built in 1987, currently owned by the Wu/lin Family Trust. The property has undergone several notable improvements since its construction, including the installation of a solar panel system in 2012 consisting of 12 roof-mounted PV modules with a total rating of 2.832 kW, demonstrating a commitment to sustainable energy.

More recently, in 2016, kitchen cabinets were replaced throughout the unit at a cost of $8,000, though this work was done as an in-kind replacement without altering the layout. The building has experienced some regulatory challenges, most significantly in July 2017 when a complaint was filed regarding the construction of an alleged illegal structure at the rear of the building, including the installation of a cement wall in place of a wooden fence, though this complaint is currently listed as not active.

The property underwent its original development transition from a single-family dwelling to its current form in 1985, following the proper demolition and building permit procedures. Recent issues near the property have primarily involved parking violations, with two incidents reported in 2024 for sidewalk parking and driveway blocking, though neither could be validated by responding officers. While these parking issues are typical for urban areas, they occurred on public streets and are not directly related to the building's management or condition.