419-421 21st Ave, San Francisco, CA 94121

The two-unit residential building at 419-421 21st Avenue in San Francisco's Central Richmond neighborhood is a 2-story structure built in 1914, currently owned by 21st SF Property LLC. The property has undergone several notable renovations and faced various compliance issues over the past decade. Most recently, in 2021, the building underwent significant bathroom modifications, including the conversion of a hall bathroom into a master bathroom, though this work was initially part of a larger project that faced regulatory scrutiny.

In 2020, the property faced compliance issues regarding an unauthorized window installation at the south property line wall, which was eventually addressed through a permit to infill the non-compliant window. The building has a history of addressing structural and maintenance needs, including reroofing in 1993, exterior wall repairs in 1992, and various improvements in 1990 related to stucco application, stairway work, and earthquake damage. The property has experienced multiple code enforcement interactions, including a 2013 complaint regarding alleged illegal wiring and drainage systems, though this was resolved by August 2013.

While there have been no active violations in recent years, the building's recent history (2020-2021) involved several housing-related complaints that required official intervention and permits to resolve. The surrounding area has experienced typical urban challenges, with multiple 311 calls in recent years regarding street cleaning, parking issues, and debris, though these are not direct reflections on the building's condition or management. The most pressing recent issues were related to unauthorized modifications in 2020-2021, which required subsequent permits and corrections, but these have now been addressed and properly permitted. The building's ownership history shows attention to maintaining the property through regular repairs and compliance with city regulations, though there have been instances requiring remedial action to address unauthorized modifications.