454 20th Ave, San Francisco, CA 94121

454 20th Avenue is a two-story, 6-unit multi-family residential building located in the Central Richmond neighborhood, owned by the Ling Family Trust and constructed in 1962. The building has experienced significant maintenance and safety events, most notably a fire incident in 2006 that affected units 5 and 6, requiring substantial repairs including $250,000 in repairs to the roof, exterior sheathing, and drywall, followed by electrical rewiring work to replace damaged fixtures throughout the building.

The fire incident led to a series of permits that were ultimately not completed properly, resulting in active building violations dating from March 2008 regarding uncompleted fire damage repairs and fire alarm system maintenance. These violations have persisted through multiple notices of violation and compliance notices, though some permits related to the fire repairs have been documented as completed, including electrical work in May 2006. The building has undergone several significant maintenance works including reroofing projects in 2017 ($14,000) and earlier in 2003 ($11,000), and has had to address various building code compliance issues over the years.

Recent history shows routine issues such as garbage and debris problems, with the most recent complaint in November 2024 regarding an abandoned refrigerator, though this was promptly resolved. The property has maintained a record of responding to regular housing inspections, with a 2010 routine inspection being completed successfully. While some routine maintenance and violation issues have been resolved over the years, the historical fire-related violations from 2008 remain active as of the most recent records available.