503-509 20th Ave, San Francisco, CA 94121

The property at 503-509 20th Avenue in San Francisco's Central Richmond neighborhood is a 4-unit, 2-story, multi-family residential building constructed in 1920. The building has undergone several significant maintenance and upgrade projects over recent years, with the most recent being the installation of James Hardie siding in late 2023, costing $45,000, which was completed in November 2023 after initial approval in October.

Historical maintenance records show various improvements including reroofing in 1997 and stair repairs in 2007. The building has experienced several issues requiring attention, most notably during a 2002 routine inspection that revealed multiple violations including problems with stairs, plumbing, electrical systems, fire safety concerns, and sanitation issues, all of which were abated by January 2003. More recent inspections in 2010 and 2014 have shown ongoing concerns, with the 2014 inspection identifying issues with handrails, carbon monoxide and smoke alarm compliance, and structural maintenance documentation.

The property has faced some maintenance challenges in recent months, with multiple 311 calls in 2024 reporting sewage backups, garbage and debris issues, and graffiti on the sidewalk. Two minor fire-related incidents were recorded, both with no civilian injuries. While the building has had its share of maintenance issues over the years, recent investments in exterior improvements suggest active management, though there remain some outstanding compliance matters from the 2014 inspection that appear to be still unresolved.