470 21st Ave, San Francisco, CA 94121

The 4-unit, 2-story apartment building at 470 21st Avenue in the Central Richmond neighborhood, owned by T & M Chiang 1994 Survivors and built in 1972, has undergone two significant reroofing projects - one in 2010 costing nearly $12,000, and an earlier one in 1993, both successfully completed. The building experienced notable safety and maintenance issues in 2011, when multiple violations were documented including storage violations in the garage, a leaky hose bib, peeling paint in the second-floor stairwell, lighting issues, and concerns regarding emergency egress and utility safety equipment.

These violations, all filed on June 2, 2011, were serious enough to lead to final warning letters by December 2011, but were ultimately abated by January 31, 2012, following a director's hearing scheduled for February 2012. Earlier historical issues included complaints about mold on the ceiling (2002), deteriorating carpet (1999), and various maintenance concerns in 2002 that were all promptly resolved.

More recent history shows no building violations since 2012. The property has experienced periodic issues with public space maintenance and street cleaning as evidenced by multiple 311 calls between 2019 and 2025, primarily concerning sidewalk cleaning and parking enforcement, though these are more indicative of neighborhood conditions rather than building-specific problems. The most recent activity includes typical urban maintenance issues such as Christmas tree removal and parking enforcement, with the last recorded building-related complaint or violation dating back over a decade to 2012.