3420 San Bruno Ave, San Francisco, CA 94134

3420 San Bruno Avenue is a two-story, four-unit multi-family residential building constructed in 1964 in the Visitacion Valley neighborhood. The property has experienced several significant events, most notably a substantial fire incident in 2006-2007 that required extensive repairs including replacement of windows, doors, rear wall framing, and siding, as well as electrical and fire escape restoration, totaling over $44,000 in repairs.

The building underwent routine inspections in 2016-2017 that revealed several maintenance issues requiring attention, including mold problems in windows and walls, water damage, lead paint concerns, and various safety compliance requirements. More recent history shows ongoing maintenance needs, with multiple 311 calls in late 2024 primarily related to street cleaning issues, though these are external to the building itself. The property's documented history includes regular housing inspections, suggesting ongoing oversight by housing authorities.

The building's age and history of fire damage indicate previous safety concerns that required significant repairs, though there are no current active violations or complaints on file. The most recent work recorded on the property includes standard maintenance activities, with no major renovations or violations noted in recent years. The property has also had some infrastructure improvements, including electrical underground conversion work completed in 2004.