1418-1420 Balboa St, San Francisco, CA 94118

The two-unit residential building at 1418-1420 Balboa Street, owned by the Chan Family Trust, is a two-story flats and duplex structure built in 1922 in San Francisco's Central Richmond neighborhood. The property has undergone several documented modifications over the years, including a completed transformation of its front facade in 1989 where bricks were replaced with stucco, and a door jamb modification completed in 1984.

Historical maintenance records show a reroofing project initiated in 1997, though this permit has since expired, and a street space related permit was issued in 2011 for a nominal fee. The building's recent history of 311 calls between 2009 and 2020 primarily relates to urban maintenance issues rather than building-specific concerns, including reports of illegal postings, an abandoned vehicle incident, street cleaning needs, and a defaced street sign, all of which were resolved through normal city processes.

The most recent incident occurred in September 2020, involving multiple illegal postings, which was successfully addressed by the Department of Public Works. While these urban maintenance calls represent general neighborhood concerns, none appear to directly impact the building's structural integrity or resident safety.