734 20th Ave, San Francisco, CA 94121

The two-unit residential building at 734 20th Avenue in San Francisco's Central Richmond neighborhood, owned by Wang Huiping, is a two-story flats/duplex structure built in 1922. The property has undergone several significant improvements over the years, most notably a voluntary seismic retrofitting project completed in 2018 at a cost of $60,000, and a substantial electrical service upgrade to 200 amps completed in March 2023.

An earlier reroofing project from 2001 appears to have expired without proper completion. The building has experienced a few regulatory compliance issues, particularly in 2012 when both garage door installation and front window replacements were conducted without the necessary permits, though these violations were promptly addressed within weeks of being reported.

A more concerning incident occurred in March 2003, when a padlocked egress door was reported and secured within a day. The property's maintenance record shows some minor neighborhood-related incidents, including a parking violation in early 2020 that could not be validated by responding officers, and a street cleaning issue involving loose garbage in January 2019 that was resolved by city services.