343 20th Ave, San Francisco, CA 94121

This two-unit residential building, located at 343 20th Avenue in San Francisco's Central Richmond neighborhood, is a two-story flats and duplex structure built in 1907 and currently owned by Amanda Julianna Chow. The property has undergone several maintenance and improvement projects over the years, including a complete kitchen remodel in 2002, replacement of back stairs in 1999, and street space and sidewalk repairs in 2015. Significant infrastructure work was completed in April 2015, including replacement of the building's sewer system and installation of a new water service and meter.

The building's roof was replaced in 1996, though this permit expired. The property has experienced recurring parking issues, with multiple complaints and enforcement actions documented between 1997 and 2024. A notable cluster of parking enforcement calls occurred in April 2024, involving both a BMW and a Volkswagen vehicle on or near the property.

The building has also faced some maintenance challenges, particularly in the mid-1990s, when there were reports of peeling paint possibly related to water damage, raising temporary concerns about lead exposure. Recent maintenance issues have primarily involved external matters, such as garbage and debris management, with multiple reports to city services in 2024. The most recent documented building permit activity was the 2015 street space and sidewalk repair, while the last major plumbing work related to sewer and water infrastructure was also completed in 2015.