331 20th Ave, San Francisco, CA 94121

The three-unit, two-story multi-family residential building at 331 20th Avenue in the Central Richmond neighborhood, owned by the Tam Family Trust, was constructed in 1975 and has a relatively sparse maintenance history. Significant building improvements include a complete reroofing project completed in 1991, and the attempt to install aluminum windows in 1984, though that permit expired without record of completion.

The building has undergone two routine housing inspections by Housing Inspection Services in 2002 and 2009, both of which were resolved promptly. The property has experienced recurring issues with parking violations in recent years, particularly in 2024, with multiple reports of vehicles parking on sidewalks, though most cases resulted in officers either being unable to locate the vehicles or issuing verbal warnings. There was also one instance of a driveway blocking violation in May 2024.

Environmental maintenance issues were documented in July 2024 involving garbage and debris on the street, including human waste or urine, which was subsequently resolved. An unrelated tree maintenance request was recorded and resolved in September 2016 concerning an overgrown tree. While the building's permit and complaint records show minimal structural issues over the years, the recent pattern of parking violations in the immediate vicinity appears to be the most pressing ongoing concern, particularly given the high frequency of such incidents in 2024 alone.