423-425 20th Ave, San Francisco, CA 94121

The Leong Family Trust owns this two-story, three-unit multi-family residential building located at 423-425 20th Avenue in the Central Richmond neighborhood. Built in 1923, this flats and duplex-style structure has undergone several significant improvements over the years, including a complete reroofing project in 2008 costing $5,800, the installation of vinyl siding over stucco in 2006 costing $20,516, and comprehensive window upgrades with the installation of 40 aluminum windows between 1990 and 1992.

The building experienced a cluster of safety and security issues in October 2002, with multiple violations noted regarding egress obstructions, security requirements, and smoke detection deficiencies, though these were all successfully abated by December 2002. Most recently, there has been a notable pattern of parking enforcement issues surrounding the property, with eight documented cases of driveway blocking between October and November 2023, resulting in at least two citations being issued.

The building's maintenance record shows regular upkeep of essential systems, though the structure's age (100 years old) should be considered in relation to system performance expectations. Two routine housing inspections were conducted in 2002 and 2010, with no significant ongoing violations currently on record. The most recent building permit activity recorded was a street space permit issued in 2013 for $1.00, though the nature of this work is not specified.