531 28th Ave, San Francisco, CA 94121

The property at 531 28th Avenue is a three-story, 2-unit multi-family residential building constructed in 1936 in San Francisco's Central Richmond neighborhood, currently owned by Wong Gang Lun & Siu Ying. The building has undergone several significant improvements over the past two decades, including electrical system upgrades in 2005 with the installation of new 150-amp service, wiring, lighting, switches, receptacles, and circuits totaling over $100,000 in improvements. More recently, in 2018, substantial structural work was completed with voluntary strengthening of concrete walls and footings in the garage at a cost of $80,000.

The building has experienced multiple compliance issues, with three notable violations between 2004-2015 regarding unauthorized construction: grouting work at the south property line in 2004, an unpermitted roof structure in 2006, and an unauthorized lightwell structure in 2015. These violations were ultimately abated, with the last one resolved in 2015. The building's maintenance record shows attention to basic upkeep, including roof replacement in 2017. Multiple street space permits were issued between 2005-2006, indicating temporary use of public space for building-related activities.

Recent activity at the property includes three parking enforcement calls between 2019-2024, though these are not directly related to building conditions. An earlier planning proposal aimed to convert the single-family dwelling into a two-unit building, with plans for a redesigned facade and garage conversion, though it's unclear if this was ultimately executed. The property has required five street space permits since 2005, with the most recent in 2018 for the garage strengthening work. While the building has experienced multiple unauthorized construction issues in the past, there have been no recorded violations or complaints since 2015, suggesting improved compliance with building regulations in recent years.