761 21st Ave, San Francisco, CA 94121

The two-unit residential building at 761 21st Avenue in San Francisco's Central Richmond district is a two-story flats and duplex structure built in 1923 and currently owned by Kwong Mo Ching. The property has undergone several significant improvements in recent years, most notably in 2015-2016 when a comprehensive bathroom remodel was completed in the lower unit, including plumbing work for a new sewer lateral installation, electrical upgrades for lighting and switches, and related bathroom improvements with a documented cost of $10,000.

The building's maintenance record shows attention to infrastructure as the main sewer lateral was replaced in January 2016, representing a important upgrade to the property's plumbing systems. The building's external environment has experienced various maintenance issues between 2021 and 2022, with multiple 311 calls reporting instances of loose garbage and general cleaning needs along the street and sidewalk. A sewer-related incident was documented in February 2021 involving a sewer vent issue, though this was subsequently resolved.

Historical records from 2011 noted two streetlight-related issues near the property involving a flickering and burnt-out light on a wooden pole, both of which were resolved. A double parking incident was reported in December 2019, and an abandoned vehicle case was documented in December 2021, though these were external to the property itself. While the building has experienced some environmental maintenance challenges, especially in the street cleaning category, the property itself has received necessary infrastructural upgrades, particularly during the 2015-2016 renovation period.