1339-1343 12th Ave, San Francisco, CA 94122

The three-unit multi-family residential building at 1339-1343 12th Avenue in San Francisco's Inner Sunset neighborhood is a three-story flats/duplex structure built in 1907, currently owned by the Gordon/Young Family Trust. The property has undergone several significant maintenance and improvement projects over the years, with the most notable being a substantial foundation repair in 2013 that involved replacing approximately 45 feet of dilapidated foundation with reinforced concrete at the building's rear section, costing $15,000. This work was accompanied by electrical improvements including the installation of a grounding electrode.

The building has received periodic roof maintenance, with reroofing projects documented in 1994 and 2010, demonstrating ongoing attention to basic infrastructure upkeep. The property has undergone two routine housing inspections of common areas (in 2001 and 2011) which were completed without any noted ongoing issues. While there have been multiple 311 calls related to the property's vicinity since 2009, these primarily concerned external matters such as street trees, graffiti on a pole, and waste receptacle management, rather than building-specific concerns.

A sidewalk defect noted in 2010 regarding lifted sidewalk near a private tree was documented and resolved. The most recent documented incident was a damaged tree report from October 2021, which was addressed by the Department of Public Works. The building's maintenance history suggests regular upkeep of major systems, with no recorded complaints specifically about the building's internal conditions or safety systems in recent years.