1343-1345 8th Ave, San Francisco, CA 94122

The property at 1343-1345 8th Avenue in San Francisco's Inner Sunset neighborhood is a two-story, three-unit multi-family residential building constructed in 1923, currently owned by the Woon Yee Yee Trust. The building has experienced recurring sewer line issues, with eight documented sewage backup incidents between 2016 and 2021, though one significant repair was completed in 2014 involving the replacement of a 20-foot sewer line and house trap.

A major concern was identified in 2010 regarding an unauthorized basement unit that reportedly added illegal living space, kitchen, and bathroom facilities, along with several associated safety violations including questions about fire rating materials, smoke detectors, and proper light/ventilation requirements; these violations remain active as of the latest record. The building underwent a routine housing inspection in 2002 that revealed multiple safety concerns, including issues with the fire escape ladder, fire safety equipment, gas meter instructions, back stairs/decks, exit hallway obstructions, and more, all of which were apparently resolved by April 2002. The property's maintenance history shows ongoing infrastructure challenges, particularly in the plumbing system, with multiple sewer-related service calls in 2016-2017 and the 2014 sewer line replacement work.

While some historical violations have been addressed, the presence of active violations from 2010 related to the unauthorized basement unit and various safety features raises ongoing compliance concerns. The building's documented history includes one recent parking-related incident from 2021, though this is unrelated to building conditions or systems. The property management has apparently taken steps to address some historical violations, as evidenced by the 2014 plumbing repair and the resolution of many 2002 inspection issues, but the persistence of certain violations suggests some building code compliance challenges remain.