427-429 9th Ave, San Francisco, CA 94118

The two-unit residential building at 427-429 9th Avenue in San Francisco's Inner Richmond neighborhood is a two-story flats and duplex structure built in 1912, currently owned by James Chekyung Park and Jin H. The building's documented history shows several significant improvements during the 1980s, including a room addition at the rear (application filed in 1984), repairs for dry rot (1984), and the installation of six aluminum windows (1984), though the room addition permit ultimately expired.

A reroofing project was completed in 1992. The property has experienced recurring issues with the adjacent public infrastructure, as evidenced by multiple 311 calls between 2008 and 2020. Most notably, there was a serious sidewalk issue reported in April 2013 involving collapsed pavement and small holes, which was subsequently investigated.

The address has had several general cleaning concerns documented, primarily related to loose garbage on the street and sidewalk between 2014 and 2020, with most cases being resolved. Additionally, there were two infrastructure-related incidents in 2008 - a utility excavation and a pavement defect in 2019 - both of which were resolved. While these issues primarily pertain to public infrastructure rather than the building itself, they could impact resident access and the immediate surrounding environment.