1550-1552 12th Ave, San Francisco, CA 94122

The property at 1550-1552 12th Avenue is a two-story, four-unit multi-family residential building constructed in 1904, currently owned by Yu Yan Yan. The building's history shows significant renovations and maintenance work over the past two decades, with major improvements completed in 2014 including a kitchen relocation, bathroom remodels, bedroom conversion, and associated electrical and plumbing updates on the second floor, totaling approximately $30,000. Prior to that, the building underwent several important repairs, including a $7,500 reroofing project completed in 2001 and a gas houseline extension installed in 2012.

Of particular note is a violation case from February 2000 (complaint #200001861) regarding unauthorized unit conversions and several safety concerns, including inadequate wiring, accessible fuse boxes, and fire hazards. This case was officially abated by September 2000, with some related violations also resolved through multiple permits in June 2000. The property has undergone regular maintenance since then, including sidewalk repairs in 2009 and various street space permits.

More recently, there have been several 311 calls regarding tree maintenance issues between 2019-2024, though most of these have been resolved or determined to be normal growth conditions. The most recent recorded issue was a parking violation on the sidewalk in September 2024, which was resolved with a citation. The building appears to have maintained compliance with safety codes since the 2000 violation case, with no active violations on record.