517-523 Union St, San Francisco, CA 94133

517-523 Union Street is a two-story, 7-unit multi-family residential building constructed in 1906, currently owned by Li Family Trust. The property has experienced several significant maintenance and safety issues, most notably in 2005-2006 when multiple violations were documented and subsequently addressed, including problems with the central alarm system, fire extinguishers, stairs, and water heating system.

The building underwent necessary repairs totaling approximately $3,200 during this period, including stair repairs and addressing various safety violations. Earlier maintenance issues were documented in 2002, when repairs were needed for stairways and hallway plaster walls, and historical records show reroofing work was performed in 1993. The building's recent history (2024) shows multiple reports of garbage and debris on the property, with at least eight separate incidents recorded between September and December 2024, though most were promptly resolved by city services.

The property has undergone some administrative changes, including a lot split and variance approval, and a disapproved removal of an NCU termination date for a former garment shop use. While the building has had various maintenance issues in the past, records indicate that major violations have been resolved, with no active violations on file since March 2006. The most recent building inspection records have not shown any significant structural or safety concerns, suggesting improved maintenance practices.