4519-4521 Mission St, San Francisco, CA 94112

The three-unit, three-story mixed-use building at 4519-4521 Mission Street in the Excelsior neighborhood, owned by Theodore Huang and Li Li Han, has experienced several significant maintenance and compliance issues since its construction in 1916. The property has faced ongoing challenges with graffiti in recent years, with eight documented incidents between 2022 and 2024, all involving offensive content on the commercial building portion.

More concerning are the historic habitability issues, including a 2014 complaint about inadequate heating, water leaks, mold, and carpet damage in one unit; a 2007 report of bad odors in the bathroom; and serious maintenance problems noted in 1996 involving rotting window frames and termite damage. Compliance issues have also been recorded, including unauthorized uses of the commercial space for storage and amusement devices, as well as violations related to operating hours and storefront visibility, though these matters were ultimately closed and abated.

The building's maintenance history includes some remedial work, such as a 2007 project replacing rear siding at a cost of $16,500. While there was one fire safety complaint about blocked exits in 2010, this was determined to have no merit.