415-417 Silver Ave, San Francisco, CA 94112

The property at 415-417 Silver Avenue is a two-unit, two-story multi-family residential building located in the Excelsior neighborhood. Built in 1907 and currently owned by John K. Ng and Lisa X. Liu, this flats/duplex-style building has experienced several notable events throughout its history.

In 2008, the property faced regulatory action when a complaint was filed regarding unauthorized modifications, including relocated laundry facilities and construction of storage sheds and roof decks. This resulted in a $7,000 permit to remove the unauthorized structures, which was completed by June 2008. Prior to this, in 2005, there was another complaint about construction work being performed without proper permits. Most recently, the building has been the subject of multiple 311 calls from late 2024 to early 2025, primarily related to garbage and debris on the property and sidewalk, as well as parking violations.

There are currently four open noise-related complaints from December 2024 and January 2025. The property also had a fire alarm system issue in November 2015, which was promptly corrected on the same day. A sidewalk repair permit was issued in December 2006, and in 1988, an aluminum window installation was completed. Additionally, the building was recently involved in two tenant buyout transactions at 407 Silver Avenue in mid-2024, totaling $28,300 for three tenants, though this may refer to a different address than the one under primary consideration.