450 Detroit St, San Francisco, CA 94131

The three-unit, 2-story multi-family residential building at 450 Detroit Street in Sunnyside, owned by Chan Tak Kwong & Sophia S L, has a documented history dating back to its 1938 construction. The property experienced significant maintenance issues in late 2008, leading to multiple building violations including problems with water damage, stairs, and interior surfaces.

These violations, which were all resolved by July 28, 2011, triggered several repairs including stair replacements, siding replacement, and various structural improvements in 2009, with costs totaling approximately $26,000. The building underwent reroofing in 2001 and had a solar PV system installed in 2015, though the permit shows as expired.

More recent history indicates a complaint in February 2017 regarding loud noises and demolition work without visible permits, and earlier complaints in 2009 concerning unauthorized removal of a staircase and debris management issues. Throughout 2024, there have been multiple sanitation-related incidents reported through 311 calls, primarily concerning garbage, debris, and graffiti in the vicinity of the property, indicating some environmental concerns in the immediate area. Notably, all building violations and major repair issues from 2008-2011 appear to have been properly addressed, with no active building violations on record as of October 2023.