161 11th Ave, San Francisco, CA 94118

161 11th Avenue is a 2-story, 6-unit multi-family residential building constructed in 1963, currently owned by the Tam Chu Family Trust. The building has undergone several significant improvements in recent years, most notably completing a mandatory soft-story retrofit in 2017 at a cost of $75,000, followed by a revision in 2019 to replace the moment frame with a special moment frame. In 2019, units 3 and 6 received substantial renovations including kitchen and bathroom remodels, new lighting, and plumbing upgrades including radiant heat systems and boilers, totaling approximately $148,000 in work.

The building's maintenance history shows attention to infrastructure, with earlier improvements including window replacements in 2005 (16 windows) and reroofing work in 2004. The property has experienced some fire safety compliance issues in the past, with violations recorded in 2000 and 2007 regarding fire extinguisher maintenance and smoke enclosure door closers, though these were all properly abated. A more serious concern was documented in 1995 regarding a hole in the ceiling and a broken window, but this complaint was resolved within a month.

The building has maintained active compliance with recent Housing Inspection Services requirements, and no current violations or complaints are on record. Recent external issues reported through 311 calls have been limited to general neighborhood concerns such as graffiti, abandoned vehicles, and street cleaning matters, none of which directly impact building safety or habitability. The property is classified as Tier 3 under San Francisco's Soft Story program, with all required work completed and Certificates of Final Completion issued.