643-647 Castro St, San Francisco, CA 94114

The three-story, six-unit multi-family residential building at 643-647 Castro Street, owned by Alison M. Takata, has undergone several significant improvements since its construction in 1900. Most notably, the building completed a mandatory soft-story seismic retrofit in 2016 at a cost of $54,495, which included the installation of Ufer grounding wire as part of the retrofit electrical work. Other recent improvements include a reroofing project in 2017 costing $16,980, and a street space permit issued in 2016.

The building has also experienced some maintenance challenges and safety concerns over the years. In January 2023, the property received multiple violations related to damaged ceilings and compliance affidavits, though these were abated by February 2023. Previous issues from 2005-2006 included problems with windows, egress obstruction, heating system, ceiling damage, and concerns about standing water in the garage, which prompted several violation notices. Earlier complaints from 1994 mentioned bathroom ceiling leaks and substandard rear stairs, while past violations in 1988 (cancelled) involved repairs to rear stairs and decks.

The building's maintenance history shows attention to safety improvements, particularly through the completion of the soft-story retrofit program, categorized as Tier 3 with work completed and Certificate of Final Completion issued. Various electrical upgrades has been performed throughout the years, including back-side building stair lights installation in 2007, and kitchen and bathroom electrical work in 2006. The property has also experienced recurring issues with the surrounding area, as evidenced by multiple 311 calls for street cleaning and waste removal between 2020-2024, though these are not directly related to the building's internal conditions. Recent infrastructure work and repairs suggest ongoing maintenance and improvements to the building, with no active violations currently pending as of October 2023.