231-235 Diamond St, San Francisco, CA 94114

The three-unit property at 231-235 Diamond Street, owned by Christopher Sim, is a two-story multi-family residential building constructed in 1910 in the Eureka Valley/Dolores Heights neighborhood. The building has undergone several significant improvements over the past decades, with the most recent being a completed re-roofing project in November 2023 costing $15,000. A major structural upgrade was completed in December 2021, involving a new site retaining wall and voluntary seismic retrofit of the front garage, with a substantial investment of $100,000.

Historical records show various maintenance work including concrete repairs in the backyard in 2001, and multiple instances of sheetrock repairs in 1992 and re-roofing work in 1990. The building has had minimal violations and complaints over the years, with only one notable security violation in 2002 regarding self-closing devices and primary locking mechanisms on exterior doors, which was resolved within two months. A 2022 complaint about unpermitted construction work was filed but has since been marked as not active.

The property has undergone routine housing inspections in 1996 and 2002, both of which were resolved. The Planning Department approved a new retaining wall construction within the rear yard, confirming compliance with local regulations and noting no related complaints. A fire-related complaint from 2008 was investigated and found to have no merit. Overall, the building's records indicate regular maintenance and compliance with safety requirements, with no significant ongoing issues noted.