452-454 Clementina St, San Francisco, CA 94103

The 6-unit, 3-story multi-family residential building at 452-454 Clementina Street in the South of Market neighborhood, owned by the Allison Koo Living Trust, was constructed in 1909 and has undergone several significant improvements over the years. Most notably, the building completed mandatory soft-story seismic retrofitting in 2014 (at a cost of $20,000) to enhance structural safety, achieving Tier 3 compliance with a Certificate of Final Completion issued.

The property has maintained its systems through various upgrades, including reroofing in 2014 ($8,000), comprehensive unit renovations in 2007-2008 ($24,000-$35,000) including kitchen and bathroom remodels, and electrical system upgrades. Historical records show attention to basic building safety and maintenance, with a fire sprinkler installation in 1991 (though this permit expired) and termite repairs in the same year. Recent concerns about the building have been relatively minimal, with a broken second-floor window reported in March 2019, though this complaint was ultimately marked as not active.

The building underwent routine safety inspections in 2008 and 2011, which were resolved without notable findings. A fire code violation was recorded in March 2020 regarding sprinkler service, but this was later abated. The property has experienced recurring issues with nearby encampments, as evidenced by multiple 311 calls throughout 2024, though these are external to the building itself and primarily relate to street conditions rather than building management.