402-412 Duboce Ave, San Francisco, CA 94117

The three-story, 9-unit multi-family residential building at 402-412 Duboce Ave in Hayes Valley, owned by Duboce Partners LP, has undergone significant improvements since its 1908 construction. Most notably, the building completed mandatory seismic soft-story retrofitting in 2014 (Tier 3) at a cost of $53,000, demonstrating compliance with San Francisco's earthquake safety requirements. Recent renovations include substantial upgrades in 2017 to Unit 402, comprising bathroom additions, kitchen remodeling, and new electrical work totaling approximately $42,000, along with the installation of new furnaces for Units 402, 404, and 408.

The building has maintained regular maintenance practices, with historical records showing systematic updates to units including kitchen and bathroom renovations in Units 412A, 412B, and 406 in 2015, and boiler system updates in 2014. Recent concerns have centered around fire safety and building maintenance, with multiple violations recorded in 2023 regarding fire extinguisher maintenance, fire escape ladders, and gas shutoff tools, though these were abated by June 2023. The building has experienced recurring issues with blocked exits and fire extinguisher concerns, as evidenced by multiple fire complaints between 2021 and 2024. Historical complaints from 2006-2011 indicated various maintenance issues including security concerns, heating system problems, and interior surface repairs, though these were subsequently addressed.

The property has undergone several major improvements over the years, including a complete reroofing in 2015, kitchen remodels in multiple units, and the controversial 2016 permit application for converting storage and crawl space into an additional dwelling unit, which was ultimately cancelled. Recent 311 calls from late 2024 show recurring issues with exterior cleanliness, though these primarily relate to the surrounding area rather than the building itself. The building's fire incident history shows no civilian injuries, with most incidents being false alarms or minor cooking-related events. The comprehensive renovation history, adherence to soft-story requirements, and prompt response to recent violations suggest ongoing management attention to building maintenance and resident safety.