520 Natoma St, San Francisco, CA 94103

Located in San Francisco's South of Market neighborhood, 520 Natoma Street is a 3-story, 12-unit multi-family residential building constructed in 1911, currently owned by Usui Minako. The property has undergone several significant renovations and repairs over the past two decades, including a complete electrical rewiring of all 12 units in 2005, multiple unit renovations (notably Unit #9 in 2019), and most recently, a door and sidelites replacement in October 2023 costing $14,490.

The building's systems have seen various updates, including a boiler replacement in 2022 and roofing work completed in 2005. The building has faced several fire safety concerns over the years, with multiple fire violations and complaints regarding alarm systems, extinguishers, and emergency lighting between 2013 and 2023, though these issues appear to have been consistently addressed and abated. Historical concerns from 2004-2005 included various fire safety requirements such as smoke enclosure door closers and fire escape maintenance, which were also resolved.

The property has experienced several routine inspections and a few more serious issues, including a sewage backup in 1996 and concerns about possible illegal units in 2006. Recent 311 calls from late 2024 indicate ongoing challenges with street cleaning and debris management in the vicinity, and there is currently one open noise complaint from December 2024. The building's maintenance history shows a pattern of addressing both routine upkeep and more significant renovations, with particular attention paid to fire safety systems and unit modernization.