359-361 15th Ave, San Francisco, CA 94118

The two-unit residential building at 359-361 15th Avenue in the Central Richmond neighborhood is a two-story flats and duplex structure built in 1910, currently owned by John Hachiya. The building's maintenance history shows several significant infrastructure updates over the past two decades, including a completed reroofing project in 1999, followed by street space and sidewalk permits in 2008 and 2009, though these were relatively minor with costs of only $1.00 each.

Of particular note is a sewer line replacement completed in June 2009, which followed a sewage backup incident in February 2009 involving a 4-inch sewer vent issue that has since been closed. More recently, there have been concerns regarding the property's exterior infrastructure, with an open and accepted 311 call from December 2017 reporting a sidewalk defect caused by tree root lifting.

While this is not an urgent safety issue, it represents an ongoing maintenance concern for the property. Based on the available records, the building's major systems appear to have received periodic attention over the years, with the most significant work occurring between 2008-2009 focusing on both the sewer infrastructure and exterior surface areas.