258-260 9th Ave, San Francisco, CA 94118

The two-unit residential building at 258-260 9th Avenue in San Francisco's Inner Richmond district is a two-story flats and duplex structure built in 1909, currently owned by William W Wong and Marian C Y. The building's maintenance record shows three significant roofing interventions over the past 33 years, with the most recent reroofing project completed in 2010 at a cost of $20,305, and earlier projects documented in 1995 and 1990.

The property has experienced various street-level issues in recent years, including multiple reports of parking violations on the sidewalk in 2022 and 2018, and several instances of urban maintenance concerns such as overgrown trees (2021), graffiti (2020), and hazardous materials (2018). A water leak incident was recorded in 2015 that was promptly resolved, and there were some sign-related issues requiring attention in 2014, including defacement and graffiti.

The building appears to have undergone periodic interior improvements, as evidenced by the 1990 permit for shower walls, tub surround, and kitchen ceiling renovations. While the property has experienced various maintenance and infractions typical of urban locations, there are no recorded incidents suggesting serious safety concerns or structural issues with the building itself.