431 33rd Ave, San Francisco, CA 94121

The two-unit residential building at 431 33rd Avenue in San Francisco's Outer Richmond district is a two-story flats and duplex structure built in 1924, currently owned by the Shintaku Marital Trust. The property has undergone several significant maintenance updates over its history, with the most recent being a substantial reroofing project completed in 2023 at a cost of $20,580.

Historical improvements include the installation of vinyl siding on the rear wall in 1994 and renovation of rear stairs and landings in 1986, both of which were completed successfully. The building's maintenance and incident history shows generally routine issues, with the most serious recent event being a sewage back-up discharge from the side sewer vent in June 2024, which was promptly addressed and resolved by the PUC Sewer Operations team.

Prior to this, the property's external environment experienced typical urban issues such as garbage overflow incidents in 2020 and 2021, as well as a graffiti incident in February 2020. The property has also required various municipal services including street lighting repairs (resolved in 2014) and electric service attention (resolved in 2009), though these were related to public infrastructure rather than the building itself. The relatively low frequency of serious incidents and the prompt resolution of maintenance issues are notable, with no recorded safety violations or emergency events on file.