4169-4171 Cesar Chavez St, San Francisco, CA 94131

The two-unit residential building at 4169-4171 Cesar Chavez Street in Noe Valley, owned by Timothy Lau Chakyan, is a two-story flats and duplex structure built in 1956. The most recent significant maintenance work was completed in August 2024 with a $15,000 re-roofing project.

The building has experienced several notable safety-related incidents over the years, though fortunately none resulted in civilian injuries. There have been multiple carbon monoxide detector activations between 2014 and 2021, including instances of false alarms and one caused by malfunction. The building also had a water/steam leak incident in 2014 and a smoke detector activation with no fire in 2017.

The property's maintenance history includes some external infrastructure issues, with a sewage backup incident reported in March 2021 that required PUC Sewer Operations intervention and was successfully resolved. Two sidewalk cleaning incidents were recorded in 2014 and 2020, the latter occurring during ongoing roadway trenching work related to a permitted project. Planning records indicate at least two completed remodel and addition projects, one associated with developer Warner Schmalz and another listed as "fNone." The most recent known building permit activity, completed in August 2024, involved substantial roofing work valued at $15,000, suggesting proactive property maintenance by the current owner.