359-361 28th Ave, San Francisco, CA 94121

The two-unit, two-story multi-family residential building at 359-361 28th Avenue in San Francisco's Central Richmond neighborhood is a 1923 flats and duplex structure owned by the Esmeralda Chao Family Trust. The property has undergone several significant modifications and maintenance work over its history, most notably in 2002 when a substantial ground floor renovation was completed at Unit #361, adding two bedrooms, a laundry area, exercise space, and a handicapped bathroom at a cost of $45,000.

This period also saw the installation of a garage door opener in November 2002. Earlier in the building's history, in 1990, the property underwent repairs to address cracked stucco work that had been damaged during an earthquake.

One notable infrastructure incident occurred in March 2009, when there were side sewer issues reported through the 311 system, specifically water leakage problems that required intervention from PUC Sewer Operations and were subsequently resolved through cleanup efforts. The building's maintenance record shows no recent permits or work on file, with the most significant modifications occurring over two decades ago.