478-480 18th Ave, San Francisco, CA 94121

The two-unit residential building at 478-480 18th Avenue in San Francisco's Central Richmond district is a two-story flats and duplex property built in 1922 and currently owned by Edmund C K Lo and Anne L.

The building's maintenance history includes two significant permitted projects: a reroofing job completed in 1993, and construction work on a back porch raised 18 inches above grade with associated staircase repairs completed in 1984.

More recently, in April 2022, there was a parking-related incident involving a vehicle blocking a bicycle lane near the property, which was reported to parking enforcement and subsequently logged for data collection purposes, though this incident had no direct impact on the building's condition or resident safety. The limited permit and complaint history suggests either minimal recent renovations or improvements, or potentially an underreporting of work done, as well as indicating relatively few issues with the building's operation or resident concerns over the past several decades.