318 23rd Ave, San Francisco, CA 94121

The two-unit residential building at 318 23rd Avenue in the Central Richmond neighborhood is a two-story flats and duplex structure built in 1941, currently owned by the Ching Lau Bypass Trust. The building's documented history spans several decades, with the most recent building-related activity being a street space permit issued in October 2016 with an associated cost of $1.00.

Earlier maintenance records show a reroofing project initiated in September 1998, though this permit eventually expired, and a garage renovation project that was intended to create a storage room annex in July 1987 was cancelled before completion. The property has had at least one documented incident requiring municipal attention, specifically a case of graffiti on the residential building reported on June 10, 2017, which was marked as offensive and was located on the garage door.

This incident was promptly addressed and resolved the same day by the Department of Public Works Operations. While the building's permit and incident history does not reveal any major safety concerns or patterns of maintenance issues, it should be noted that both the roofing permit from 1998 and the garage renovation permit from 1987 were either expired or cancelled, suggesting these projects were not completed under their original permits.