2141-2145 Mason St, San Francisco, CA 94133

The 6-unit, 3-story multi-family residential building at 2141-2145 Mason St in North Beach, constructed in 1907 and currently owned by Betty Sunling Ching 2014 Re, has a documented history primarily from the 1990s through 2023. The building underwent significant interior modifications in 1993-1994, including several revisions and the relocation of a spiral staircase, with multiple building permits issued and successfully completed during this period. A reroofing project was permitted in 1996, though this permit has since expired.

The property has been subject to routine housing inspections by Housing Inspection Services in 1999, 2000, 2003, and 2006, with all cases marked as not active. More recent history (2021-2024) shows various external maintenance and neighborhood issues, though none directly related to the building's structural integrity or internal systems. These include two instances of human/animal waste cleanup, several sidewalk and parking enforcement matters, and reports of graffiti (as of May 2022).

Two noise complaints regarding construction on private property were filed in 2021, though one was marked as having insufficient information. A sidewalk defect was reported in October 2023, specifically noting a collapsed sidewalk, which was subsequently resolved. The most recent building-related interactions have been primarily through 311 calls regarding street-level issues rather than actual building problems, suggesting the structure itself has required relatively little intervention in recent years.