421 Arkansas St, San Francisco, CA 94107

The two-unit residential building at 421 Arkansas Street in Potrero Hill is a two-story flats and duplex structure built in 1979, currently owned by Andrew W L Lui. The property has experienced several infrastructure issues over the past decade, with the most significant being related to the sewer system.

In 2021, there were two notable sewer-related incidents: a sewage backup incident in November and a missing side sewer vent cover in March 2022, both of which were resolved by the Public Utilities Commission and Department of Public Works respectively. More recently, in March 2020, a street space permit was issued for the property, though this appears to be a minor administrative matter with a cost of only $1.

Prior to these infrastructure issues, there was an unrelated parking enforcement incident in August 2021 involving a vehicle blocking a driveway, which resulted in a citation being issued. The earliest recorded activity was a temporary moving sign request in July 2014, which was properly permitted and paid for. The building's documented history shows a concentration of issues around 2021-2022, particularly regarding sewer infrastructure, though there have been no reported incidents of this nature since early 2022.