520 Randolph St, San Francisco, CA 94132

520 Randolph Street is a two-story multi-family residential building located in Ingleside Heights, owned by Huang Xiao Hui. The mixed-use property, which includes ground-floor commercial space, was built in 1958 and has undergone significant modifications over the years. In 2015, following a complaint about illegal unit conversion from commercial to residential use (formerly Cortez Cleaners), the owner initiated a $15,000 project to convert the commercial space into an additional residential unit and remodel the bathroom.

This conversion work was subsequently documented through building, plumbing, and electrical permits completed in 2017, which included the installation of smoke detectors and bathroom fixtures. The property has experienced a variety of maintenance and compliance issues since 2024, with multiple 311 calls reporting problems such as sewage discharge from the side sewer vent and recurring garbage and debris problems, including furniture, boxes, and even a mattress. There have also been numerous parking enforcement calls related to driveway blocking in 2024, though officers were typically unable to locate the offending vehicles.

A significant tenant buyout occurred in 2022 at the nearby address (509 Randolph Street), involving three tenants and totaling $52,000. While most recent 311 calls have been resolved, the cluster of garbage issues and sewer problems in particular warrant attention. The building's utility infrastructure received an upgrade in 2004 with a 200-amp service conversion for two meters, suggesting a capacity expansion to accommodate additional units.