9-11 Castillo St, San Francisco, CA 94134

The two-unit residential building at 9-11 Castillo Street in Visitacion Valley, owned by Ji Ying Liang & Man Li Tan, is a two-story flats and duplex structure constructed in 1948. The building's maintenance records show regular attention to the roof, with a documented reroofing project completed in 2009 at a cost of $4,200, though an earlier roofing permit from 1995 had expired.

In recent years, the property has experienced several notable incidents, with the most concerning being a sewage backup issue in October 2023 that required intervention from PUC Sewer Operations and a fire department-related service request in June 2024. The building has generated multiple parking enforcement calls between 2022-2023, with three citations issued for driveway blocking, though there were also several instances where officers were unable to locate the offending vehicles. The property has had some environmental and public infrastructure interactions, including a garbage and debris complaint in July 2024 that was resolved and two service requests to the Department of Public Works in June 2023, with one being related to public right-of-way encroachment.

A historical fire complaint from 2007 regarding blocked exits was determined to have no merit. While the building has had its share of service calls, there are no documented patterns of persistent issues or safety concerns. The most recent building maintenance records show proper attention to infrastructure needs, though the relatively recent sewage issue and fire department interaction merit attention.