3931 18th St, San Francisco, CA 94114

The property at 3931 18th Street is a one-story multi-family residential building located in the Eureka Valley/Dolores Heights neighborhood, containing two units and constructed in 1900. The building, owned by Angelo Martinez Li Sendejas, has undergone several significant maintenance and improvement projects over the years, including reroofing in 1999, foundation work and dry rot repairs in 1999, and efforts to address previously unpermitted modifications in 1998.

A notable cancelled permit from 1998 was intended for adding storage at the rear of the building and a porch roof. In recent years, there have been multiple parking enforcement issues, with several reports of driveway blocking between November 2024 and January 2025, though in most cases, officers were unable to locate the offending vehicles.

There was also one open noise complaint related to excessive noise filed in January 2025. The building's history includes two complaints about construction noise in December 2017, which were investigated by the Building Inspection Division. Of particular note is the successful completion of a variance process to legalize an existing unit at the property in the past, indicating prior concerns about parking requirements that were ultimately resolved.