1342-1344 42nd Ave, San Francisco, CA 94122

The two-unit residential building at 1342-1344 42nd Avenue in the Outer Sunset neighborhood is a two-story flats and duplex structure built in 1946, currently owned by Nikolaus M Bamattre. The property has undergone several significant modifications and faced regulatory challenges over the years, most notably in 2007 when unauthorized construction work led to two Notices of Violation being issued for a horizontal extension at the rear of the property measuring approximately 20 feet by 20 feet, plus extensive remodeling of the plumbing and electrical systems.

This situation was ultimately resolved by September 2009 through multiple completed permits, including the proper installation of recessed lighting and renewal of permits totaling approximately $4,500. The building has undergone several maintenance and upgrade projects, including termite damage repair in 1998, reroofing in 1995, and the installation of vinyl siding in 1988.

More recent improvements include a standard EV installation in 2020, and significant electrical system upgrades in 2009 that established three separate meter panels with 70-amp service for the two units and common areas. The property has experienced recurring issues with street cleaning and abandoned furniture, as evidenced by multiple 311 calls in 2024-2025, though these are external to the building itself. A single cooking-related fire incident occurred within the building, though it was contained with no civilian injuries reported.