1410 Jefferson St, San Francisco, CA 94123

1410 Jefferson Street is a 3-story, 2-unit multi-family residential building located in San Francisco's Marina neighborhood. Built in 1931, this flats/duplex structure underwent significant modernization and safety improvements between 2013-2014, including a comprehensive $124,000 horizontal and vertical addition project that expanded the building by 135 square feet, converted an existing guest suite into a legal second unit, and installed a complete water-based fire sprinkler system ($72,474) throughout the building. The renovation work also included the construction of a rooftop deck with associated safety features, window replacements, bathroom remodels, and closet additions.

A voluntary seismic upgrade was completed for the first story in 2013, enhancing the building's structural integrity. More recent improvements include a complete electrical system upgrade in 2013, featuring a new 200-amp service and extensive new wiring, and HVAC improvements with a 95% furnace installation in 2014. The property has continued to receive maintenance and upgrades, with the latest electrical work recorded in August 2021 involving new dining room lighting and electrical circuits.

The building's safety systems have been periodically tested and maintained, with several fire department incident calls recorded, though none resulted in actual fires or civilian injuries. The property has experienced typical urban residential issues as evidenced by recent 311 calls, including reports of sidewalk defects, parking violations, and various municipal service requests, with the most concerning being an open ticket regarding lifted sidewalk tree roots from September 2024. While these external factors don't directly impact the building's internal conditions, they do provide context about the property's urban environment. The building's recent permit history and completed safety upgrades suggest proactive maintenance and improvements by the owners, particularly in terms of fire safety and structural integrity, though prospective tenants should monitor the status of the open sidewalk defect reported in late 2024.