1837-1841 Jefferson St, San Francisco, CA 94123

The three-unit residential building at 1837-1841 Jefferson Street in the Marina neighborhood, owned by Jem Simons Fmly Llc, has undergone significant transformations since its construction in 1927, with the most notable events occurring around a serious fire incident in 2009. The property experienced substantial damage from a fire in December 2009, affecting the west lightwell and most of the roof, which resulted in water damage throughout the building.

This incident led to extensive repairs, including a complete building remodel and rewire in 2011, the installation of a new fire sprinkler system throughout the building with dedicated copper fire service, and the addition of solar panels (42 roof-mounted PV modules, 8.8kW total rating). The fire safety improvements continued with recent activity, including the installation of a new sprinkler monitoring system in October 2024, with associated electrical work currently underway. The building's history also includes some concerning events, most notably a complaint in February 2022 regarding unauthorized and unsafe exterior construction work, including reports of debris falling from the structure.

While this complaint has been marked as "Not Active," it raised safety concerns during its occurrence. The property underwent various inspections and permit processes between 2010 and 2014 to address the fire damage and complete necessary repairs, with all building violations officially abated by October 2014. Routine housing inspections occurred in 2000, and the building has experienced multiple parking-related incidents in the surrounding area, as evidenced by 311 calls regarding blocked driveways and sidewalk parking between 2018 and 2024, although these are unrelated to the building's structural or safety conditions.