4340-4342 California St, San Francisco, CA 94118

The 4340-4342 California Street property is a 3-story multi-family residential building constructed in 1910, containing 6 units and currently owned by Sebastian F Colabianchi Fml. The building underwent significant seismic safety improvements in 2023, completing residential and commercial soft-story mitigation work with moment frame installations at a cost of $50,000 each, achieving compliance with current safety standards.

Building violations from October 2016 remain active and documented as a "nuisance property," including issues with lead paint hazards, egress obstructions, garbage accumulation, and fire safety concerns regarding sprinkler requirements for garbage storage areas. Additional complaints about plumbing violations involving unpermitted water heaters and various sanitation issues have persisted since 2016. Recent maintenance concerns have included a damaged window in Unit #5 (resolved by June 2023) and ongoing issues with doorbells and water accumulation around electrical breakers (an active complaint from February 2023).

The property has a history of shared spaces violations (most recently in 2022-2023) and multiple fire code issues requiring corrections, though some violations have been abated or rescinded. The building's mechanical systems received updates in 2016, including water heater replacements and plumbing fixture relocations, while the ground-floor commercial space underwent tenant improvements in 2016 to improve accessibility and facilities. Historical permits show various maintenance work, including reroofing in 2005 and multiple soft-story retrofit attempts, with the most recent successful completion bringing the building into compliance with seismic safety requirements.