666 Ofarrell St, San Francisco, CA 94109

The 33-unit, 4-story multi-family residential building at 666 O'Farrell Street, owned by SF Multifamily IV Property, was constructed in 1924 and has undergone several significant renovations and maintenance activities over the years. The property has experienced recurring maintenance issues, particularly related to water damage, mold, and infrastructure systems. Most recently, in 2024, Unit 6 reported significant problems including water leaks, electrical issues, and mold (case filed June 2024), while Unit 45 had a stove malfunction in April 2023.

Historical renovation work is notable, with extensive unit updates performed between 2019-2020, including the renovation of multiple units (27, 32, 36, 38, 42, and 45) involving new bathrooms, kitchens, appliances, and electrical systems, totaling approximately $615,000 in improvements. The building has faced various compliance and safety challenges, most recently receiving a sleeping area requirement violation in December 2023 and having multiple fire safety violations, including issues with alarm systems and sprinkler systems between 2019-2023. Past violations from 2002 showed problems with mold, plumbing, windows, elevator maintenance, and weatherproofing, though these were abated by March 2003.

The property underwent significant infrastructure improvements in 2021 with the installation of a new Raypak water heater system (299,000 BTU) and previously had a Peerless steam boiler installed in 2011. Recent maintenance patterns indicate ongoing challenges with moisture control and system maintenance, as evidenced by complaints regarding mold and water leaks recurring over multiple years (most notably in 2015, 2023, and 2024). The building's systems have been updated periodically, including a substantial electrical service upgrade in 2019-2020 and various plumbing improvements, though some permits remain expired as of the latest records.