664-666 Natoma St, San Francisco, CA 94103

The 664-666 Natoma Street property, a two-unit multi-family residential building constructed in 1906, has undergone significant recent improvements with active permits as of 2024 totaling approximately $110,000, including comprehensive kitchen and bathroom remodels, fire safety upgrades, and plumbing work. The building has received regular maintenance attention over the years, with completed projects including roof replacement in 2016 (following prior work in 2006), flashing installation, and various interior improvements.

Notably, there was one period of significant concern in 2006 when the building received an "unsafe building" complaint that remained active until 2011, along with a fire violation regarding a vacant building security issue in May 2006, though specific details of these incidents are not provided in the records. The property has experienced multiple fire alarm activations over the years, though none resulted in civilian injuries or significant damage, with most being unintentional system activations or smoke detector issues. Fire safety systems have been periodically updated, as evidenced by recent fire sprinkler work in 2024.

The building's maintenance history shows attention to both structural and safety systems, including a sewer line repair in 2020 and various plumbing improvements. Recent 311 calls (2024) have primarily related to external issues such as garbage and debris on or near the property, with several cases being resolved without the need for further action. There are currently two open noise complaints from October 2024 that may warrant monitoring.