3490-3498 18th St, San Francisco, CA 94110

The 6-unit, 3-story multi-family residential building at 3490-3498 18th Street in the Inner Mission, owned by the Amanda M Hamilton Revocable Trust, has undergone several significant structural and safety improvements since its 1911 construction, most notably a mandatory soft story retrofit completed in 2015 that cost $30,000. The building has faced some safety incidents and code compliance issues over the years, with the most recent being a car impact in April 2024 that damaged a corner support column, requiring $22,000 in repairs completed by September 2024.

Other notable events include a commercial space bathroom renovation in 2020 that prompted a code violation due to lack of proper permits, and various fire safety system violations between 2006 and 2023, though all have been addressed and abated. The property has maintained regular updates to essential systems, including a bathroom remodel in 2017 ($20,000) that involved both plumbing and electrical upgrades, re-roofing work in 2013 ($21,500), and the installation of a small food prep sink in 2023.

The building's fire safety record shows multiple smoke detector activations and false alarms over the years, though none resulted in civilian injuries or significant damage. Historical violations from 2007-2009 included issues with stairs, handrails, and fire safety systems, all of which were subsequently corrected. The surrounding area has seen recent 311 activity primarily related to encampments and street maintenance issues, with several cases logged in early 2025, though these are external to the building itself.