3642-3644 20th St, San Francisco, CA 94110

The two-unit residential building at 3642-3644 20th Street, owned by Steven J & Ryan E Silvers, is a two-story flats and duplex structure built in 1899. The property has experienced recurring maintenance issues, particularly with deck safety, as evidenced by multiple repairs to rotting wood in the rear deck occurring in 2012 and 2018, with the latter repair following a building complaint about unauthorized demolition of a multi-story deck and stairs. A significant concern remains as of February 2021, regarding a possible unpermitted rental unit in the uppermost floor/attic equipped with stove and sink, which is currently listed on Airbnb.

The building's infrastructure has seen various improvements, including a heating system upgrade to a high-efficiency furnace in 2012, though this permit subsequently expired. Recent inspections and permits indicate ongoing maintenance efforts, such as the installation of two direct vent gas inserts in 2020. The property has experienced several compliance issues, including a short-term rental violation that was ultimately closed as abated when the owner was instructed to cease rentals of less than 30 days.

The building's historical records show regular maintenance work, including three separate roofing projects between 1996 and 2001, and a horizontal addition completed in 1991 costing $16,000. Recent complaints in early 2024 indicate safety concerns with uncovered wires and cables creating tripping hazards at the sidewalk, though the majority of recent 311 calls relate to parking enforcement issues and general cleaning matters. While the building has experienced various maintenance and compliance issues over the years, there have been no recorded fire incidents with civilian injuries, and most historical complaints appear to have been resolved through appropriate remediation.