1766-1770 Union St, San Francisco, CA 94123

The 8-unit, 3-story apartment building at 1766-1770 Union Street in Cow Hollow, constructed in 1911, has undergone several significant renovations and faced various issues over its history. The most recent notable change was in 2022, when a ground-floor commercial space transitioned from a bar to a Thai massage establishment, including modifications to steps and handrails.

The building has maintained a pattern of interior improvements, with documented bathroom and kitchen remodels in multiple residential units over the years (2007-2017). Of particular concern is a recent complaint filed in April 2024 regarding the allegedly unauthorized conversion of residential half-baths into office space, with historical context showing similar concerns in the past when three residential units were reportedly converted to office space (status: Cancelled).

The property has experienced several maintenance and compliance issues, including a 2015 complaint about insufficient heat, a 2011 incident involving potentially unsafe lead-based paint work, and a 2002 complaint regarding an obstructed fire escape, though all these issues were eventually addressed and marked as not active. Infrastructure improvements include a main water supply replacement in 2014, exterior painting and window upgrades in 1992, and reroofing in 1988, showing regular maintenance of the building's systems and structure.