577-581 42nd Ave, San Francisco, CA 94121

The three-story multi-family residential building at 577-581 42nd Avenue in San Francisco's Outer Richmond district, owned by Siloam Properties LLC, has a complex history of legalizations and compliance issues spanning over a decade. Built in 1986, this three-unit building underwent significant modifications between 2017-2019, including the legalization of a previously unauthorized first-floor unit with bedroom, kitchen, and bathroom facilities, which prompted the installation of a new fire sprinkler system ($20,292 in 2018) and associated fire safety equipment including a monitor alarm and sprinkler flow valve trip ($3,500 in 2019).

Prior to this legalization, the building had experienced several compliance issues, including a 2009 violation for unauthorized modifications to convert basement/family room space, which was addressed by removing an illegal kitchen and modifying the bathroom ($20,000 cost) and resulted in a building complaint about unauthorized construction work. The property has also seen significant maintenance and safety upgrades, including the replacement of 14 windows and two sliding doors in 2013 ($8,500), backflow installation in 2020, and comprehensive electrical work during the unit legalization process in 2017.

A fire safety concern was documented in 2009 regarding blocked exits, though this was promptly corrected within three days. The building's normal maintenance history includes earlier records of reroofing work in 2008 ($7,200). Recent municipal interactions have been limited to routine matters such as street cleaning and parking enforcement, with no active violations or complaints pending as of the most recent records.