1231 41st Ave, San Francisco, CA 94122

The two-unit residential building at 1231 41st Avenue in San Francisco's Outer Sunset neighborhood is a two-story flats and duplex structure built in 1908, currently owned by Routzen Kaitlyn Sierra & Ch. The property has undergone several significant improvements over the past three decades, with the most recent work being a complete sewer lateral replacement in December 2024. Prior renovations include an electrical system upgrade in 2022 that increased capacity from 100 to 200 amps and replaced the sub-panel, and a window replacement project in 2013 that installed seven energy-efficient Anderson Fibrex windows while maintaining the original frames.

A notable electrical safety issue was documented through a complaint in 2006, involving wiring concerns and faulty light fixtures, though this was resolved within six months. The building's maintenance history shows regular upkeep, with records indicating a reroofing project completed in 1995 (though this permit has since expired). The surrounding area has experienced recurring issues with abandoned vehicles, with eight documented cases between 2010 and 2019, all of which were resolved when vehicles were found to be gone upon inspection.

There have also been two complaints about sidewalk parking in 2019, though officers were unable to locate the vehicles in question. An illegal posting case in 2016 was addressed by the Department of Public Works. While the building does not have any current tenant buyout records on file, the recent infrastructure improvements suggest ongoing maintenance and upgrading of the property's systems.