1051 De Haro St, San Francisco, CA 94107

The property at 1051 De Haro Street is a three-unit, two-story multi-family residential building located in Potrero Hill, built in 1911 and currently owned by Andrew D. Lynch. The building underwent significant renovations in 2012, including a comprehensive interior remodel of all three units, electrical upgrades, plumbing improvements, and the installation of new furnaces and water heaters.

More recent construction activity raised concerns in late 2019 when there were reports of unauthorized work to convert units and use the building as group housing for students and interns, allegedly resulting in over-occupancy. This complaint followed a pattern of unit modifications, including a previously unauthorized conversion in 2017. The building's history includes several maintenance and violation issues, particularly in 2005 when the property faced multiple housing code violations related to building maintenance, including mold, water damage, inadequate heating, and fire safety concerns.

These violations were abated by October 2005. There were also multiple cancelled or withdrawn permit applications in 2012 related to foundation work, electrical upgrades, and various repairs. The property has been the subject of numerous recent parking violations in the vicinity, with multiple citations issued between 2023-2024 for vehicles parking on the sidewalk, though these are external to the building itself. Additionally, there were issues with illegal short-term rentals recorded in 2018-2019, which were ultimately resolved, including a period when the property was reportedly being used as co-op/intern group housing with 10-12 occupants.