642 Vermont St, San Francisco, CA 94107

The property at 642 Vermont Street in Potrero Hill is a two-story, two-unit multi-family residential building constructed in 1926, currently owned by the Christine L Mcbrady Living Trust. The building has experienced several significant issues in recent years, most notably an active violation from April 2024 regarding an unpermitted third dwelling unit on the ground floor behind the garage, with multiple safety concerns including inadequate egress, improper fire separation, and lack of required smoke detectors. The building has also faced recurring mold issues, with the most recent complaint filed in April 2024.

Historical records show some structural work was performed in 2017, including underpinning of the rear foundation at the northwest corner to comply with a notice of violation, though this followed earlier concerns about unauthorized concrete work. The property has undergone some maintenance over the years, including roofing work in 2000 and the installation of new concrete foundation work in 2017, though this was initially noted as unauthorized. Additional concerns have been raised about the building's safety systems and living conditions, including inadequate ceiling height, insufficient lighting and ventilation, and absence of proper heating systems in certain areas.

The current ownership has recently submitted a planning application to remove what is described as a "long-standing UDU" (unauthorized dwelling unit) due to low ceiling height concerns. The building's location has generated multiple parking-related complaints between 2019 and 2022, primarily regarding vehicles blocking driveways or parking on sidewalks, though these are separate from the building's structural and safety issues. A general hazardous materials concern was investigated and corrected in June 2019, and various 311 calls have been logged for different types of municipal services over the years, including noise complaints and street cleaning requests.