601 Tompkins Ave, San Francisco, CA 94110

The two-unit residential building at 601 Tompkins Ave in Bernal Heights is a two-story flats and duplex structure built in 1900, currently owned by Richard J Modolo. The most recent significant building improvement occurred in 2013, involving the replacement of a door and window in the rear of the building, with costs totaling $3,500. This work was conservatively executed, using appropriate materials that were not visible from the street.

The building's history shows several attempted and completed permits in the early 1990s, including an expired vertical addition permit and a foundation repair permit related to dry rot issues, though these were not ultimately completed. The property has experienced various infrastructure and environmental challenges in recent years, particularly between 2022-2024, including a water main leak and flooding issues in April 2022, a hazardous materials incident involving liquids in January 2024, and multiple instances of illegal parking enforcement matters. The recent building environment has been marked by several municipal service calls, primarily relating to street maintenance and sewer issues, with the most recent incidents occurring in December 2024.

A fire complaint regarding weeds and grass was filed in June 2008 but was determined to have no merit. While there have been numerous service calls to the area, most relate to street and sidewalk conditions rather than building-specific issues, and many cases have been successfully resolved or closed by relevant authorities. The building's permit history, while showing some past concerns, indicates that most significant structural issues were addressed by the early 1990s, with subsequent improvements focusing on maintenance and modernization rather than major structural changes.