120 Southern Heights Ave, San Francisco, CA 94107

The multi-family residential building at 120 Southern Heights Ave in Potrero Hill is a two-story, four-unit apartment structure owned by Robert A. Cantillo and was originally built in 1904. The building's permit history shows three significant modifications: a completed code compliance project in 1986, followed by a deck addition and horizontal extension in 1987 (though this permit ultimately expired), with a final inspection completed in 1988.

The most recent permit-related activity occurred nearly 40 years ago, suggesting no major structural modifications have been undertaken in recent decades. The building's 311 call history from 2017 to 2024 indicates some recurring neighborhood issues, though none appear to directly involve the building's structure or internal systems. Recent activity includes two open noise complaints from September 2024 regarding sirens and excessive noise.

There have been several documented cases of illegal parking affecting the property, with citations issued in 2018 and 2019 for vehicles blocking driveways. Other incidents include a damaged tree (2021), a hazardous materials report that was unconfirmed (2021), and two water service requests (2017) that were transferred to the appropriate department. While the building itself appears stable, the surrounding area has experienced intermittent issues with parking, noise, and occasional infrastructure concerns that have required municipal intervention.