3959 Mission St, San Francisco, CA 94112

The two-story, four-unit multi-family residential building at 3959 Mission Street in Bernal Heights, owned by Liang Damon Jian F & Jenny, was constructed in 1952 and has experienced several significant events over its history. Most notably, between 2000-2012, the building underwent various safety improvements following multiple fire safety and security violations, including the installation of smoke detectors, fire extinguisher maintenance, and security door upgrades, all of which were successfully abated.

In recent years, there have been several plumbing and maintenance issues, with a water heater replacement project completed in 2017 and a significant plumbing complaint regarding toilet water fill issues reported in 2021 that persisted for two years before being documented. The building has also undergone various infrastructure improvements including reroofing in 2009 and conversion to underground electrical service in 2003, though both permits are now expired. The property has been subject to routine safety inspections throughout the years, with the most recent documented routine inspection occurring in 2015.

Recent 311 calls from 2024 primarily relate to street cleaning issues, including reports of garbage and debris, with one plumbing-related complaint in 2021 that received housing inspection follow-up. The building's historical records show consistent attention to addressing safety and maintenance issues, particularly in the early 2000s, though some recent plumbing concerns suggest ongoing maintenance challenges. The property's location has experienced typical urban issues as evidenced by multiple reports of street cleaning needs and parking enforcement calls in the vicinity, which are not directly related to building conditions but reflect the neighborhood context.