3305-3321 20th St, San Francisco, CA 94110

The three-story, 9-unit multi-family residential building at 3305-3321 20th Street in the Inner Mission, owned by M Dattani Credit Trust, has undergone significant renovations and faced various maintenance challenges since its construction in 1905. Recent history shows ongoing improvements to meet safety standards, including the installation of a UL-300 fire suppression system in 2020 and the most recent building violations from September 2023 regarding gas utility shutoff tools and compliance affidavits that remain active.

The property has experienced multiple renovation phases, with substantial work completed between 2013-2019 involving unit remodels, including kitchen and bathroom updates, window replacements, and restaurant-related improvements. The building has a documented history of safety and maintenance issues, particularly in 2023 with multiple fire safety violations regarding blocked exits and extinguishers, though these were subsequently abated. Historical problems include past roof leaks affecting both commercial and residential spaces (2000), and various complaints between 2013-2014 regarding mold, plumbing issues, and unauthorized construction work.

The property has also had some site-specific challenges, as evidenced by multiple 311 calls in late 2024 and early 2025 related to garbage and debris around the building's perimeter. While many previous violations and complaints have been addressed, the active 2023 compliance issues represent the most current concerns requiring attention. The building's permit history shows regular investment in maintenance and improvements, with the most recent significant work being fire safety-related updates in 2020.