3423 Fillmore St, San Francisco, CA 94123

The three-story, 18-unit multi-family residential building at 3423 Fillmore Street in the Marina, owned by Gruber Legacy LP, was constructed in 1927 and has undergone several significant upgrades in recent years. Most notably, in 2023-2024, the building's fire safety systems received substantial improvements, including a major fire alarm system upgrade in October 2023 (cost: $39,265) followed by a modification in January 2024 that removed sprinkler-related components, clarifying that the building is not sprinklered.

This building has completed its mandatory soft-story retrofit (class tier 3) as of 2014, demonstrating compliance with seismic safety requirements. The property has undergone multiple unit renovations between 2016-2017, with four apartment kitchens (Units 104, 110, 112, and 202) receiving modern upgrades including new cabinets, appliances, and electrical systems totaling over $60,000 in improvements.

The building's infrastructure has also been maintained, with a house trap replacement completed in 2018 and various street space permits issued over the years. While there have been three fire safety complaints (2007, 2019, and 2022) related to alarm systems and blocked exits, all were promptly addressed and corrected. The building has experienced typical urban maintenance issues as evidenced by 311 calls in 2023-2024, including general cleaning needs and graffiti, all of which were resolved through proper channels.