3521 18th St, San Francisco, CA 94110

The 10-unit, 2-story multi-family residential building at 3521 18th Street in Mission Dolores, owned by Barragan 2005 Revoc Tr, has undergone several significant safety upgrades and maintenance work since its construction in 1923. Most recently, in December 2023, the building received a fire alarm system modification to comply with San Francisco's sleeping area requirements, with associated electrical work completed shortly thereafter.

The building is classified as a Tier 3 soft-story structure, and completed a mandatory retrofit in 2015 at a cost of $70,200. The property has experienced recurrent fire safety issues, with multiple complaints and violations between 2018 and 2023 related to alarm systems, blocked exits, and fire extinguishers, though most of these have been promptly corrected, including a recent exit obstruction violation abated in April 2023.

Historical records from 2001-2002 show several building violations that were addressed by December 2001, including issues with stairs, plumbing, security, and heating systems. The building has undergone various improvements over the years, including reroofing in 2006, window restoration at the front entry in response to a notice of violation, and regular maintenance of fire safety systems, though several expired permits from 2000-2002 suggest some incomplete work during that period. Recent 311 calls from 2023-2024 primarily concern exterior maintenance issues such as graffiti and sidewalk cleaning, which are typical for urban residential properties.