1926-1928 Jefferson St, San Francisco, CA 94123

The property at 1926-1928 Jefferson Street in San Francisco's Marina neighborhood is a two-story, three-unit multi-family residential building constructed in 1935 and currently owned by the Ottorino E Pasian Trust. The building has a troubling history of complaints and potential code violations, most notably regarding unauthorized units and safety concerns. As of December 2023, there are active concerns about an unauthorized rooftop unit (described as an "adjunct 1 bed/bath unit" with kitchen facilities) that has reportedly been rented in the past year, creating fire safety concerns due to lack of proper firewalls.

This follows earlier complaints in 2022 about unauthorized residential use of the top unit and rooftop, with access via non-code-compliant exterior stairs. The building has undergone various permitted modifications over the years, including seismic reinforcing work in 1990 (now expired), ground floor bedroom and bathroom construction in 1998, and more recent roof-related work. The property has experienced recurring plumbing and sewer issues, with multiple sewage backup incidents reported between 2020 and 2021, and a recent plumbing issue reported in December 2024, suggesting ongoing infrastructure challenges.

There were also historical concerns about illegal short-term rentals in 2018 and unauthorized garage conversion issues. Recent building permit activity includes a 2025 application for a roof deck addition, though this is currently in triage status. The property has had several maintenance issues, including tree removal permits in 2020-2021 and various traffic-related incidents on Jefferson Street, though these are less critical to resident safety. While some historical complaints have been resolved and records show various completed permits, the persistence of unauthorized unit concerns and recent maintenance issues warrants attention, particularly regarding safety compliance.