426-428 Guerrero St, San Francisco, CA 94110

The property at 426-428 Guerrero Street is a two-story, two-unit multi-family residential building located in Mission Dolores, constructed in 1908 and currently owned by Michael P Cohrs & Gregory A. The building has undergone several significant improvements over the past two decades, with the most recent being a voluntary structural upgrade completed in 2021 at a cost of $75,000. Other notable improvements include a deck replacement in 2018 ($8,500), multiple kitchen and bathroom remodels between 2003-2005 totaling over $110,000, and the installation of an EV charging station in 2014.

However, the building has experienced several concerning issues, particularly in 2020, including complaints about mold in a bedroom closet, inadequate smoke/CO detector compliance, and multiple fire code violations related to doors, exits, and illumination, though these violations were subsequently abated. A building violation from 2000 regarding unauthorized window replacement and sidewalk blockage was also resolved. Recent activity at the property has included multiple complaints about blocked driveways, with seven such incidents reported between September 2024 and January 2025, though enforcement officers were usually unable to locate the offending vehicles.

There have also been two tree-related incidents reported recently, including a damaged tree in October 2024 and a tree maintenance issue in January 2025. The building's maintenance history shows regular attention to major systems and safety requirements, though the 2020 fire safety violations and smoke/CO detector issues raised significant concerns about resident safety during that period. The property has generally been proactive in addressing structural and safety improvements, as evidenced by the voluntary upgrades and systematic remodeling work performed over the years.