711-715 Guerrero St, San Francisco, CA 94110

The three-story, six-unit apartment building at 711-715 Guerrero Street in Mission Dolores, owned by California Lyon Company LLC, was constructed in 1907 and has undergone several significant improvements over the past two decades. Most notably, the building completed a substantial seismic safety upgrade with a soft-story retrofit in 2017, bringing it into compliance with San Francisco's earthquake safety requirements as a Tier 3 building. This project, which cost $68,000, included the installation of new shear walls and was completed with a Certificate of Final Completion.

In 2010, the building underwent exterior maintenance work including siding repairs on the back side of the building. The property has experienced several housing code violations and complaints over the years, with the most pressing issues occurring in 2004-2008, including problems with self-closing doors, fire extinguishers, rear stairs, and a lack of second means of egress - all of which were ultimately abated by November 2008. More recent concerns include a 2023 complaint about noise from a basement space that may have been improperly converted to residential use and an earlier 2010 complaint about building decks and siding alterations.

The building's permit history shows consistent attention to both maintenance and compliance issues, with various street space permits being issued in 2018 and earlier revision permits for construction work. Recent activity at the property has primarily involved routine urban maintenance issues, as evidenced by multiple 311 calls in 2023-2025 for parking violations and sidewalk cleaning. A zoning compliance request submitted in late 2021 is currently marked as closed- issued, though the specific details of that request are not included in the provided data. The building's most recent major structural work, the soft-story retrofit, represents a significant investment in the building's long-term safety and stability, though there remain ongoing concerns about unauthorized basement modifications and past safety compliance issues.