1135 Bay St, San Francisco, CA 94123

The 12-unit, 3-story apartment building at 1135 Bay Street is a 1924 multi-family residential structure owned by Bay Street Investors LLC that has undergone several significant improvements and faced various maintenance challenges over the years. Most notably, the building completed a mandatory soft-story retrofit in 2017 at a cost of $90,000 to improve seismic safety.

Recent issues related to the building's mechanical systems have been of particular concern, with multiple boiler permit violations between 2020 and 2023, including a citation in October 2023 for the alarm system maintenance. The building has experienced multiple fire safety-related incidents and violations, including blocked exits, sprinkler system issues, and multiple alarm system problems between 2017 and 2023, though most were marked as "Condition Corrected." The property has faced several maintenance challenges in recent years, particularly during late 2021 through 2022, when multiple complaints were filed regarding unsafe work practices involving lead paint removal and inconsistent heating systems. Numerous building and fire safety violations were identified between 2006 and 2020, including issues with fire escape ladders, smoke enclosure doors, handrails, means of egress, and various fire protection systems.

Historical maintenance work includes reroofing (1990), water heater replacement (2013), and installation of LED flood lights (2016). Recent activity in early 2025 has shown multiple reports of sidewalk blockage, garbage issues, and graffiti in the vicinity of the building, while internal building systems appear to receive regular attention from inspection services. The building's owners have generally addressed violations and completed required safety improvements, as evidenced by the issuance of Certificates of Completion for multiple work items, though there have been recurring issues with timely permit renewals for critical systems like the boiler.