2154-2156 Mason St, San Francisco, CA 94133

The two-unit residential building at 2154-2156 Mason Street in North Beach, constructed in 1925, has experienced a variety of incidents over recent years that may impact resident experience. Most notably, there have been recurring issues with human waste and debris on or near the property, with three documented cases between 2022 and 2025, including the most recent incident in January 2025 involving human waste or urine.

The property has also faced some maintenance and security challenges, including two instances between 2020 and 2021 of vehicles blocking driveways, which required parking enforcement intervention. In 2018, there was an encampment situation that required police enforcement, and in 2017, the building's mailbox was reported graffitied, though this was handled by the United States Postal Service. From a maintenance and upgrades perspective, the building has documented both garage door opener installations in March 2004, which were completed successfully.

The property's 311 call history shows responsive action from various city departments, with all cases being closed and marked as resolved. While the building's permit history is limited to the garage door opener installations, the persistence of sanitation-related issues in recent years stands out as a notable pattern. It's worth noting that many of the reported issues are external to the building itself, relating more to the immediate neighborhood conditions and public spaces rather than the building's internal systems or management.