1618-1632 Mason St, San Francisco, CA 94133

The property at 1618-1632 Mason Street is a three-story, 28-unit multi-family residential building constructed in 1912 and currently owned by American Liberty Investment. The building has undergone several significant improvements and faced various maintenance challenges over recent years. Most notably, in 2021, major infrastructure upgrades were completed, including the addition of multiple ADUs in the basement (with individual permits totaling $470,000), a comprehensive electrical upgrade to a 400-amp service panel with 16 meters, and a complete sewer lateral and p-trap replacement using trenchless methods. The building successfully completed its mandatory soft-story retrofit in 2018 (Tier 2) at a cost of $65,000, demonstrating compliance with seismic safety requirements.

Recent maintenance issues have raised concerns about resident comfort and safety. Between 2021-2023, there were multiple complaints regarding building systems and habitability, including electrical problems, mold growth, fire alarm malfunctions, and security issues with mailboxes. A notable cluster of complaints in early 2021 cited problems with building security, including a faulty fire alarm system, loose handrail, and mailbox security concerns resulting in medication theft. More recent issues include a power outage during remodeling in March 2023 and previous water-related problems in 2022, suggesting ongoing maintenance challenges.

The building's plumbing and electrical systems have received attention over the years, with records showing various upgrades and repairs including bathroom fixture replacements, pump installations, and electrical system improvements. While historical building violations from 2006-2008 were addressed and resolved, they primarily related to various building code compliance issues that are no longer active. The property has seen substantial investment in its infrastructure and safety systems over the past decade, with significant improvements made to meet current building codes and standards. However, the recent pattern of maintenance complaints and system-related issues suggests that some elements of building management and maintenance may require closer attention to ensure consistent resident comfort and safety.