1125 Mason St, San Francisco, CA 94108

1125 Mason Street is a three-story, 8-unit multi-family residential building located in Nob Hill, constructed in 1972 and currently owned by the Irene Ai Fang Wong Qtip Trust. The building has undergone several significant safety improvements in recent years, most notably completing a mandatory soft story retrofit in 2018 at a cost of $120,000, which included the installation of steel moment frames and ply shear walls to enhance seismic resilience.

The building's fire safety systems have been substantially upgraded, with a complete fire alarm system overhaul in late 2022 costing $34,800, followed by a 2023 revision to add wireless notification capabilities in sleeping areas. The property has a history of maintaining compliance with safety regulations, with significant violations recorded in 2009 related to fire safety systems, emergency lighting, and egress accessibility; however, all these violations were resolved by June 2009.

A recent complaint from December 2024 regarding slow kitchen water flow was promptly addressed within two weeks. The building completed its soft story retrofit under Tier 3 requirements, obtaining a Certificate of Final Completion (CFC). External to the building itself, there have been various neighborhood maintenance issues documented through 311 calls in 2024, including reports of human/animal waste and graffiti near the property, though these are typical urban challenges faced by many San Francisco buildings and not necessarily indicative of building management issues.