1136-1140 Mason St, San Francisco, CA 94108

The three-unit residential building at 1136-1140 Mason Street in Nob Hill, owned by the Irene Gordon Lee Living Trust, is a three-story flats and duplex structure built in 1912. The property has undergone several significant improvements, most notably a complete reroofing project in 2004 costing $17,250, and the installation of a new garage door and motor the same year.

Fire safety upgrades were attempted in 2004 with applications for fire sprinkler work, though those permits expired, and additional sprinkler and alarm system work was permitted in 2005. The building has experienced multiple routine housing inspections over the years, with several violations identified in 2000 related to fire safety and security, including issues with garbage receptacles, fire extinguisher maintenance, and emergency egress from sleeping rooms. A 2001 inspection noted dry rot in rear stairs, and in 2009 there were concerns about water heater seismic bracing.

While most of these violations were eventually abated, including a water leakage issue in 2002 affecting neighboring property, a routine inspection from 2016 remains active according to current records. The building has experienced multiple fire alarm incidents, though all were determined to be false alarms or malfunctions with no civilian injuries reported. Recent history from 2019 through 2024 shows various neighborhood-related issues such as parking concerns, garbage, and debris on surrounding streets, and noise complaints, which are more reflective of neighborhood conditions than building-specific issues.