100 Laguna St, San Francisco, CA 94102

100 Laguna Street is a three-story, 24-unit multi-family residential building constructed in 1912 in Hayes Valley. The property, owned by Chan Edison & Shirley L Trs, is currently facing several significant regulatory challenges. Most notably, it has active violations related to the Mandatory Soft Story Retrofit Program, with non-compliance issues first documented in 2016 and currently under review as of April 2024.

The building has undergone several major improvements in recent years, including the installation of a comprehensive fire sprinkler system ($35,490 in 2022), electrical service upgrades (most recently $12,000 in 2024), and various plumbing improvements including a new steam boiler system and tankless water heater ($95,000 in 2022). However, there have been persistent issues with boiler permit compliance, with violations recorded in 2020 and 2022, and a recent complaint in January 2025 regarding excessive steam vent noise affecting residents. The building's maintenance and safety history shows a pattern of addressing critical infrastructure needs, including seismic retrofitting work completed in 2016 ($80,000), though not all associated final inspections have been completed.

Recent fire safety inspections in 2024 resulted in violations being issued, and the building experienced multiple fire alarm system activations over the past few years, though none resulted in actual fires or injuries. While the property has undergone various upgrades, including the addition of an ADU in 2018 and extensive sprinkler system installations, it continues to grapple with regulatory compliance issues that suggest ongoing challenges in meeting City requirements for seismic safety and building systems maintenance. The most recent building complaint from January 2025 regarding boiler noise has been referred to multiple city departments for investigation.