145 Guerrero St, San Francisco, CA 94103

The 145 Guerrero Street apartment building is a 6-story, 110-unit multi-family residential property built in 1980 and currently owned by Mercy Housing California. The building has undergone significant safety and maintenance improvements over recent years, with major work completed in 2017-2018 including the installation of a new fire alarm system, emergency responder radio coverage system, emergency evacuation signs, and a new parking garage exhaust fan with gas detection system. Comprehensive fire safety upgrades were implemented, including new low-frequency horn notification devices, smoke detectors in common areas, and extensive fire sprinkler system modifications.

The building's infrastructure has also been improved with new hydronic boilers, domestic hot water tanks, and various plumbing updates including shower pan replacements in multiple units. Recent complaints indicate ongoing concerns with the building's fire alarm system, with complaints filed in 2024 about frequent false alarms and a current active complaint from June 2024 regarding unpermitted construction work in the lower lobby. The building has experienced several maintenance issues over its history, including plumbing problems in 2010, water backup issues in 2019, and instances of mold in 2005.

Historical violations from 2003-2017 included concerns about steam pipe insulation, loose handrails, and boiler permit renewals, all of which were subsequently abated. Recent fire code violations have been recorded in 2023 and 2024, though the more recent violation regarding sleeping area requirements is still open. Notably, there have been multiple fire safety-related complaints between 2010-2024, though most were resolved either through corrections or were referred to the appropriate departments.