10 Corwin St, San Francisco, CA 94114

The 5-unit, 2-story multi-family residential building at 10 Corwin Street, built in 1956 and owned by Vaccaro Enterprises, has undergone several significant safety and infrastructure improvements over the past two decades. The property completed mandatory soft-story retrofit work between 2016 and 2017 at a cost of approximately $45,000 to enhance seismic safety, achieving Tier 3 compliance with a Certificate of Final Completion issued.

Recent safety upgrades include a major fire alarm system retrofit in November 2023 costing $19,700, which installed new horn/strobes and low-frequency sounders in sleeping areas to meet current fire code requirements. The building has experienced regular fire alarm activations, primarily due to system malfunctions, though no actual fires or civilian injuries have been recorded during these incidents. Window replacements have been conducted twice, in 2000 and 2004, upgrading to insulated aluminum windows, while recent plumbing improvements in 2022 included kitchen and bathroom fixture updates.

The building has maintained active compliance with housing codes, though there was a notable instance in 2011 involving multiple fire safety violations related to fire escape ladders and combustible storage, all of which were abated within approximately one month. Street-related issues have been recorded through 311 calls, primarily concerning graffiti and general cleaning needs, though these are external to the building itself. The property has also experienced periodic issues with parking enforcement and sidewalk cleanliness, as documented in recent 311 reports, however, these are not directly related to building management or safety concerns.