21-25 Corwin St, San Francisco, CA 94114

The 11-unit, 3-story multi-family residential building at 21-25 Corwin Street, owned by Rosemary Court Prpts LLC and constructed in 1961, has undergone several significant improvements and faced various challenges over recent years. Most notably, Unit 4 is currently undergoing substantial renovations in 2024-2025, including electrical system upgrades, plumbing work, and bathroom updates totaling approximately $44,000. The building has experienced some safety-related issues as evidenced by a series of fire complaints between 2018 and 2024, primarily concerning extinguishers and exit maintenance, though these were generally found to have no merit or were promptly corrected.

A significant cluster of building violations was addressed in 2020, including issues with smoke alarm compliance, lead paint regulations, electrical cord wiring, weatherproofing, and interior surface repairs, all of which were abated by June 2020. The property has undergone notable infrastructure improvements, including a voluntary seismic upgrade in 1996 and various electrical system enhancements. Recent electrical work in 2024 involved replacing both the main fuse panel and sub-panel, installing new circuits with modern safety features throughout the building.

Historical maintenance records show attention to structural elements like stairs in 1993 and roof repairs in 2020. The building has experienced some external issues, including graffiti (most recently in 2021) and a 2014 environmental health service request related to asbestos. While the building has had several routine housing inspections over the years, most recent violations have been promptly addressed, though recent work on Unit 4 suggests ongoing maintenance of the property. The most recent documented fire-related issues in 2024 concerning exit maintenance and alarm systems indicate continued attention to safety concerns, with at least one issue requiring correction.