1539 9th Ave, San Francisco, CA 94122

The 4-unit, 2-story apartment building at 1539 9th Avenue in the Inner Sunset, owned by the Shirley Ng Trust, has undergone several significant safety improvements over its history. Most notably, in October 2023, the building completed a comprehensive fire alarm system upgrade costing $29,300, which included the installation of addressable smoke detectors, manual pull stations, horn strobes, and low-frequency horns in residential sleeping areas to comply with San Francisco Fire Code requirements.

The building also completed an underground service conversion to a 200A system with 5 meters in 2004. The property has maintained a generally positive regulatory history, with no active violations since June 2001 when a series of fire safety issues were addressed, including combustible storage removal, fire extinguisher recharging, and repairs to fire proofing at the ceiling. A routine inspection in 2010 identified security issues related to door locks, which were subsequently resolved.

The most recent fire alarm system complaint from 2017 was corrected within a week. Recent 311 calls primarily relate to exterior issues such as pavement defects and illegal postings on the street, with a general cleaning request and a 2009 graffiti incident on the building being resolved. All building permits and inspections have been properly closed out, indicating compliance with local regulations and prompt attention to safety concerns.