1400 47th Ave, San Francisco, CA 94122

The 7-unit, 2-story multi-family residential building at 1400 47th Avenue in the Outer Sunset, built in 1960 and owned by William C. and Mabel K. Auyeung, has undergone several significant safety and infrastructure improvements over the past decade. Most notably, the building completed a mandatory soft-story retrofit in 2017-2018 with associated revisions, demonstrating compliance with San Francisco's seismic safety requirements.

Recent improvements include the installation of a new 400-amp electrical service completed in October 2024, indicating an upgrade to the building's power infrastructure. The building has experienced several maintenance and safety challenges, particularly between 2017-2018, including multiple fire safety violations (regarding egress obstruction, fire escape ladders, fire extinguishers, and alarm systems) which were all abated by February 2018. During the same period, tenants reported issues with mold, cockroach infestations, and structural concerns in stairways and the garage, particularly affecting Unit 5. While these complaints were officially closed, they raise historical concerns about past maintenance responsiveness.

The property has maintained ongoing attention to infrastructure needs, including sewer and trap replacements in 2011, various street space permits, and recent electrical upgrades. The building's history includes two instances of sewer stoppages in late 2010, which were addressed through plumbing interventions. Recent inspections of the property, including a 2021 fire alarm system complaint that was quickly resolved, suggest improved maintenance practices in recent years. Outside the building, multiple 311 calls in 2024 primarily related to street cleaning, with some parking enforcement issues, though these are external to the building's operations. The property has also been involved in planning matters, including a disapproved rear yard variance request and a cancelled proposal for Sprint wireless equipment installation.