470 23rd Ave, San Francisco, CA 94121

The three-unit residential building at 470 23rd Avenue in the Central Richmond neighborhood, owned by Fred & Betty Lui, has undergone significant recent improvements to enhance safety and modernize facilities since 2017. Most notably, in 2020, the building completed a $20,000 fire alarm system upgrade to comply with San Francisco Fire Code requirements, including both manual and automatic fire alarm system components. The property underwent substantial renovations between 2016-2020, including the conversion of a ground floor area into Studio Unit 4, complete with a new kitchen and bathroom, followed by comprehensive upgrades to all three units featuring modern electrical systems, new kitchens, bathrooms, and lighting.

The building's safety systems received particular attention, with the installation of a new fire sprinkler system ($10,800) and related plumbing enhancements in 2020. Historical records show the building had several fire safety violations in 2003-2004, including issues with egress obstruction and fire escape ladder maintenance, but these were resolved. There were also two construction-related complaints in 2016 regarding debris containment and work hours, but these were marked as not active.

The property has undergone multiple system-wide upgrades, including new backflow systems, heat pump installation, and various unit improvements. Recent municipal service records (2024) indicate minimal issues, primarily concerning street cleaning matters, with no building-related violations reported in the past several years. The complete renovation work included substantial electrical upgrades across all units, installation of new appliances, and improved safety systems, demonstrating ongoing investment in maintaining and upgrading the property.