1300 31st Ave, San Francisco, CA 94122

The 6-unit, 2-story multi-family residential building at 1300 31st Avenue in the Central Sunset neighborhood, owned by Carl Kwock Fon and Sally Jane Lee, has undergone several significant improvements and faced some maintenance challenges since its construction in 1961. Most recently, in 2023, the building addressed a window-related violation by replacing single-pane aluminum windows with energy-efficient double-pane fiberglass products in Unit #6. This followed a complaint about mold and window issues that was filed in June 2023.

The building completed its mandatory soft-story retrofit in 2014, demonstrating compliance with seismic safety requirements, and underwent significant improvements during the same period including a remodeling of the ground floor manager's office with new restroom facilities, installation of a new 300-amp service electrical system, and associated plumbing work. Historical maintenance records show attention to structural issues, including dry rot repairs in 2005 and window installations as far back as 1989. The property has maintained regular inspections, with a routine inspection noted in 2018.

Although there was a fire safety complaint regarding an illegal occupancy in 2017 and issues with alarm systems in 2012 (both were resolved), no significant fire incidents have been recorded. Recent activity around the property has predominantly involved street cleaning matters, as evidenced by numerous 311 calls throughout 2024 regarding sidewalk debris and abandoned items, though these are external to the building's structural and safety conditions. The building's history shows a pattern of addressing both mandatory compliance issues and voluntary improvements, with the most recent focus being on window replacements and energy efficiency upgrades.