680-682 4th Ave, San Francisco, CA 94118

The three-unit multi-family residential building at 680-682 4th Avenue in the Inner Richmond, owned by Matsunaga Hirokichi & Junko, has undergone several significant maintenance and safety improvements since its construction in 1905. Most recently, in 2019, the building received a high-efficiency heating system upgrade and foundation stabilization work costing $11,200 was completed in 2018. The property has a documented history of addressing structural concerns, including multiple instances of stair repairs due to dry rot, with the most recent occurring in 2016 following a routine safety inspection.

This 2015 inspection also identified several fire safety issues that were subsequently resolved by April 2016, including the installation of carbon monoxide alarms, fire extinguishers, and repairs to smoke enclosure door closers. The building's maintenance record includes historical improvements such as a garage addition completed in 1990 and roof work in 1993. More recent infrastructure concerns have been addressed, including a sewer line issue in 2019 and various tree-related matters, with the most recent tree maintenance response occurring in 2024.

The property has been subject to regular housing inspections, with all identified violations being addressed and abated. Recent external incidents primarily involve parking enforcement matters, with a notable sewage backup issue in 2019 being effectively resolved through municipal intervention. The building appears to be actively maintained, with prompt responses to safety violations and infrastructure needs, particularly in terms of fire safety and structural integrity.