675-677 26th Ave, San Francisco, CA 94121

The property at 675-677 26th Avenue is a two-unit, two-story multi-family residential building located in San Francisco's Central Richmond neighborhood, constructed in 1924 and currently owned by Herbert Chow and Janet Woo Ch. The building has undergone several significant infrastructure improvements over the years, most notably in 2013 when both electrical and street space improvements were completed.

The electrical upgrade was substantial, increasing the service capacity from 60 amps to 200 amps and included installation of new meters, panels, and circuits. Earlier enhancements included the installation of exterior vinyl siding in 2005, covering approximately 2,038 square feet on the right side of the building, and a reroofing project from 1996 (though this permit has since expired).

The building's maintenance history shows recurring plumbing challenges, particularly with the sewer system, as evidenced by three incidents of sewage backup problems reported through the 311 system between 2016 and 2020, all of which were ultimately resolved. A general service request was made to the Department of Public Works in 2018, though no conditions were found requiring action. While the property has received various upgrades over time, the pattern of sewer-related issues suggests this may be an ongoing maintenance concern, though it's worth noting that no such incidents have been reported in the past three years.