435 Brannan Street in San Francisco is a commercial building located in the South of Market (SoMA) area. It was originally constructed in 1910 with reinforced concrete and has a lot size of 0.76 acres, according to LoopNet. The building is currently used for office space and is known for being the location of TechSoup. It's located in a Walker's Paradise with a Walk Score of 96, Rider's Paradise with a Transit Score of 100, and Biker's Paradise with a Bike Score of 91