640 Heritage Preservation Foundation | Celebrating the History and Architecture of the Women's Athletic Club Movement 640Heritage Preservation Foundation Celebrating the history architecture of the womens athletic club movement Our primary charitable purpose is to preserve and memorialize the history and architecture of the womans athletic club movement of the early 1900s as represented by the architecturally significant and historic Womans Athletic Club of San Francisco building located at 640 Sutter Street and still functioning as a womans athletic club. The 640 Heritage Preservation Foundation is a 501c3 nonprofit public benefit organization that was incorporated in January of 2004 in the State of California. The Foundations mission is To preserve and celebrate the history architecture and heritage of womens athletic clubs in San Francisco with particular reference to the building formerly known as the Womans Athletic Club of San Francisco located at 640 Sutter Street through research public education and funding activities. You can view the Foundations IRS 990 forms from 2019 2018 2017 and 2016as well as completed financial reviews from 2015and 2014 online or in the 640 Heritage Preservation Foundation office located at 640 Sutter Street.