A few businesses had occupied the headhouse since the halt of train service in 1971, while the United States Postal Service (USPS) took over the rear of the building. The concourse and waiting room were used for some postal service activities and storage. After lying dormant for several years in the 1970s, the train tracks were removed from the train deck and it was paved with a flat surface. It began to be used for staging semi-trailer trucks carrying mail to and from the neighboring Downtown St. Paul Central Post Office as well as USPS employee parking. A driveway ramp was sliced into the train deck at the intersection of Kellogg Boulevard and Broadway Street for USPS vehicles. In the early 2000s, the upper levels of the headhouse were converted into 33 2-story loft condominiums.