In 1993, the plant was closed after the discontinuation by Sears, Roebuck and Co. of its mail-order catalog, which had been the last major account printed there.

In 1999 the building was retrofitted and is currently owned by Digital Realty Trust operating as a carrier hotel and data center.

Supported by 4,675 steel-reinforced concrete columns, this type of construction not only served the Donnelley well, it also provided the perfect infrastructure for future tenants.

Current major tenants of the building include the Chicago Mercantile Exchange, Telx, Equinix, Steadfast Networks and CenturyLink.

Portions of the building, including the interior Memorial Library, were designed by architect Charles Klauder.