Presolicitation notice from the GENERAL SERVICES ADMINISTRATION, PUBLIC BUILDINGS SERVICE, PBS R5 OFFICE OF LEASING, seeks 10,630 ABOA SF of Office Space in Chicago, IL. The U.S. Government currently occupies office and related space in a building under a lease in Chicago, IL, that will be expiring. The Government is considering alternative space if economically advantageous. In making this determination, the Government will consider, among other things, the availability of alternative space that potentially can satisfy the Government’s requirements, as well as costs likely to be incurred through relocating, such as physical move costs, replication of tenant improvements and telecommunication infrastructure, and non-productive agency downtime.