One South Dearborn's Tenant® Portal: Building Operations
Building Operations

Building security and the safety of our tenants and visitors is our highest priority. The building security system and procedures have been put in place to maximize personal safety and minimize property damage. Building Access is controlled via key cards given to each tenant and a state of the art iVisitor system for the many visitors arriving at One South Dearborn. The security staff also monitors vendors coming on site to the property by having strict procedures in place at the loading dock.

Building Hours

Building Access


Loading Dock & Service Elevators


Security Staff

Security Tips

Lost & Found