EXHIBIT 21 SUBSIDIARIES OF DUKE REALTY INVESTMENTS, INC. State of Names Under Which Incorporation Subsidiary Does Subsidiary or Organization Business - ------------------------- ------------------- ------------------------ Duke Realty Limited Indiana Duke Realty Limited Partnership Partnership Duke Services, Inc. Indiana Duke Services, Inc. Duke Realty Services Indiana Duke Realty Services Limited Partnership Limited Partnership Duke Realty Construction, Indiana Duke Realty Construction, Inc. Inc. Duke Construction Limited Indiana Duke Construction Limited Partnership Partnership B/D Limited Partnership Indiana B/D Limited Partnership Lamida Partners Limited Ohio Lamida Partners Limited Partnership Partnership Duna Developers Ohio Duna Developers Kenwood Office Associates Ohio Kenwood Office Associates Park Creek Venture Indiana Park Creek Venture Parkrite Limited Partnership Indiana Parkrite Limited Partnership Post Road Limited Partnership Indiana Post Road Limited Partnership Shadeland Station Office Indiana Shadeland Station Office Associates II Limited Associates II Limited Partnership Partnership SCRED Ohio Limited Ohio SCRED Ohio Limited Partnership Partnership Dugan Realty L.L.C. Indiana Dugan Realty L.L.C. Duke/Tees Joint Venture Indiana Duke/Tees J.V. Park Fletcher Limited Indiana Park Fletcher Limited Partnership 2728 Partnership 2728 Cincinnati Development Ohio Cincinnati Development Group L.L.C. Group L.L.C.