Exhibit 21.1



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|------------------------------------------------------------------------------------------------------------------------------------------ |  | -------------------------------------- |  | ------------------------------------------------
|Subsidiary                                                                                                                                 |  | State of Incorporation or Organization |  | Name under which Subsidiary
Conducts Business   
|                                                                                                                                           | 
|The financial statements of the following entities were consolidated into the financial statements of the Registrant at December 31, 2008: |  |                                       
|                                                                                                                                           |  |                                       
|Dining In, Inc.                                                                                                                            |  | Missouri                               |  | Dining In, Inc.                                 
|Duke Acquisition, Inc.                                                                                                                     |  | Georgia                                |  | Duke Acquisition, Inc.                          
|Duke Realty Ohio                                                                                                                           |  | Indiana                                |  | Duke Realty Ohio                                
|Duke Construction Limited Partnership                                                                                                      |  | Indiana                                |  | Duke Construction Limited Partnership           
|Duke Realty Construction, Inc.                                                                                                             |  | Indiana                                |  | Duke Realty Construction, Inc.                  
|Duke Realty Services, LLC                                                                                                                  |  | Indiana                                |  | Duke Realty Services, LLC                       
|Duke Realty Services Limited Partnership                                                                                                   |  | Indiana                                |  | Duke Realty Services Limited Partnership        
|Duke Business Centers Corporation                                                                                                          |  | Indiana                                |  | Duke Business Centers Corporation               
|Kenwood Office Associates                                                                                                                  |  | Ohio                                   |  | Kenwood Office Associates                       
|Duke Kentucky, Inc.                                                                                                                        |  | Kentucky                               |  | Duke Kentucky, Inc.                             
|Dugan SSP Realty, LLC                                                                                                                      |  | Indiana                                |  | Dugan SSP Realty, LLC                           
|Mark Center TMP, LLC                                                                                                                       |  | Delaware                               |  | Mark Center TMP, LLC                            
|ADS Place Phase I, LLC                                                                                                                     |  | Delaware                               |  | ADS Place Phase I, LLC                          
|BD Adena Development, LLC                                                                                                                  |  | Ohio                                   |  | BD Adena Development, LLC                       
|BD Adena Financing, LLC                                                                                                                    |  | Indiana                                |  | BD Adena Financing, LLC                         
|Physicians Office Building of Fort Wayne, LLC                                                                                              |  | Indiana                                |  | Physicians Office Building of Fort Wayne, LLC   
|BD Fort Wayne Financing, LLC                                                                                                               |  | Indiana                                |  | BD Fort Wayne Financing, LLC                    
|BD Center Pointe, LLC                                                                                                                      |  | Georgia                                |  | BD Center Pointe, LLC                           
|Bremner/Duke - Anson Development I, LLC                                                                                                    |  | Indiana                                |  | Bremner/Duke - Anson Development I, LLC         
|Bremner/Duke - AOA Arlington Development, L.P.                                                                                             |  | Indiana                                |  | Bremner/Duke - AOA Arlington Development, L.P.  
|                                                                                                                                          
|The Registrant accounted for the following entities on the equity method at December 31, 2008:                                            
|                                                                                                                                           |  |                                       
|B/D Limited Partnership                                                                                                                    |  | Indiana                                |  | B/D Limited Partnership                         
|Cincinnati Development Group LLC                                                                                                           |  | Ohio                                   |  | Cincinnati Development Group LLC                
|Dividend Discount Model.com LLC                                                                                                            |  | Indiana                                |  | Dividend Discount Model.com LLC                 
|Dugan Realty, LLC                                                                                                                          |  | Indiana                                |  | Dugan Realty, LLC                               
|Dugan Texas, LLC                                                                                                                           |  | Delaware                               |  | Dugan Texas, LLC                                
|Duke-Hawk, LLC                                                                                                                             |  | Indiana                                |  | Duke-Hawk, LLC                                  
|Hillside Partnership One LP                                                                                                                |  | Georgia                                |  | Hillside Partnership One                        
|Horizon Park Developers, Inc.                                                                                                              |  | Georgia                                |  | Horizon Park Developers, Inc.                   
|Lamida Group, LLC                                                                                                                          |  | Indiana                                |  | Lamida Group, LLC                               
|Northwinds Land, LLC                                                                                                                       |  | Georgia                                |  | Northwinds Land, LLC                            
|Cincinnati Development Group/Other Ventures LLC                                                                                            |  | Ohio                                   |  | Cincinnati Development Group/Other Ventures LLC 
|Dugan Millenia LLC                                                                                                                         |  | Florida                                |  | Dugan Millenia LLC                              
|Park Creek Venture                                                                                                                         |  | Indiana                                |  | Park Creek Venture                              
|BD Greenwood Development, LLC                                                                                                              |  | Indiana                                |  | BD Greenwood Development, LLC                   
|AD Pembroke Gardens, LLC                                                                                                                   |  | Indiana                                |  | AD Pembroke Gardens, LLC                        
|Shoppes of Montage, LLC                                                                                                                    |  | Pennsylvania                           |  | Shoppes of Montage, LLC                         
|AD West End, LLC                                                                                                                           |  | Minnesota                              |  | AD West End, LLC                                
|Browning/Duke, LLC                                                                                                                         |  | Delaware                               |  | Browning/Duke, LLC                              
|DRCS, LLC                                                                                                                                  |  | Delaware                               |  | DRCS, LLC                                       
|P&L Duke 3630 Peachtree, L.P.                                                                                                              |  | Georgia                                |  | P&L Duke 3630 Peachtree, L.P.                   
|Quantico Real Estate, LLC                                                                                                                  |  | Delaware                               |  | Quantico Real Estate, LLC                       
|Lafayette Real Estate, LLC                                                                                                                 |  | Delaware                               |  | Lafayette Real Estate, LLC                      
|Duke/Kane, LLC                                                                                                                             |  | North Carolina                         |  | Duke/Kane, LLC                                  
|G&E Healthcare REIT/Duke Chesterfield Rehab, LLC                                                                                           |  | Delaware                               |  | G&E Healthcare REIT/Duke Chesterfield Rehab, LLC
|Linden Development, LLC                                                                                                                    |  | New Jersey                             |  | Linden Development, LLC                         
|Duke/Hulfish, LLC                                                                                                                          |  | Delaware                               |  | Duke/Hulfish, LLC                               
|                                                                                                                                          
|The Registrant accounted for the following entity on the cost method at December 31, 2008:                                                
|                                                                                                                                           |  |                                       
|Pinnacle Media, LLC                                                                                                                        |  | Indiana                                |  | Pinnacle Media, LLC