EXHIBIT 12.1

DUKE REALTY LIMITED PARTNERSHIP

CALCULATION OF RATIO OF EARNINGS TO
FIXED CHARGES AND RATIO OF EARNINGS TO

COMBINED FIXED CHARGES AND PREFERRED DISTRIBUTIONS

(in thousands, except ratios)



|                                                                           |  |                                |         |  |                            |   |         |                            |  |   |                            |     |  |                            |         |     |                            |   |         |  |  |   |         | 
|-------------------------------------------------------------------------- |  | ------------------------------ | ------- |  | -------------------------- | - | ------- | -------------------------- |  | - | -------------------------- | --- |  | -------------------------- | ------- | --- | -------------------------- | - | ------- |  |  | - | ------- | 
|                                                                           |  | Three MonthsEndedMarch 31,2011 |         |  | Year EndedDecember 31,2010 |   |         | Year EndedDecember 31,2009 |  |   | Year EndedDecember 31,2008 |     |  | Year EndedDecember 31,2007 |         |     | Year EndedDecember 31,2006 |  
|Net income (loss) from continuing operations, less preferred distributions |  | $                              | 37,369  |  |                            | $ | (39,852 | )                          |  | $ | (327,330                   | )   |  | $                          | 14,453  |     |                            | $ | 102,560 |  |  | $ | 101,145 | 
|Preferred distributions                                                    |  |                                | 15,974  |  |                            |   | 69,468  |                            |  |   | 73,451                     |     |  |                            | 71,426  |     |                            |   | 58,292  |  |  |   | 56,419  | 
|Interest expense                                                           |  |                                | 66,082  |  |                            |   | 238,887 |                            |  |   | 205,433                    |     |  |                            | 183,448 |     |                            |   | 159,702 |  |  |   | 156,609 | 
|                                                                           |  |                                |         |  |                            |   |         |                            |  |   |                            |     |  |                            |         |     |                            |   |         |  |  |   |         | 
|Earnings (loss) before fixed charges                                       |  | $                              | 119,425 |  |                            | $ | 268,503 |                            |  | $ | (48,446                    | )   |  | $                          | 269,327 |     |                            | $ | 320,554 |  |  | $ | 314,173 | 
|                                                                           |  |                                |         |  |                            |   |         |                            |  |   |                            |     |  |                            |         |     |                            |   |         |  |  |   |         | 
|Interest expense                                                           |  | $                              | 66,082  |  |                            | $ | 238,887 |                            |  | $ | 205,433                    |     |  | $                          | 183,448 |     |                            | $ | 159,702 |  |  | $ | 156,609 | 
|Interest costs capitalized                                                 |  |                                | 1,500   |  |                            |   | 11,498  |                            |  |   | 26,864                     |     |  |                            | 53,456  |     |                            |   | 59,167  |  |  |   | 36,260  | 
|                                                                           |  |                                |         |  |                            |   |         |                            |  |   |                            |     |  |                            |         |     |                            |   |         |  |  |   |         | 
|Total fixed charges                                                        |  |                                | 67,582  |  |                            |   | 250,385 |                            |  |   | 232,297                    |     |  |                            | 236,904 |     |                            |   | 218,869 |  |  |   | 192,869 | 
|                                                                           |  |                                |         |  |                            |  
|Preferred distributions                                                    |  |                                | 15,974  |  |                            |   | 69,468  |                            |  |   | 73,451                     |     |  |                            | 71,426  |     |                            |   | 58,292  |  |  |   | 56,419  | 
|                                                                           |  |                                |         |  |                            |   |         |                            |  |   |                            |     |  |                            |         |     |                            |   |         |  |  |   |         | 
|Total fixed charges and preferred distributions                            |  | $                              | 83,556  |  |                            | $ | 319,853 |                            |  | $ | 305,748                    |     |  | $                          | 308,330 |     |                            | $ | 277,161 |  |  | $ | 249,288 | 
|                                                                           |  |                                |         |  |                            |   |         |                            |  |   |                            |     |  |                            |         |     |                            |   |         |  |  |   |         | 
|Ratio of earnings to fixed charges                                         |  |                                | 1.77    |  |                            |   | 1.07    |                            |  |   | N/A                        | (2) |  |                            | 1.14    |     |                            |   | 1.46    |  |  |   | 1.63    | 
|                                                                           |  |                                |         |  |                            |   |         |                            |  |   |                            |     |  |                            |         |     |                            |   |         |  |  |   |         | 
|Ratio of earnings to fixed charges and preferred distributions             |  |                                | 1.43    |  |                            |   | N/A     | (1)                        |  |   | N/A                        | (3) |  |                            | N/A     | (4) |                            |   | 1.16    |  |  |   | 1.26    | 
|                                                                           |  |                                |         |  |                            |   |         |                            |  |   |                            |     |  |                            |         |     |                            |   |         |  |  |   |         | 



|(1) | N/A  The ratio is less than 1.0; deficit of $51.4 million exists for the year ended December 31, 2010. The calculation of earnings includes $348.6 million of
non-cash depreciation expense.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(2) | N/A  The ratio is less than 1.0; deficit of $280.7 million exists for the year ended December 31, 2009. The calculation of earnings includes $322.9 million
of non-cash depreciation expense.
|--- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(3) | N/A  The ratio is less than 1.0; deficit of $354.2 million exists for the year ended December 31, 2009. The calculation of earnings includes $322.9 million
of non-cash depreciation expense.
|--- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(4) | N/A  The ratio is less than 1.0; deficit of $39.0 million exists for the year ended December 31, 2008. The calculation of earnings includes $292.2 million of
non-cash depreciation expense.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------