Exhibit 99.1

News Release

FOR IMMEDIATE RELEASE

DUKE REALTY REPORTS

THIRD QUARTER 2012 RESULTS

Core FFO per share of $0.26

Continued Strong Operating Performance with

In-Service Occupancy at 92.5 percent

Advancing Asset Strategy Ahead of Plan with

Continued Strong Development Activity of $115 million in New Starts and

Medical Office Acquisitions of $92 million

Efficient Capital Raising with $300 million Ten-Year, Senior Note Issuance at a 3.93 Percent Effective Yield and $85 million of ATM issuance

(INDIANAPOLIS, October 31, 2012) – Duke Realty Corporation (NYSE: DRE), a leading industrial, suburban and medical office property REIT, today reported results for the third quarter of 2012.

“Solid operational results, continued progress on our asset repositioning strategy and opportunistic capital raising resulted in a strong third quarter,” said Denny Oklak, Chairman and CEO. “Core FFO was $0.26 per share and AFFO was $0.20 per share. We completed 7.4 million square feet of leasing activity and maintained an in-service portfolio occupancy of 92.5 percent. We achieved strong same-property net operating income growth of 3.5 percent as compared to the twelve months ended September 30, 2011. There was continued strong momentum in new development starts during the quarter with five build-to-suit projects and two strategic speculative development projects under construction, all with solid risk-adjusted yields. We also completed significant medical office acquisition activity during the quarter and in early

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October, substantially advancing our asset repositioning strategy. We continued to lower our cost of capital with the issuance of $300 million of ten-year, senior unsecured notes at a company record low 3.93 percent effective rate, in addition to raising $85 million of proceeds from our at-the-market common equity program. Overall, we are pleased with a very successful third quarter.”

Quarterly Highlights

Core Funds from Operations (“Core FFO”) per diluted share was $0.26 for the quarter. Funds from Operations (“FFO”) per diluted share, as defined by the National Association of Real Estate Investment Trusts (“NAREIT”), was also $0.26 for the quarter.

Solid operating results:

Progress on asset and capital strategies:

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October 31, 2012

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Financial Performance

Operating Performance Highlights

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Real Estate Investment Activity

An acquisition of a seven building, 334,000 square foot medical office portfolio located in Northwest Georgia for $92 million closed during the third quarter of 2012. The portfolio was 100 percent leased to Harbin Clinic, LLC, one of the largest independent multi-specialty physician practices in the state of Georgia.

Following the end of the third quarter, the Company closed on the acquisition of a $342 million medical office portfolio. The geographically diversified portfolio includes fourteen facilities totaling over 1.2 million square feet that were 89.4 percent leased at closing. The acquisition included the assumption of $60 million of secured debt.

Development

The third quarter included the following development activity:

Wholly-Owned Properties

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Joint Venture Properties

Dispositions

Proceeds from property dispositions totaled $34 million during the quarter, of which $9.4 million was from two non-core industrial assets (12 percent occupied), $8 million from two office assets (73 percent occupied), $9.3 million from a medical office property held in a joint venture (100 percent occupied) and the remaining from sales of undeveloped land. The industrial and office dispositions comprised approximately 221,700 and 134,500 square feet, respectively, with a weighted average age of over 22 years.

2012 Earnings Guidance

The company tightened Core FFO guidance for 2012 from $0.98 to $1.06 to $1.00 to $1.04.

Dividends Declared

Our board of directors declared a quarterly cash dividend on our common stock of $0.17 per share, or $0.68 per share on an annualized basis. The third quarter dividend will be payable November 30, 2012 to shareholders of record on November 14, 2012. The board also declared the following dividends on our outstanding preferred stock:

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FFO and AFFO Reporting Definitions

Funds from Operations (“FFO”): FFO is computed in accordance with standards established by the National Association of Real Estate Investment Trusts (“NAREIT”). NAREIT defines FFO as net income (loss) excluding gains (losses) on sales of depreciable property, impairment charges related to depreciable real estate assets, and extraordinary items (computed in accordance with generally accepted accounting principles (“GAAP”)); plus real estate related depreciation and amortization, and after similar adjustments for unconsolidated joint ventures. The company believes FFO to be most directly comparable to net income as defined by GAAP. The company believes that FFO should be examined in conjunction with net income (as defined by GAAP) as presented in the financial statements accompanying this release. FFO does not represent a measure of liquidity, nor is it indicative of funds available for the company’s cash needs, including the company’s ability to make cash distributions to shareholders.

Core Funds from Operations (“Core FFO”): Core FFO is computed as FFO adjusted for certain items that are generally non-cash in nature and that materially distort the comparative measurement of company performance over time. The adjustments include impairment charges, tax expenses or benefit related to (i) changes in deferred tax asset valuation allowances, (ii) changes in tax exposure accruals that were established as the result of the adoption of new accounting principles, or (iii) taxable income (loss) related to other items excluded from FFO or Core FFO (collectively referred to as “other income tax items”), gains (losses) on debt transactions, adjustments on the repurchase of preferred stock, gains (losses) on and related costs of acquisitions, and severance charges related to overhead restructuring activities. Although the company’s calculation of Core FFO differs from NAREIT’s definition of FFO and may not be comparable to that of other REITs and real estate companies, the company believes it provides a meaningful supplemental measure of its operating performance.

Adjusted Funds from Operations (“AFFO”): AFFO is defined by the company as Core FFO (as defined above), less recurring building improvements and second generation capital expenditures (the leasing of vacant space that had previously been under lease by the company is referred to as second generation lease activity) and adjusted for certain non-cash items including straight line rental income, non-cash components of interest expense and stock compensation expense, and after similar adjustments for unconsolidated partnerships and joint ventures.

Same Property Performance

The company includes same-property net operating income growth as a property-level supplemental measure of performance. The company does not believe same-property net operating income growth to be a primary measure of overall

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company operating performance. The company utilizes same-property net income growth as a supplemental measure to evaluate property-level performance, without differentiating or making adjustment as to whether a property is consolidated or jointly controlled.

A description of the properties that are excluded from the company’s same-property measure is included on page 21 of our September 30, 2012 supplemental information.

About Duke Realty

Duke Realty owns and operates approximately 142 million rentable square feet of industrial and office assets, including medical office, in 18 major U.S. cities. Duke Realty is publicly traded on the NYSE under the symbol DRE and is listed on the S&P MidCap 400 Index. More information about Duke Realty is available at www.dukerealty.com.

Third Quarter Earnings Call and Supplemental Information

Duke Realty is hosting a conference call tomorrow, November 1, 2012, at 3:00 p.m. EDT to discuss its third quarter operating results. All investors and other interested parties are invited to listen to the call. Access is available through the Investor Relations section of the company’s website.

A copy of the company’s supplemental information will be available by 6:00 p.m. EDT today through the Investor Relations section of the company’s website.

Cautionary Notice Regarding Forward-Looking Statements

This news release may contain forward-looking statements within the meaning of the federal securities laws. All statements, other than statements of historical facts, including, among others, statements regarding the company’s future financial position or results, future dividends, and future performance, are forward-looking statements. Those statements include statements regarding the intent, belief or current expectations of the company, members of its management team, as well as the assumptions on which such statements are based, and generally are identified by the use of words such as “may,” “will,” “seeks,” “anticipates,” “believes,” “estimates,” “expects,” “plans,” “intends,” “should,” or similar expressions. Forward-looking statements are not guarantees of future performance and involve risks and uncertainties that actual results may differ materially from those contemplated by such forward-looking statements. Many of these factors are beyond the company’s abilities to control or predict. Such factors include, but are not limited to, (i) general adverse economic and local real estate conditions; (ii) the inability of major tenants to continue paying their rent obligations due to bankruptcy, insolvency or a general downturn in their business; (iii) financing risks, such as the inability to obtain equity, debt or other sources of

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financing or refinancing on favorable terms, if at all; (iv) the company’s ability to raise capital by selling its assets; (v) changes in governmental laws and regulations; (vi) the level and volatility of interest rates and foreign currency exchange rates; (vii) valuation of joint venture investments, (viii) valuation of marketable securities and other investments; (ix) valuation of real estate; (x) increases in operating costs; (xi) changes in the dividend policy for the company’s common stock; (xii) the reduction in the company’s income in the event of multiple lease terminations by tenants; (xiii) impairment charges, (xiv) the effects of geopolitical instability and risks such as terrorist attacks; (xv) the effects of weather and natural disasters such as floods, droughts, wind, tornados and hurricanes; and (xvi) the effect of any damage to our reputation resulting from developments relating to any of items (i) – (ix). Additional information concerning factors that could cause actual results to differ materially from those forward-looking statements is contained from time to time in the company’s filings with the Securities and Exchange Commission. The company refers you to the section entitled “Risk Factors” contained in the company’s Annual Report on Form 10-K for the year ended December 31, 2011. Copies of each filing may be obtained from the company or the Securities and Exchange Commission.

The risks included here are not exhaustive and undue reliance should not be placed on any forward-looking statements, which are based on current expectations. All written and oral forward-looking statements attributable to the company, its management, or persons acting on their behalf are qualified in their entirety by these cautionary statements. Further, forward-looking statements speak only as of the date they are made, and the company undertakes no obligation to update or revise forward-looking statements to reflect changed assumptions, the occurrence of unanticipated events or changes to future operating results over time unless otherwise required by law.

Contact Information:

Investors:

Ron Hubbard

317.808.6060

Media:

Helen McCarthy

317.708.8010

Duke Realty Corporation

Statement of Operations

September 30, 2012

(In thousands, except per share amounts)

Duke Realty Corporation

Statement of Funds From Operations

September 30, 2012

(In thousands, except per share amounts)

Duke Realty Corporation

Balance Sheet

September 30, 2012

(In thousands, except per share amounts)