Exhibit 99.1

News Release

Inquiries: Jeanne Leonard, Liberty Property Trust, 610.648.1704

Liberty Property Trust Announces Third Quarter 2018 Results

Wayne, PA — October 23, 2018 — Liberty Property Trust (NYSE: LPT) announced financial and operating results for the quarter ended September 30, 2018.

Highlights for Third Quarter 2018

·                  Net income available to common shareholders $1.01 per diluted share

·                  NAREIT Funds from Operations $0.69 per diluted share

·                  Same store operating income for the industrial portfolio increased by 3.8% over prior year quarter on a U.S. GAAP basis and 4.1% on a cash basis

·                  Industrial portfolio occupancy 96.5% at quarter-end

·                  Industrial rents increased 17.5% on a U.S. GAAP basis and 7.7% on cash basis

·                  $52.8 million in developments delivered

·                  $179.0 million in development starts

·                  $101.1 million in asset acquisitions

·                  $255.0 million in asset dispositions totaling 806,000 square feet

Earnings Guidance

·                  Liberty revised U.S. GAAP net income available to common shareholders per diluted share guidance range for 2018 to be $3.17 - $3.33 from a previous range of $3.24 - $3.59

·                  Liberty increased NAREIT Funds from Operations per diluted share guidance range for 2018 to be $2.07 - $2.09 from a previous range of $2.01 - $2.08

Management Comments:

“Liberty’s strong results reflect the unique landscape in which we are operating and our ability to capitalize on this environment. We continue to benefit from the dynamic and evolving logistics industry and robust demand for quality industrial space from users both large and small,” said Bill Hankowsky, Chairman and Chief Executive Officer. “Consistent with the opportunities we see in the marketplace, we intend to complete our strategic shift by monetizing our remaining, high-quality office assets and focusing our efforts and capital solely on our industrial platform.”

Financial Results

Net income: Net income available to common shareholders for the third quarter of 2018 was $150.1 million, or $1.01 per diluted share, compared to $59.5 million, or $0.40 per diluted share, for the third quarter of 2017. For the nine months ended September 30, 2018, net income available to common

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shareholders was $309.9 million, or $2.09 per diluted share, compared to $154.0 million, or $1.04 per diluted share, for the first nine months of 2017.

Net income for the third quarter of 2018 includes gains on sale of $96.9 million, or $0.64 per diluted share, compared to $23.8 million, or $0.16 per diluted share, for the same period in 2017. Net income for the nine months ended September 30, 2018 includes gains on sale of $239.4 million, or $1.58 per diluted share, compared to $30.5 million, or $0.20 per diluted share, for the first nine months of 2017.

Net income for the first nine months of 2018 includes $60.0 million in additional development service fee expense relating to the completion of development of Comcast Technology Center, and a $26.0 million non-cash impairment charge associated with the development of a mixed-use project in Camden, New Jersey.

Funds from Operations: The company uses the National Association of Real Estate Investment Trusts (“NAREIT”) definition of Funds from Operations (“FFO”) as an operating measure of the company’s financial performance.  A reconciliation of U.S. GAAP net income to NAREIT FFO is included in the financial data tables accompanying this press release.

NAREIT FFO available to common shareholders for the third quarter of 2018 was $105.1 million, or $0.69 per diluted share, compared to $99.2 million, or $0.66 per diluted share, for the third quarter of 2017.  FFO available to common shareholders for the nine months ended September 30, 2018 was $221.3 million, or $1.46 per diluted share, compared to $288.1 million, or $1.91 per diluted share, for the first nine months of 2017. FFO for the first nine months of 2018 was impacted by the aforementioned development service fee expenses and non-cash impairment charge totaling $86.0 million, or $0.57 per diluted share.

Operating Performance

Occupancy: At September 30, 2018, Liberty’s in-service portfolio of 103.5 million square feet was 96.6% occupied, compared to 97.0% at the end of the second quarter of 2018. During the quarter, Liberty completed leasing transactions totaling 5.1 million square feet, and occupancy on a signed but not yet commenced basis as of September 30, 2018 was 97.2%.

·                  Occupancy of Liberty’s 97.5 million square foot industrial portfolio was 96.5% at quarter-end, compared to 97.0% for the previous quarter. Industrial distribution rents increased 17.5% on a U.S. GAAP basis on retention and replacement leases signed during the quarter.  Of these leases, 99.5% have built-in rent escalators.

·                  Occupancy of Liberty’s 6.0 million square foot office portfolio was 96.9% at quarter-end, compared to 96.6% for the previous quarter. Office rents increased 45.8% on a U.S. GAAP basis on retention and replacement leases signed in the office portfolio, and 90.8% of these leases contain built-in rent escalators.

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Same Store Performance: Property level operating income for same store industrial properties increased by 4.1% on a cash basis and by 3.8% on a U.S. GAAP basis for the third quarter of 2018, compared to the same quarter in 2017.  For the nine months ended September 30, 2018, property level operating income for same store industrial properties increased by 5.4% on a cash basis and by 4.2% on a U.S. GAAP basis, compared to the same period in 2017.

Real Estate Investments

Development Deliveries: In the third quarter, Liberty brought into service three industrial development properties for a total investment of $52.8 million. The properties contain 803,000 square feet of leasable space and were 64.7% occupied as of the end of the quarter. The yield on these properties at September 30, 2018 was 4.4% and the projected stabilized yield is 7.5%.

Development Starts: In the third quarter, Liberty began development of eight properties totaling 1.8 million square feet of leasable space at a projected investment of $179.0 million. The properties consist of seven industrial distribution buildings and one build-to-suit office property.

Acquisitions: During the third quarter, Liberty purchased two industrial buildings in New Jersey and one industrial building in Texas totaling 1.3 million square feet for $101.1 million.

Subsequent to quarter end, Liberty purchased seven industrial properties totaling 1.1 million square feet in the United Kingdom for £111 million.

Real Estate Dispositions

During the third quarter Liberty sold five office buildings in Arizona totaling 806,000 square feet for $255.0 million. The company recorded a gain on this sale of $94.9 million in the third quarter of 2018. Liberty also sold 66 acres of land in the Lehigh Valley for proceeds of $9.7 million and recorded a gain of $1.9 million in the third quarter of 2018.

2018 Outlook

·                  Liberty has revised its guidance range for 2018 net income available to common shareholders to $3.17 - $3.33 per diluted share. This change reflects charges incurred in the second quarter.

·                  Liberty has revised its guidance range for 2018 NAREIT FFO to $2.07 - $2.09 per diluted share. This change reflects charges incurred in the second quarter. Without charges, the new range would be $2.64 - $2.66 per diluted share.

·                  Rental increases on renewal and replacement leases in the industrial portfolio during 2018 are expected to range from 13% - 15% on a GAAP basis and from 5% to 6% on a cash basis.

·                  Projected disposition activity range increased to $800 — $950 million from $700 - $900 million.

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A reconciliation of projected U.S. GAAP net income available to common shareholders per share to projected NAREIT FFO per share for 2018 and projected FFO per diluted share before charges is below. Additional information on assumptions underlying this guidance is included in Liberty’s third quarter supplemental financial report on the company’s website.

About the Company

Liberty Property Trust (NYSE:LPT) is a leader in commercial real estate, serving customers in the United States and United Kingdom, through the development, acquisition, ownership and management of industrial and office properties. Liberty’s 103.5 million square foot operating portfolio provides productive work environments for 1,200 tenants.

Additional information about the company, including Liberty’s Quarterly Supplemental Package with detailed financial information is available in the Investors section of the company’s web site at www.libertyproperty.com. If you are unable to access the web site, a copy of the supplemental package may be obtained by contacting Liberty by phone at 610-648-1704, or by e-mail to jleonard@libertyproperty.com.

Liberty will host a conference call during which management will discuss third quarter results, on Tuesday, October 23, 2018, at 9 a.m. Eastern Time.  To access the conference call, please dial 855-277-7530. The passcode needed for access is 5989189. A replay of the call will be available until November 24, 2018, by dialing 1-855-859-2056 using the same passcode as above. The call can also be accessed via the Internet on the Investors page of Liberty’s web site at www.libertyproperty.com.

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Forward-Looking Statements

The statements contained in this press release may include forward-looking statements within the meaning of the federal securities law.  These forward-looking statements include statements relating to, among others things, achievement of strategic targets, expectations for our operating results, business and financial condition, business and our growth prospects, as well as statements that are generally accompanied by words such as “believes,” “anticipates,” “expects,” “estimates,” “should,” “seeks,” “intends,” “proposed,” “planned,” “outlook,” “remain confident,” and “goal” or similar expressions. Although Liberty believes that the expectations reflected in such forward-looking statements are based on reasonable assumptions, it can give no assurance that its expectations will be achieved.  As forward-looking statements, these statements involve risks, uncertainties and other factors that could cause actual results to differ materially from the expected results.  These risks, uncertainties and other factors include, without limitation, uncertainties affecting real estate business generally (such as entry into new leases, renewals of leases and dependence on tenants’ business operations), risks relating to our ability to maintain and increase property occupancy and rental rates, risks relating to the continued repositioning of the company’s portfolio, risks relating to construction and development activities, risks relating to acquisition and disposition activities, risks relating to the integration of the operations of entities that we have acquired or may acquire, risks relating to joint venture relationships and any possible need to perform under certain guarantees that we have issued or may issue in connection with such relationships, risks related to properties developed by the company on a fee basis, risks associated with tax abatement, tax credit programs, or other government incentives, possible environmental liabilities, risks relating to leverage and debt service (including availability of financing terms acceptable to the company and sensitivity of the company’s operations and financing arrangements to fluctuations in interest rates), dependence on the primary markets in which the company’s properties are located, the existence of complex regulations relating to status as a REIT and the adverse consequences of the failure to qualify as a REIT, risks relating to litigation and the potential adverse impact of market interest rates on the market price for the company’s securities, and other risks and uncertainties detailed in the company’s filings with the Securities and Exchange Commission.  The company assumes no obligation to update or supplement forward-looking statements that become untrue because of subsequent events.

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Liberty Property Trust

Balance Sheet

September 30, 2018

(Unaudited and in thousands)

Liberty Property Trust

Statement of Operations

September 30, 2018

(Unaudited and in thousands, except per share amounts)

Liberty Property Trust

Statement of Funds from Operations

September 30, 2018

(Unaudited and in thousands, except per share amounts)

NAREIT Funds from Operations available to common shareholders is defined by NAREIT as net income (computed in accordance with U.S. GAAP), excluding gains (or losses) from sales of depreciable property and impairments of depreciable real estate assets, plus depreciation and amortization, and after adjustments for unconsolidated partnerships and joint ventures.  The SEC has agreed to the disclosure of this non-GAAP financial measure on a per share basis in its Release No. 34-47226, Conditions for Use of Non-GAAP Financial Measures. The Company believes that the calculation of NAREIT FFO is helpful to investors and management as it is a measure of the Company’s operating performance that excludes depreciation and amortization and gains and losses from operating property dispositions. As a result, year over year comparison of NAREIT FFO reflects the impact on operations from trends in occupancy rates, rental rates, operating costs, development activities, general and administrative expenses, and interest costs, providing perspective not immediately apparent from net income. In addition, management believes that NAREIT FFO provides useful information to the investment community about the Company’s financial performance when compared to other REITs since NAREIT FFO is generally recognized as the standard for reporting the operating performance of a REIT. NAREIT FFO available to common shareholders does not represent net income or cash flows from operations as defined by U.S. GAAP and does not necessarily indicate that cash flows will be sufficient to fund cash needs. It should not be considered as an alternative to net income as an indicator of the Company’s operating performance or to cash flows as a measure of liquidity. NAREIT FFO available to common shareholders also does not represent cash flows generated from operating, investing or financing activities as defined by U.S. GAAP. The Company believes that the line on its consolidated statements of comprehensive income entitled “net income available to common shareholders” is the most directly comparable U.S. GAAP measure to FFO.