American Assets Trust, Inc. Enters into Purchase Agreement to Acquire the Pacific Ridge Apartments in San Diego, California

Exhibit 99.1

American Assets Trust, Inc. Enters into Purchase Agreement to Acquire the Pacific Ridge Apartments in San Diego, California

Company Release - 3/27/17

SAN DIEGO -American Assets Trust, Inc. (NYSE: AAT) (the “Company”) has entered into a purchase agreement to acquire the Pacific Ridge Apartments (the “Property”), a 533 unit luxury apartment community located in San Diego, California that was completed in 2013 and is currently approximately 97% leased.

The Property is perched atop a bluff offering unobstructed panoramic views of the Pacific Ocean with an unparalleled amenities package and designed with a large focus on environmental sustainability.

The Property’s central location in San Diego provides residents with convenient access to the light rail systems, extending residents reach to downtown, the San Diego International Airport, the San Diego Zoo, sporting venues, numerous malls and retail centers, three universities, culinary destinations and the freeway and public transportation.

The purchase price is approximately $232 million, to be paid with a combination of cash on hand and funds drawn against the Company’s existing credit facility.

The acquisition is subject to customary closing conditions. The Company can offer no assurances that this acquisition will close on the terms described herein, or at all.

The transaction is being structured to accommodate a possible tax deferred exchange pursuant to the provisions of Section 1031 of the Internal Revenue Code of 1986 and applicable state revenue and taxation code sections.

About American Assets Trust, Inc.

American Assets Trust, Inc. is a full service, vertically integrated and self-administered real estate investment trust, or REIT, headquartered in San Diego, California. The Company has over 50 years of acquiring, improving, developing and managing premier retail, office and residential properties throughout the United States in some of the nation’s most dynamic, high-barrier-to-entry markets primarily in Southern California, Northern California, Oregon, Washington and Hawaii. The Company's retail portfolio comprises approximately 3.1 million rentable square feet, and its office portfolio comprises approximately 2.7 million square feet. In addition, the Company owns one mixed-use property (including approximately 97,000 rentable square feet of retail space and a 369-room all-suite hotel) and over 1,579 multifamily units. In 2011, the Company was formed to succeed to the real estate business of American Assets, Inc., a privately held corporation founded in 1967 and, as such, has significant experience, long-standing relationships and extensive knowledge of its core markets, submarkets and asset classes. For additional information, please visit ▇▇▇.▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇.▇▇▇.

Forward Looking Statements

This press release may contain forward-looking statements within the meaning of the federal securities laws, which are based on current expectations, forecasts and assumptions that involve risks and uncertainties that could cause actual outcomes and results to differ materially. Forward-looking statements relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar expressions concerning matters that are not historical facts. In some cases, you can identify forward-looking statements by the use of forward-looking terminology such as "may," "will," "should," "expects," "intends," "plans," "anticipates," "believes," "estimates," "predicts," or "potential" or the negative of

these words and phrases or similar words or phrases which are predictions of or indicate future events or trends and which do not relate solely to historical matters. While forward-looking statements reflect the Company's good faith beliefs, assumptions and expectations, they are not guarantees of future performance. For a further discussion of these and other factors that could cause the Company's future results to differ materially from any forward-looking statements, see the section entitled "Risk Factors" in the Company's annual report on Form 10-K filed on February 17, 2017 and other risks described in documents subsequently filed by the Company from time to time with the Securities and Exchange Commission. The Company disclaims any obligation to publicly update or revise any forward-looking statement to reflect changes in underlying assumptions or factors, of new information, data or methods, future events or other changes.

Source: American Assets Trust, Inc.

Investor and Media Contact:

American Assets Trust

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Executive Vice President and Chief Financial Officer

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