News Release

PS Business Parks, Inc. 701 Western Avenue

Glendale, CA 91201-2349 psbusinessparks.com

For Release: Immediately Date: August 14, 2017 Contact: Maria R. Hawthorne (818) 244-8080, Ext.1370

PS Business Parks, Inc. Announces Departure of Chief Financial Officer GLENDALE, California-PS Business Parks, Inc. (NYSE:PSB) announced today that Edward A. Stokx, Executive Vice President, Chief Financial Officer and Secretary of the Company, resigned from his position with the Company effective August 31, 2017. "We want to thank Ed for his contributions to our Company during his tenure and wish him the best in his new endeavors," said Maria R. Hawthorne, President and Chief Executive Officer of the Company.

Until the Company appoints a successor to Mr. Stokx, Maria R. Hawthorne, the Company's President and Chief Executive Officer, will act as the Company's principal financial officer and principal accounting officer. The Company has the internal resources to assist Ms. Hawthorne with overseeing the Company's financial and accounting affairs during this period.

Company Information

PS Business Parks, Inc., a member of the S&P Small Cap 600, is a self-advised and self-managed real estate investment trust ("REIT") that acquires, develops, owns and operates commercial properties, primarily multi-tenant flex, office and industrial space. The Company defines "flex" space as buildings that are configured with a combination of office and warehouse space and can be designed to fit a number of uses (including office, assembly, showroom, laboratory, light manufacturing and warehouse space). As of June 30, 2017, the Company wholly owned 28.0 million rentable square feet with approximately 4,900 customers concentrated in six states.

Additional information about PS Business Parks, Inc. is available on the Company's website at psbusinessparks.com.

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PS Business Parks Inc. published this content on 14 August 2017 and is solely responsible for the information contained herein.
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