PS Business Parks : GLENDALE, California — PS Business Parks, Inc. to Release Fourth Quarter 2016 Earnings and Host Quarterly Conference Call

News Release

PS Business Parks, Inc. 701 Western Avenue

Glendale, CA 91201-2349 psbusinessparks.com

For Release: Immediately Date: January 30, 2017 Contact: Edward A. Stokx

[phone], Ext. 1649

PS Business Parks, Inc. to Release Fourth Quarter 2016 Earnings and Host Quarterly Conference Call GLENDALE, California-PS Business Parks, Inc. (NYSE:PSB) announced today that it intends to release its fourth quarter 2016 earnings after the close of business on Tuesday, February 21, 2017.

A conference call is scheduled for Wednesday, February 22, 2017, at 10:00 a.m. (PST) to discuss fourth quarter results. The toll free number is [phone]; the conference ID is 60639684. The call will also be available via a live webcast on the Company's website. A replay of the conference call will be available through March 1, 2017 at [phone], as well as via webcast on the Company's website.

Company Information

PS Business Parks, Inc., a member of the S&P SmallCap 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 December 31, 2016, the Company wholly owned 28.1 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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