Current Report Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported) January 23, 2004


(Exact name of registrant as specified in its charter)

(State or Other Jurisdiction
       of Incorporation)
(Commission File Number)
   (I.R.S. Employer
Identification Number)

701 Western Avenue, Glendale, California 91201-2397

(Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code: (818) 244-8080


(Former name or former address, if changed since last report)

Item 7. Financial Statements and Exhibits

(c) Exhibits

99.1 Press release dated January 23, 2004.

Item 9. Regulation FD Disclosure

  On January 22, 2004, the Company issued a press release announcing that it will present at the 2004 Credit Suisse First Boston REIT Conference. The Company is attaching the press release as Exhibit 99.1 to this Current Report on Form 8-K. The information included pursuant to this Item 9 (including the exhibits) shall not be deemed to be incorporated by reference into any filing made by the Company pursuant to the Securities Act of 1933, other than to the extent that such filing incorporates by reference any or all of such information by express reference thereto.


Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.


Date: January 23, 2004
By: /s/ Edward A. Stokx
Edward A. Stokx
Chief Financial Officer

News Release

PS Business Parks, Inc.
701 Western Avenue
Glendale, CA 91201-2349

For Release:     Immediately
Date:                 January 23, 2004
Contact:           Mr. Edward A. Stokx
                          (818)244-8080, Ext. 649

PS Business Parks, Inc. to Present at Credit Suisse First Boston REIT Conference

GLENDALE, California — PS Business Parks, Inc. (AMEX: PSB). President and Chief Executive Officer, Joseph D. Russell, Jr., and Chief Financial Officer, Edward A. Stokx, are scheduled to make a presentation at the Credit Suisse First Boston 2004 REIT Conference at 11 Madison Avenue, New York City, New York on Wednesday, January 28, 2004.

The Company's presentation is scheduled to begin at 3:00 P.M. Eastern Time. To access the presentation, go to the Investor Relations page of the Company's website at

Company Information

PSB is a self-advised and self-managed equity real estate investment trust specializing in the ownership, management, acquisition, development and redevelopment of business parks containing principally office “flex” 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 an almost limitless number of uses (including office, assembly, showroom, laboratory, light manufacturing and warehouse under one roof). As of December 31, 2003, PSB owns approximately 18.4 million net rentable square feet with approximately 3,700 customers located in 8 states, concentrated primarily in California (4,967,000 sq. ft.), Florida (3,350,000 sq. ft.), Texas (2,983,000 sq. ft.), Oregon (1,973,000 sq. ft.),Virginia (2,621,000 sq. ft.) and Maryland (1,769,000 sq. ft.).

Additional information about PS Business Parks, Inc. is available on the Internet. The Company's web site is