Company:  PS BUSINESS PARKS INC/CA (PSB)
Form Type:  424B5
Filing Date:  5/2/2012 
CIK:  0000866368 
Address:  701 WESTERN AVE
SUITE 200
 
City, State, Zip:  GLENDALE, California 91201-2397 
Telephone:  (818) 244-8080 
Fiscal Year:  12/31 
Last Trade
Last Trade: 
$85.72  
Change: 
0.16 (0.19%)  
Trade Time: 
04:01 PM EST  
Market Cap: 
$2.09B
Description of Business
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  FORM 424B5
    Subject to Completion dated May , 2012
    TABLE OF CONTENTS
    WHERE YOU CAN FIND MORE INFORMATION
    PROSPECTUS SUPPLEMENT SUMMARY
    The Offering
    RISK FACTORS
    USE OF PROCEEDS
    DESCRIPTION OF PREFERRED STOCK AND DEPOSITARY SHARES
    ADDITIONAL MATERIAL U.S. FEDERAL INCOME TAX CONSIDERATIONS
    UNDERWRITING
    LEGAL MATTERS
    EXPERTS
      INCOME STATEMENT
    RISK FACTORS
    FORWARD-LOOKING STATEMENTS
    USE OF PROCEEDS
    RATIO OF EARNINGS TO FIXED CHARGES
    DESCRIPTION OF COMMON STOCK
    DESCRIPTION OF PREFERRED STOCK
    DESCRIPTION OF EQUITY STOCK
    DESCRIPTION OF DEPOSITARY SHARES
    DESCRIPTION OF WARRANTS
    DESCRIPTION OF DEBT SECURITIES
    DESCRIPTION OF UNITS
    SELLING SECURITYHOLDERS
    Taxation of PS Business Parks as a REIT
    PLAN OF DISTRIBUTION
    Selling Securityholders