Equity Office Teleconference Alert; Investor Conference Call: Third Quarter 2006 Earnings

  
    
  
  
    
      Equity Office Properties Trust (NYSE: EOP) will be hosting a conference 
      call on Tuesday, October 31, 2006, at 10:00 AM Central (11:00 AM 
      Eastern, 9:00 AM Mountain, 8:00 AM Pacific) to discuss the company’s 
      third quarter 2006 earnings. EOP expects to issue a press release 
      announcing its third quarter results before the market opens on October 
      31, 2006.
    
    
      The conference call telephone number is 888-283-0069. 
      Participants should dial in 15 minutes before the scheduled start 
      of the call. The pass code to access the call is “EOP.” 
      Participants calling from outside of North America should dial 
      210-795-9226.
    
    
      A replay of the call will be available until 11:59 PM Central on 
      November 7, 2006, by calling 800-756-0715 (no pass code necessary). If 
      calling from outside North America, please call 203-369-3427.
    
    
      A live webcast of the conference call will be available in listen-only 
      mode at www.equityoffice.com 
      and www.fulldisclosure.com. 
      The archived webcast will be available for 30 days after the call. 
      Windows Media Player software is necessary to listen to the webcast, and 
      may be downloaded free-of-charge at the websites listed above. The 
      webcast may also be accessed through other financial Web sites. Please 
      check your preferred finance channel for availability.
    
    
      Equity Office Properties Trust (NYSE: EOP), operating through its 
      various subsidiaries and affiliates, is the nation's largest publicly 
      held office building owner and manager with a total office portfolio 
      consisting of whole or partial interest in 588 buildings comprising 
      108.8 million square feet in 16 states and the District of Columbia. 
      Equity Office has an ownership presence in 23 Metropolitan Statistical 
      Areas (MSAs) and in 99 submarkets, enabling it to provide a wide range 
      of office solutions for local, regional and national customers. For more 
      company information, visit the Equity Office website at http://www.equityoffice.com.
    
  
Equity Office Properties Trust (NYSE: EOP) will be hosting a
conference call on Tuesday, October 31, 2006, at 10:00 AM Central
(11:00 AM Eastern, 9:00 AM Mountain, 8:00 AM Pacific) to discuss the
company's third quarter 2006 earnings. EOP expects to issue a press
release announcing its third quarter results before the market opens
on October 31, 2006.

   The conference call telephone number is 888-283-0069. Participants
should dial in 15 minutes before the scheduled start of the call. The
pass code to access the call is "EOP." Participants calling from
outside of North America should dial 210-795-9226.

   A replay of the call will be available until 11:59 PM Central on
November 7, 2006, by calling 800-756-0715 (no pass code necessary). If
calling from outside North America, please call 203-369-3427.

   A live webcast of the conference call will be available in
listen-only mode at www.equityoffice.com and www.fulldisclosure.com.
The archived webcast will be available for 30 days after the call.
Windows Media Player software is necessary to listen to the webcast,
and may be downloaded free-of-charge at the websites listed above. The
webcast may also be accessed through other financial Web sites. Please
check your preferred finance channel for availability.

   Equity Office Properties Trust (NYSE: EOP), operating through its
various subsidiaries and affiliates, is the nation's largest publicly
held office building owner and manager with a total office portfolio
consisting of whole or partial interest in 588 buildings comprising
108.8 million square feet in 16 states and the District of Columbia.
Equity Office has an ownership presence in 23 Metropolitan Statistical
Areas (MSAs) and in 99 submarkets, enabling it to provide a wide range
of office solutions for local, regional and national customers. For
more company information, visit the Equity Office website at
http://www.equityoffice.com.