alstria office REIT-AG Agrees on the Acquisition of a German Office Real Estate Portfolio

alstria office REIT-AG (symbol: AOX, ISIN: DE000A0LD2U1):

   alstria office REIT-AG (alstria office), an internally managed
Real Estate Investment Trust (REIT) solely focused on acquiring,
owning and managing office real estate in Germany, announces the
signature of a purchase agreement with a leading German corporation
for the acquisition of a portfolio of 13 properties essentially used
as office properties. Both seller and alstria agreed not to disclose
the name of the seller.

   The assets will be acquired for an All-In cost of approximately
EUR 111.3 m (EUR 1,500 per sqm) and will generate a passing rent of
approximately EUR 7.7 m per annum (average of EUR 9 per sqm per
month). The closing of the transaction is expected to occur in the
course of 2008, and is still subject to cartel office clearance. The
transaction will be financed through the existing credit facility.

   The properties are located all across Germany. The total lettable
area is of approximately 74,500 sqm. The seller remains as a tenant in
the properties and will rent approximately 66 % of the space on five
to ten year leases; approximately 20.5 % is leased to third party
tenants and the remaining 13.5 % is vacant allowing additional upside
potential through active management.

   'This transaction demonstrates the ability of alstria to offer
attractive terms to German corporations willing to unlock the capital
tight in their office real estate. Exit tax benefit has again allowed
both parties to improve the economics demonstrating the unique
competitive advantage of REITs', says Olivier Elamine, CEO of alstria.

   'The acquisition of this portfolio presents a positive carry
between real estate initial yields and the marginal cost of debt
highlighting the ability of alstria to execute accretive deals' added
Alexander Dexne, CFO of alstria, 'it will have a positive impact on
our FFO and thus on our dividend for 2008.'

   alstria was advised by Freshfields Bruckhaus Deringer.

   About the company alstria office REIT-AG is an internally managed
Real Estate Investment Trust (REIT) solely focused on acquiring,
owning and managing office real estate in Germany. alstria was founded
in January 2006, its headquarters are based in Hamburg.

   alstria office REIT-AG owns a diversified portfolio of properties
across attractive German office real estate markets. Its current
portfolio comprises 70 properties with an aggregate lettable space of
approximately 770,000 sqm and is valued at approximately Euro 1.6
billion. alstria intends to expand its portfolio significantly in the
upcoming years as part of a sustainable growth strategy based on
selective investments and active asset and portfolio management as
well as on establishing and maintaining good relationships with its
key customers and decision makers.

   For further information, please visit: www.alstria.com

   This release constitutes neither an offer to sell nor a
solicitation of an offer to buy any securities. The securities have
already been sold.

   As far as this press release contains forward-looking statements
with respect to the business, financial condition and results of
operations of alstria office REIT-AG (alstria), these statements are
based on current expectations or beliefs of alstria's management.
These forward-looking statements are subject to a number of risks and
uncertainties that could cause actual results or performance of the
Company to differ materially from those reflected in such
forward-looking statements. Apart from other factors not mentioned
here, differences could occur as a result of changes in the overall
economic situation and the competitive environment - especially in the
core business segments and markets of alstria. Also, the development
of the financial markets and changes in national as well as
international provisions particularly in the field of tax legislation
and financial reporting standards could have an effect. Terrorist
attacks and their consequences could increase the likelihood and the
extent of differences.

   alstria undertakes no obligation to publicly release any revisions
or updates to these forward-looking statements to reflect events or
circumstances after the date hereof or to reflect the occurrence of
unanticipated events.

   Contact Dr. Charlotte Brigitte Loos Manager Public Relations &
Investor Relations Tel.: +49 - 40 - 226 341 329 Fax: +49 - 40 - 226
341 310 Email: [e-mail]

-0-
*T
Language: English
Issuer: alstria office REIT-AG Fuhlentwiete 12 20355 Hamburg
 Deutschland
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Internet: www.alstria.de
ISIN: DE000A0LD2U1
WKN: A0LD2U
Indices: SDAX, EPRA, German REIT Index
Listed: Regulierter Markt in Frankfurt (Prime Standard); Freiverkehr
 in Berlin, Hamburg, Munchen, Stuttgart
*T
  
    
  
  
    
      alstria office REIT-AG (symbol: AOX, ISIN: DE000A0LD2U1):
    
    
      alstria office REIT-AG (alstria office), an internally managed Real 
      Estate Investment Trust (REIT) solely focused on acquiring, owning and 
      managing office real estate in Germany, announces the signature of a 
      purchase agreement with a leading German corporation for the acquisition 
      of a portfolio of 13 properties essentially used as office properties. 
      Both seller and alstria agreed not to disclose the name of the seller.
    
    
      The assets will be acquired for an All-In cost of approximately EUR 
      111.3 m (EUR 1,500 per sqm) and will generate a passing rent of 
      approximately EUR 7.7 m per annum (average of EUR 9 per sqm per month). 
      The closing of the transaction is expected to occur in the course of 
      2008, and is still subject to cartel office clearance. The transaction 
      will be financed through the existing credit facility.
    
    
      The properties are located all across Germany. The total lettable area 
      is of approximately 74,500 sqm. The seller remains as a tenant in the 
      properties and will rent approximately 66 % of the space on five to ten 
      year leases; approximately 20.5 % is leased to third party tenants and 
      the remaining 13.5 % is vacant allowing additional upside potential 
      through active management.
    
    
      'This transaction demonstrates the ability of alstria to offer 
      attractive terms to German corporations willing to unlock the capital 
      tight in their office real estate. Exit tax benefit has again allowed 
      both parties to improve the economics demonstrating the unique 
      competitive advantage of REITs', says Olivier Elamine, CEO of alstria.
    
    
      'The acquisition of this portfolio presents a positive carry between 
      real estate initial yields and the marginal cost of debt highlighting 
      the ability of alstria to execute accretive deals' added Alexander 
      Dexne, CFO of alstria, 'it will have a positive impact on our FFO and 
      thus on our dividend for 2008.'
    
    
      alstria was advised by Freshfields Bruckhaus Deringer.
    
    
      About the company alstria office REIT-AG is an internally managed Real 
      Estate Investment Trust (REIT) solely focused on acquiring, owning and 
      managing office real estate in Germany. alstria was founded in January 
      2006, its headquarters are based in Hamburg.
    
    
      alstria office REIT-AG owns a diversified portfolio of properties across 
      attractive German office real estate markets. Its current portfolio 
      comprises 70 properties with an aggregate lettable space of 
      approximately 770,000 sqm and is valued at approximately Euro 1.6 
      billion. alstria intends to expand its portfolio significantly in the 
      upcoming years as part of a sustainable growth strategy based on 
      selective investments and active asset and portfolio management as well 
      as on establishing and maintaining good relationships with its key 
      customers and decision makers.
    
    
      For further information, please visit: www.alstria.com
    
    
      This release constitutes neither an offer to sell nor a solicitation of 
      an offer to buy any securities. The securities have already been sold.
    
    
      As far as this press release contains forward-looking statements with 
      respect to the business, financial condition and results of operations 
      of alstria office REIT-AG (alstria), these statements are based on 
      current expectations or beliefs of alstria's management. These 
      forward-looking statements are subject to a number of risks and 
      uncertainties that could cause actual results or performance of the 
      Company to differ materially from those reflected in such 
      forward-looking statements. Apart from other factors not mentioned here, 
      differences could occur as a result of changes in the overall economic 
      situation and the competitive environment - especially in the core 
      business segments and markets of alstria. Also, the development of the 
      financial markets and changes in national as well as international 
      provisions particularly in the field of tax legislation and financial 
      reporting standards could have an effect. Terrorist attacks and their 
      consequences could increase the likelihood and the extent of differences.
    
    
      alstria undertakes no obligation to publicly release any revisions or 
      updates to these forward-looking statements to reflect events or 
      circumstances after the date hereof or to reflect the occurrence of 
      unanticipated events.
    
    
      Contact Dr. Charlotte Brigitte Loos Manager Public Relations & Investor 
      Relations Tel.: +49 - 40 - 226 341 329 Fax: +49 - 40 - 226 341 310 
      Email: [e-mail]
    
    
      
        
          Language: English
        
      
      
        
          Issuer: alstria office REIT-AG Fuhlentwiete 12 20355 Hamburg 
          Deutschland
        
      
      
        
          Phone: [phone]
        
      
      
        
          Fax: [phone]
        
      
      
        
          
            E-mail: [e-mail]
          
        
      
      
        
          
            Internet: www.alstria.de
          
        
      
      
        
          ISIN: DE000A0LD2U1
        
      
      
        
          WKN: A0LD2U
        
      
      
        
          Indices: SDAX, EPRA, German REIT Index
        
      
      
        
          Listed: Regulierter Markt in Frankfurt (Prime Standard); Freiverkehr 
          in Berlin, Hamburg, Munchen, Stuttgart