Adler Real Estate AG / Joint Venture/MiscellaneousRelease of an Ad hoc announcement according to § 15 WpHG, transmitted byDGAP - a company of EquityStory AG.The issuer is solely responsible for the content of this announcement.----------------------------------------------------------------------+++ ADLER Real Estate AG and affiliate of AIG Global Real Estate jointlyacquire a second German office portfolio +++Hamburg, August 9, 2007. ADLER Real Estate AG (ISIN: DE DE0005008007) andAIG Global Real Estate, part of American International Group Inc., havejointly acquired a portfolio of 12 high-quality office properties locatedin Berlin, Frankfurt, Munich and other cities throughout Germany with totalnet rentable area of 54,000 sqm.This transaction follows ADLER’s and AIG Global Real Estate’s recent jointacquisition of four office properties in greater Munich. Investment in thislatest acquisition, the third by ADLER and AIG Global Real Estate, will bemade by a joint venture between AIG Global Real Estate and ADLER. Latham &Watkins accompanied the transaction on buyer side.ADLER Real Estate Service GmbH has been engaged for this portfolio as AssetManager.The Management BoardContacts (see next page): Company Contact:ADLER Real Estate AGNeuer Wall 77D-20354 Hamburgwww.adler-ag.de Phone: +49 (40) 29 8130-0Fax:     +49 (40) 29 8130-99info@adler-ag.deAgency Contact:Gesellschaft für Effekteninformation mbHBeethovenstraße 6060325 Frankfurt am Main, Germanywww.gfei.dePhone: +49 (69) 74 30 37 00Fax:     +49 (69) 74 30 37 06ir-adler@gfei.deAbout ADLER Real Estate AG:ADLER Real Estate AG is active in commercial real estate development,portfolio investment and asset management. The company’s core competence isin the realization and marketing of high quality national and internationalreal estate projects. ADLER Real Estate AG’s history dates back to therenowned Adlerwerke in Frankfurt which were founded in the 19th century.Today, the majority shareholder of ADLER Real Estate AG is the U.S. CompanyMezzanine IX Investors L.P.DGAP 09.08.2007 ---------------------------------------------------------------------- Language:     EnglishIssuer:       Adler Real Estate AG              Neuer Wall 77              20354 Hamburg              DeutschlandPhone:        +49 (0)40 - 29 8130-0Fax:          +49 (0)40 - 29 8130-35E-mail:       info@adler-ag.deInternet:     www.adler-ag.deISIN:         DE0005008007WKN:          500800Indices:      Listed:       Amtlicher Markt in Berlin, Frankfurt (General Standard),              Düsseldorf, München; Freiverkehr in Hamburg End of News                                     DGAP News-Service ---------------------------------------------------------------------------