Over-allotment Option

Dawnay, Day Sirius
09 May 2007



 THIS ANNOUNCEMENT AND THE INFORMATION CONTAINED HEREIN IS NOT FOR PUBLICATION,
DISTRIBUTION OR RELEASE IN, OR INTO, DIRECTLY OR INDIRECTLY, THE UNITED STATES,
                          CANADA, AUSTRALIA OR JAPAN.




                           DAWNAY, DAY SIRIUS LIMITED
                                        
               ANNOUNCEMENT OF EXERCISE OF OVER-ALLOTMENT OPTION


Dawnay, Day Sirius Limited (the 'Company'), today announces that, in connection
with the initial public offering of the Company completed on 4 May 2007 (the
'Offer'), JPMorgan Cazenove Limited, as stabilising manager, has today given
notice to exercise the over-allotment option in respect of 27,800,000 ordinary
shares of the Company. The €27.1 million net proceeds arising from the exercise
of the over-allotment arrangements will be received by the Company.

Following the issue of the ordinary shares pursuant to the exercise of the
over-allotment option, there will be 327.8 million ordinary shares of the
Company in issue, of which 27.8 million will be held by Staracre Limited (a
company owned as to 50% by Marba Investments and as to 50% by Frank and Kevin
Oppenheim).

Application has been made for the 27,800,000 ordinary shares to be issued
pursuant to the over-allotment option to be admitted to trading on AIM.


Further Enquiries

Sirius Facilities Group     Kevin Oppenheim                 020 7861 0550
www.dawnaydaysirius.com     Alistair Marks


JPMorgan Cazenove           Robert Fowlds                   020 7588 2828
                            Bronson Albery


Cardew Group                Tim Robertson                   020 7930 0777 
                                                            M: 07900 927 650

                            Shan Shan Willenbrock
                            Catherine Maitland


These materials are not for publication or distribution, directly or indirectly,
in, into or from the United States of America, Canada, Australia or Japan. These
materials do not constitute or form part of any offer or invitation to sell or
issue or any solicitation of any offer to purchase or subscribe for any
securities in any jurisdiction, nor shall it (or any part of it) or the fact of
its distribution form the basis of, or be relied upon in connection with, or act
as any inducement to enter into, any contract or commitment therefor.

The shares mentioned herein have not been, and will not be, registered under the
US Securities Act of 1933 (the 'Securities Act'), and may not be offered or sold
in the United States except pursuant to an exemption from the registration
requirements of the Securities Act. No public offer of the shares is being made
in the United States and the information contained herein does not constitute an
offering or securities for sale in the United States, Canada, Australia or
Japan. No money, securities or other consideration is being solicited and, if
sent in response to the information contained herein, will not be accepted.





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