Appointment of new Chief Exec

Costain Group PLC
25 April 2005

Costain Group PLC

('Costain' or the 'Company')



APPOINTMENT OF NEW CHIEF EXECUTIVE

The Board of Costain is pleased to announce that Andrew Wyllie, currently
Managing Director of Taylor Woodrow Construction Limited, will succeed Stuart
Doughty as Chief Executive of the Company at a date to be finalised, but
expected to be not later than September 2005.



Andrew Wyllie joined Taylor Woodrow in 1984 after graduating from the University
of Strathclyde, Glasgow with a BSc (Hons) degree in Civil Engineering.  He
worked for several years on a variety of major contracts in Saudi Arabia, Ghana,
the Falklands and Malaysia, as well as projects in the United Kingdom.



After becoming a Chartered Engineer (MICE) Andrew studied full time between 1991
and 1993 for his MBA degree at the London Business School.  In 1999, following a
period as Business Development Executive for Taylor Woodrow plc, Andrew was
appointed a Director of Taylor Woodrow Construction Limited and in 2001 became
Managing Director of the business which today has a turnover of some £500m.  He
is also a member of the Taylor Woodrow plc Executive Committee.



Commenting on the appointment, David Jefferies, the Chairman of Costain said:



'It is excellent news that Andrew Wyllie will be joining Costain.   When we
commenced the search for Stuart's successor, Andrew was immediately identified
as a leading candidate for the job.  His experience in the industry and robust
management approach make Andrew ideally suited to taking Costain into the next
phase of its development.



Stuart Doughty has led Costain through a rapid recovery and, when he steps down,
he can be proud of what he has achieved.  We have been extremely fortunate to
have had him at the helm and, on behalf of everyone at Costain, thank him for
his major contribution over the last four years.'



Stuart Doughty commented:



The Costain business has once again become a major name in the UK and
international arenas.  It has been a privilege to have been a part of the
Costain story and to have worked with some wonderful colleagues who, I am
absolutely confident, will continue to build on the Company's success under
Andrew's leadership.'



                                                                   25 April 2005



Enquiries:

Costain Group PLC                                            Tel: [phone]

David Jefferies, Chairman
Graham Read, Public Relations


College Hill                                                 Tel: [phone]

Mark Garraway
Matthew Gregorowski




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