Holding(s) in Company

Morgan Sindall PLC
06 August 2007

TR1: NOTIFICATION OF MAJOR INTERESTS IN SHARES


1        Identity of the issuer or the underlying      Morgan Sindall plc
         issuer of existing shares to which voting
         rights are attached:

2        Reason for the notification:                  Acquisition of voting rights

3        Full name of person(s) subject to the         JPMorgan Chase & Co
         notification obligation:

4        Full name of shareholders(s):                 JPMorgan Asset Management (UK) Limited

5        Date of the transaction and date on which the
         threshold is crossed or reached:
                                                       2 August 2007

6        Date on which issuer notified:                6 August 2007

7        Threshold(s) that is/are crossed or reached:

                                                       5%
8        Notified details:

A:  Voting rights attached to shares

Class/type of shares   Situation previous to the triggering transaction
If possible using the
ISIN code              Number of shares                                Number of voting rights
                       Below 5%                                        Below 5%

GB0008085614

Class/type of shares   Resulting situation after the triggering transaction
If possible using the
ISIN code              Number of shares                Number of voting rights          % of voting rights
                                                       Direct          Indirect         Direct          Indirect
                       2,242,702                                       2,242,702                        5.26%

GB0008085614
B:  Financial instruments

Resulting situation after the triggering transaction

Type of financial         Expiration     Exercise/Conversion           Number of voting rights that  % of voting rights
instrument                date           Period/Date                   may be acquired if the
                                                                       instrument is exercised/
                                                                       converted

N/A
Total (A+B)

Number of voting rights                                % of voting rights

2,242,702
                                                       5.26%

9        Chain of controlled undertakings through      Total disclosable holding for JPMorgan Chase & Co: 
         which the voting rights and/or the financial  2,242,702 (5.26%)
         instruments are effectively held, if          JPMorgan Asset Management (UK) Limited: 2,242,702 (5.26%)
         applicable:                                   

Proxy Voting:

10       Name of the proxy holder:                     N/A

11       Number of voting rights proxy holder will     N/A
         cease to hold:

12       Date on which proxy holder will cease to hold N/A
         voting rights:

13       Additional information:                       Please note the group has other holdings which are covered by
                                                       exemptions

14       Contact for further information:              I M Nettleship, Company Secretary

15       Contact telephone number:                     020 7307 9218

Annex to Notification of Major Interests in Shares

A:  Identity of the person or legal entity subject to the notification obligation

Full name (including legal form for legal entities)    Tracey Young

Contact address (registered office for legal entities) JPMorgan Chase
                                                       125 London Wall, London, EC2Y 5AJ

Phone number                                           020 7325 4513

Other useful information (at least legal
representative for legal persons)

B:  Identity of the notifier, if applicable

Full name                                              Tracey Young

Contact address                                        JPMorgan Chase
                                                       125 London Wall, London, EC2Y 5AJ

Phone number                                           020 7325 4513

Other useful information (eg functional relationship
with the person or legal entity subject to the
notification obligation)




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