Holding(s) in Company

Morgan Sindall PLC
09 January 2008

TR1: NOTIFICATION OF MAJOR INTERESTS IN SHARES


1     Identity of the issuer or the        Morgan Sindall plc
      underlying issuer of existing shares
      to which voting rights are attached:
2     Reason for the notification:         An acquisition or disposal of voting rights
3     Full name of person(s) subject to
      the notification obligation:         Aviva plc & its subsidiaries
4     Full name of shareholders(s):        Registered holder:



                                           BNY Norwich Union Nominees Limited                               796,657*

                                           Chase GA Group Nominees Limited                                  2,316,606*

                                           Chase Nominees Limited                                           206,528*
                                                                                                            
                                           CUIM Nominee Limited                                             629,901*

                                           * denotes direct interest

                                                                                                            
                                           Chase Nominees Limited                                           103,723
                                                                                                            
                                           CUIM Nominee Limited                                             27,339
                                                                                                            
                                           Vidacos Nominees Limited                                         958,627

                                           Delta Lloyd Institutionale Sustainable Futures Fund              11,319

5     Date of the transaction and date on
      which the threshold is crossed or
      reached:                             8 January 2008
6     Date on which issuer notified:       9 January 2008
7     Threshold(s) that is/are crossed or  8% to 9% change at direct interest level
      reached:
8     Notified details:
A:  Voting rights attached to shares


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


GB0008085614      4,781,161                             4,781,161
Class/type of     Resulting situation after the triggering transaction
shares If
possible using
the ISIN code     Number of shares         Number of voting rights   % of voting rights
                  Direct                   Direct       Indirect     Direct       Indirect


GB0008085614      3,949,692                3,949,692    1,101,008    9.23%        2.57%
B:  Financial instruments


Resulting situation after the triggering transaction


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


Total (A+B)


Number of voting rights                    % of voting rights


5,050,700                                  11.80%


9     Chain of controlled undertakings     See section 4
      through which the voting rights and/
      or the financial instruments are
      effectively held, if applicable:
Proxy Voting:


10    Name of the proxy holder:            See section 4
11    Number of voting rights proxy holder
      will cease to hold:
12    Date on which proxy holder will
      cease to hold voting rights:
13    Additional information:
14    Contact for further information:     Mary 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  Aviva plc and its subsidiaries
entities)
Contact address (registered office for
legal entities)
Phone number                               01603 684420
Other useful information (at least legal   Neil Whittaker
representative for legal persons)
B:  Identity of the notifier, if applicable


Full name                                  Global Reporting Unit, Aviva Plc
Contact address
Phone number
Other useful information (eg functional
relationship with the person or legal
entity subject to the notification
obligation)




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            The company news service from the London Stock Exchange