Holding(s) in Company

Morgan Sindall PLC
13 February 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:            Aquisition of voting rights


3      Full name of person(s) subject to the   Standard Life Investments Ltd
       notification obligation:


4      Full name of shareholders(s):           Vidacos Nominees


5      Date of the transaction and date on     12 February 2008
       which the threshold is crossed or
       reached:


6      Date on which issuer notified:          13 February 2008


7      Threshold(s) that is/are crossed or     12%
       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       5,129,962                                5,129,962


Class/type of      Resulting situation after the triggering transaction
shares If possible
using the ISIN     Number of shares           Number of voting rights     % of voting rights
code                                          Direct        Indirect      Direct        Indirect
                   
GB0008085614       5,190,720                  3,313,674     1,877,046     7.742%        4.385%





B:  Financial instruments

Resulting situation after the triggering transaction

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

Total (A+B)

Number of voting rights                       % of voting rights

5,190,720                                     12.127%


9      Chain of controlled undertakings       Standard Life Investments Ltd
       through which the voting rights and/or
       the financial instruments are
       effectively held, if applicable:




Proxy Voting:

10     Name of the proxy holder:


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:       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     Standard Life Investments Ltd
entities)


Contact address (registered office for legal
entities)


Phone number                                  0131 245 2289

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


B:  Identity of the notifier, if applicable

Full name                                     Alison Kennedy, Corporate Governance Manager -
                                              Engagement


Contact address


Phone number                                  0131 245 2289

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




                      This information is provided by RNS
            The company news service from the London Stock Exchange