Holding(s) in Company

Morgan Sindall PLC
21 February 2006


Morgan Sindall plc
21 February 2006

Notification of major Interests in Shares

1.         Name of listed company:

           Morgan Sindall plc

2.         Name of shareholder having a major interest:

           Aviva plc and its subsidiaries

3.         Please state whether notification indicates that it is regarding the
holding of the shareholder named in 2 above or in respect of a non-beneficial
interest:

           As in paragraph 2 above

4.         Name of registered holder(s) and, if more than one holder, the number
of shares held by each of them

Morley Fund Management Ltd:
BNY Norwich Union Nominees Limited         305,486*
Chase GA Group Nominees Limited          1,012,828*
Chase Nominees Limited                      77,500*
CUIM Nominee Limited                       284,725*

* denotes beneficial interest

5.         Number of shares acquired:

           n/a

6.         Percentage of issued class:

           n/a

7.         Number of shares disposed:

           12,300

8.         Percentage of issued class:

           0.03%

9.         Class of Security:

           Ordinary shares

10.        Date of transaction:

           17 February 2006

11.        Date company informed:

           20 February 2006

12.        Total holding following this notification:

            1,680,539*

            * beneficial interest only

13.        Total percentage holding of issued class following this notification:

           3.97%

14.        Name of contact and telephone number for queries:

           Mary Nettleship - 020 7307 9218

15.        Name of company official responsible for making this notification:

           Mary Nettleship, Company Secretary

16.        Date of notification:

           21 February 2006



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