Holding(s) in Company

RNS Number:2641Q
Development Secs(Investments)PLC
18 August 2005

                                  SCHEDULE 10

                   NOTIFICATION OF MAJOR INTERESTS IN SHARES


1.     Name of company

       Development Securities Plc

2.     Name of shareholder having a major interest

       Barclays Plc

3.     Please state whether notification indicates that it is in respect of holding of the shareholder named in 2 above
       or in respect of a non-beneficial interest or in the case of an individual holder if it is a holding of that
       person's spouse or children under the age of 18.

       As Above

4.     Name of the registered holder(s) and, if more than one holder, the number of shares held by each of them
       Barclays Capital Nominees Limited: 234,736

       Chase Nominees Limited A/c 16376: 20,515

       JP Morgan (BGI Custody) A/c 16331: 18,071

       JP Morgan (BGI Custody) A/c 16341: 22,134

       JP Morgan (BGI Custody) A/c 16341: 18,394

       JP Morgan (BGI Custody) A/c 16344: 8,991

       JP Morgan (BGI Custody) A/c 16345: 11,179

       JP Morgan (BGI Custody) A/c 16400: 330,997

       JP Morgan (BGI Custody) A/c 16480: 251,074

       JP Morgan (BGI Custody) A/c 16482: 178,567

       JP Morgan (BGI Custody) A/c 18409: 18,858

       R C Greig Nominees Limited A/c RC1: 1,801


5.     Number of shares/amount of stock acquired

       Not stated


6.     Percentage of issued class

       Not stated


7.     Number of shares/amount of stock disposed

       Not stated


8.     Percentage of issued class

       Not stated


9.     Class of security

       Ordinary Shares


10.    Date of transaction

       8 August 2005


11.    Date company informed

       18 August 2005


12.    Total holding following this notification

       1,115,317


13.    Total percentage holding of issued class following this notification

       3.04%


14.    Any additional information


15.    Name of contact and telephone number for queries

       Michael Marx 020-7828-4777


16.    Name and signature of authorised company official responsible for making this notification.

       Michael Marx, Joint Managing Director



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

HOLUWRNRVWRWAAR