Holding(s) in Company

Caledonia Investments PLC
06 May 2004

                                  SCHEDULE 10

                   NOTIFICATION OF MAJOR INTERESTS IN SHARES

All relevant boxes should be completed in block capital letters.


1.  Name of company                                2.  Name of shareholder having a major interest

    Caledonia Investments plc                          BriTel Fund Trustees Limited, a company controlled by
                                                       the Trustees of the BT Pension Scheme


3.  Please state whether notification indicates    4.  Name of the registered holder(s) and, if more than one
    that it is in respect of holding of the            holder, the number of shares held by each of them
    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       BriTel Fund Nominees Limited    142,356
    18                                                 Chase Nominees Limited            5,237,285

    Material interest of person named in 2 above


5.  Number of shares/     6.  Percentage of issued  7.  Number of shares/amount 8.  Percentage of issued class
    amount of stock           class                     of stock disposed
    acquired

    Not advised                                         Not advised


9.  Class of security                               10.  Date of transaction     11.  Date company informed

    Ordinary 5p                                          Not advised                  5 May 2004


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

     5,379,641                                           7.409%


14.  Any additional information                   15.  Name of contact and telephone number for queries

     Hermes Focus Asset Management has a material
     interest in 5,021,468 of the shares referred
     to in 12 above as general partner of various      Mr G P Denison      020 7802 8080
     partnerships managed by Hermes SLP Limited
     and Lens Investors (UK) LLC.

     Hermes Focus Asset Management Limited and
     Hermes SLP Limited are both subsidiaries of
     Hermes Pensions Management Limited which is
     ultimately owned by BriTel Fund Trustee
     Limited, a company controlled by the
     trustees of the BT Pension Scheme.


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

     Mr G P Denison, Company Secretary


Date of notification __6 May 2004




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