Holding(s) in Company

Gleeson(M J)Group PLC
17 December 2004


MJ GLEESON GROUP PLC ('Gleesons' or 'the Company')

HOLDING IN COMPANY


17 December 2004

The Company was informed by a letter dated 17 December 2004 that Schroder
Investment Management Limited, have an interest in 7,211,217 ordinary shares of
2p each ('Shares'), or 14.02 per cent of the issued ordinary share capital,
which are held in portfolios managed on a discretionary basis for clients under
investment management agreements.

Included in this figure are: -
     
(i)  4,211,990 Shares held in (a) unit trust(s) operated and managed by an 
     affiliated company, Schroder Unit Trusts Limited (SUTL), and registered or 
     to be registered in the name of Chase Nominees Limited.

(ii) 2,999,227 Shares neither registered or to be registered in the name of 
     Schroder Nominees.  The registration details are shown on the schedule 
     below.

This notification is made: -

(a)  in respect of Schroder Investment Management Limited's interest as 
     investment managers;

(b)  on behalf of SUTL in relation to the interests they are treated as having 
     respectively under the Companies Act 1985 (the Act); and

(c)  on behalf of Schroders plc, as the holding company of both Schroder 
     Investment Management Limited and SUTL

The beneficial owners of the shares registered in the name of Schroder Nominees
are:

REGISTRATION                                       AMOUNT

British Coal Staff Superannuation a/c: P        1,045,575
Chase Nominees Limited                            104,727
Mineworkers' Pension Scheme a/c: R              1,173,925
Nortrust Nominees Limited                         675,000

                                                2,999,227



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