Holding(s) in Company

CRH PLC
18 October 2007


Standard Form TR-1: Notifications of Major Interests in Shares


1.   Identity of the issuer or the underlying issuer of existing shares to which
     voting rights are attached:

     CRH plc


2.   Reason for the notification (please place an X inside the appropriate
     bracket/s):
               
     ( X   )  An acquisition or disposal of voting rights

     (     )  An acquisition or disposal of financial instruments which may 
              result in the acquisition of shares already issued to which voting 
              rights are attached

     (     )  An event changing the breakdown of voting rights

     (     )  Other (please specify)


3.   Full name of person(s) subject to notification obligation:

     The Capital Group Companies, Inc.


4.  Full name of shareholder(s) (if different from 3) :

     -


5.  Date of transaction (and date on which the threshold is crossed or reached):

     16th October 2007


6.   Date on which issuer notified:

     18th October 2007


7.   Threshold(s) that is/are crossed or reached:

     5%


8.   Notified Details:

A:   Voting rights attached to shares


Class/type of shares (if possible      Situation previous to the triggering 
use ISIN CODE)                         transaction

                                  Number of shares       Number of voting rights

Ordinary Shares                   26,988,253             26,988,253
(IE0001827041)


                                                 Resulting situation after the triggering transaction
Class/type of shares (if      Number of shares                  Number of voting rights       % of voting rights
possible use ISIN CODE)
                                                                Direct       Indirect         Direct        Indirect

Ordinary Shares               27,522,453                                     27,522,453                     5.0376%
(IE0001827041)
     
     
B:   Financial Instruments

Resulting situation after the triggering transaction


Type of         Expiration date      Exercise/conversion       Number of voting rights     % of voting rights
financial                            period/date               that may be acquired (if
instrument                                                     the instrument exercised/
                                                               converted)
N/A


Total (A+B) (where applicable in accordance with Number of voting rights  % of voting rights
national law)
27,522,453                                       27,522,453               5.0376%


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

     N/A


10.  In case of proxy voting: (name of the proxy holder) will cease to hold
     (number) voting rights as of (date):

     N/A


11.  Additional information:

     Done at Los Angeles, California on 17 October 2007


12.  Contact name:

     Neil Colgan
     Assistant Company Secretary


13.  Contact telephone number:

     [phone]



APPENDIX

As of 16 October 2007

CRH plc

                                                         Number of    Percent of
                                                            Shares   Outstanding
                    
                                                        27,522,453        5.038%

The Capital Group Companies, Inc. ('CG') holdings:

Holdings by CG Management Companies and Funds:

Capital Guardian Trust Company                          11,715,583        2.144%
Capital International Limited                            3,765,414        0.689%
Capital International S.A.                               1,210,797        0.222%
Capital International, Inc.                              2,396,310        0.439%
Capital Research and Management Company                  8,434,349        1.544%



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