Blocklisting Interim Review

CRH PLC
02 October 2006

                        BLOCK LISTING SIX MONTHLY RETURN



INFORMATION PROVIDED ON THIS FORM MUST BE TYPED OR PRINTED ELECTRONICALLY.



To: The Irish Stock Exchange/The FSA



Date: 2nd October 2006



Name of applicant:       CRH plc



Name of scheme:          1990 Share Option Scheme (95/4438d)



Period of return: From:  01.04.06   To:  30.09.06



Balance under scheme from previous return:          9,643,229



The amount by which the block scheme has             -
been increased, if the scheme has been
increased since the date of the last return:



Number of securities issued/allotted under
scheme during period:                                 550,703



Balance under scheme not yet issued/allotted          9,092,526
at end of period:



Number and class of securities originally              11,000,000 Ordinary
                                                       Shares of €0.32 each
listed and the date of admission                       on 4th October 1995
                                                       and 15,500,000 Ordinary 
                                                       Shares of €0.32 each on 
                                                       26th March 2002



Total number of securities in issue at the end
of the period                                          540,897,751



Name of contact:             Angela Malone

Address of contact:          CRH plc, 42 Fitzwilliam Square, Dublin 2.

Telephone number of contact: 00 353 1 6344340





SIGNED BY ______________________________________________

Angela Malone

Company Secretary







If you knowingly or recklessly give false or misleading information you may be
liable to prosecution.



                      BLOCK LISTING SIX MONTHLY RETURN



INFORMATION PROVIDED ON THIS FORM MUST BE TYPED OR PRINTED ELECTRONICALLY.



To: The Irish Stock Exchange/The FSA



Date: 2nd October 2006



Name of applicant:       CRH plc



Name of scheme:          1990 U.K. Share Option Scheme (95/4438e)



Period of return: From:   01.04.06   To: 30.09.06



Balance under scheme from previous return:          169,579



The amount by which the block scheme has           -
been increased, if the scheme has been
increased since the date of the last return:



Number of securities issued/allotted under
scheme during period:                             6,864



Balance under scheme not yet issued/allotted

at end of period:                                 162,715



Number and class of securities originally         1,100,000 Ordinary
                                                  Shares of €0.32
listed and the date of admission                  each on 4th October 1995 and 
                                                  400,000 Ordinary Shares of 
                                                  €0.32 each on 6th December 2001



Total number of securities in issue at the end
of the period                                      540,897,751




Name of contact:           Angela Malone

Address of contact:       CRH plc, 42 Fitzwilliam Square, Dublin 2.

Telephone number of contact:    00 353 1 6344340





SIGNED BY ______________________________________________

Angela Malone

Company Secretary







If you knowingly or recklessly give false or misleading information you may be
liable to prosecution.



                            BLOCK LISTING SIX MONTHLY RETURN



INFORMATION PROVIDED ON THIS FORM MUST BE TYPED OR PRINTED ELECTRONICALLY.



To: The Irish Stock Exchange/The FSA



Date: 2nd October 2006



Name of applicant:       CRH plc



Name of scheme:          2000 Share Option Scheme (RA/CRHplc/00024)



Period of return: From:    01.04.06   To: 30.09.06



Balance under scheme from previous return:          434,904



The amount by which the block scheme has
been increased, if the scheme has been
increased since the date of the last return:       20,000,000



Number of securities issued/allotted under
scheme during period:                              1,143,352



Balance under scheme not yet issued/allotted
at end of period:                                  19,291,552



Number and class of securities originally          1,500,000 Ordinary Shares
                                                   of €0.32 each on
listed and the date of admission                   26th March 2002 and
                                                   20,000,000 Ordinary Shares of 
                                                   €0.32 each on 7th April 2006.



Total number of securities in issue at the end
of the period                                          540,897,751





Name of contact:           Angela Malone

Address of contact:       CRH plc, 42 Fitzwilliam Square, Dublin 2.

Telephone number of contact:    00 353 1 6344340





SIGNED BY ______________________________________________

Angela Malone

Company Secretary







If you knowingly or recklessly give false or misleading information you may be
liable to prosecution.



                          BLOCK LISTING SIX MONTHLY RETURN



INFORMATION PROVIDED ON THIS FORM MUST BE TYPED OR PRINTED ELECTRONICALLY.



To: The Irish Stock Exchange/The FSA



Date: 2nd October 2006



Name of applicant:       CRH plc



Name of scheme:          2000 Share Option Scheme (United Kingdom)
                                    (RA/CRHplc/00023)



Period of return: From:  01.04.06   To: 31.09.06



Balance under scheme from previous return:          667,146



The amount by which the block scheme has           -
been increased, if the scheme has been
increased since the date of the last return:



Number of securities issued/allotted under
scheme during period:                             26,619



Balance under scheme not yet issued/allotted
at end of period:                                 640,527



Number and class of securities originally         700,000 Ordinary Shares
                                                  of €0.32 each on
listed and the date of admission                  6th December 2001



Total number of securities in issue at the end
of the period                                     540,897,751



Name of contact:           Angela Malone

Address of contact:       CRH plc, 42 Fitzwilliam Square, Dublin 2.

Telephone number of contact:    00 353 1 6344340





SIGNED BY ______________________________________________

Angela Malone

Company Secretary







If you knowingly or recklessly give false or misleading information you may be
liable to prosecution.



                      BLOCK LISTING SIX MONTHLY RETURN



INFORMATION PROVIDED ON THIS FORM MUST BE TYPED OR PRINTED ELECTRONICALLY.



To: The Irish Stock Exchange/The FSA



Date: 2nd October 2006



Name of applicant:       CRH plc



Name of scheme:          2000 Savings Related Share Option Scheme (Republic
                                    of Ireland) (RA/CRHplc/00024)

Period of return: From:  01.04.06   To: 30.09.06



Balance under scheme from previous return:          573,879



The amount by which the block scheme has            -
been increased, if the scheme has been
increased since the date of the last return:



Number of securities issued/allotted under
scheme during period:                              168,577



Balance under scheme not yet issued/allotted
at end of period:                                  405,302



Number and class of securities originally         625,000 Ordinary Shares
                                                  of €0.32 each on listed and 
                                                  the date of admission 
                                                  26th March 2002



Total number of securities in issue at the end
of the period                                     540,897,751





Name of contact:           Angela Malone

Address of contact:       CRH plc, 42 Fitzwilliam Square, Dublin 2.

Telephone number of contact:    00 353 1 6344340





SIGNED BY ______________________________________________

Angela Malone

Company Secretary







If you knowingly or recklessly give false or misleading information you may be
liable to prosecution.



                     BLOCK LISTING SIX MONTHLY RETURN



INFORMATION PROVIDED ON THIS FORM MUST BE TYPED OR PRINTED ELECTRONICALLY.



To: The Irish Stock Exchange/The FSA



Date: 2nd October 2006



Name of applicant:       CRH plc



Name of scheme:          2000 Savings Related Share Option Scheme (United
                          Kingdom)
                               (RA/CRHplc/00020)



Period of return: From: 01.04.06   To: 30.09.06



Balance under scheme from previous return:          273,650



The amount by which the block scheme has           -
been increased, if the scheme has been
increased since the date of the last return:



Number of securities issued/allotted under
scheme during period:                              206,349



Balance under scheme not yet issued/allotted
at end of period:                                  67,301



Number and class of securities originally          600,000 Ordinary Shares
                                                   of €0.32 each on
listed and the date of admission                   15th June 2001



Total number of securities in issue at the end
of the period                                      540,897,751





Name of contact:           Angela Malone

Address of contact:       CRH plc, 42 Fitzwilliam Square, Dublin 2.

Telephone number of contact:    00 353 1 6344340





SIGNED BY ______________________________________________

Angela Malone

Company Secretary







If you knowingly or recklessly give false or misleading information you may be
liable to prosecution.






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