Blocklisting Interim Review

CRH PLC
03 April 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: 3rd April 2006


Name of applicant:       CRH plc


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


Period of return: From:               01.10.05            To:       31.03.06



Balance under scheme from previous return:       11,499,218


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          1,855,989
scheme during period:



Balance under scheme not yet issued/allotted      9,643,229
at end of period


Number and class of securities originally         11,000,000 Ordinary Shares
                                                  of €0.32 each on 4th
listed and the date of admission                  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    538,297,327
of the period




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: 3rd April 2006



Name of applicant:       CRH plc



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



Period of return: From:               01.10.05
  To:       31.03.06



Balance under scheme from previous return:       204,002



The amount by which the block scheme has        34,423

been increased, if the scheme has been

increased since the date of the last return:



Number of securities issued/allotted under          169,579
scheme during period:
at end of period


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



Total number of securities in issue at the end      538,297,327

of the period





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: 3rd April 2006



Name of applicant:       CRH plc



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



Period of return: From:               01.10.05
  To:       31.03.06



Balance under scheme from previous return:       1,049,900



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          614,996
scheme during period:


Balance under scheme not yet issued/allotted      434,904
at end of period


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

Total number of securities in issue at the end      538,297,327

of the period





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: 3rd April 2006



Name of applicant:       CRH plc



Name of scheme:          2000 Share Option Scheme (United Kingdom)

                                    (RA/CRHplc/00023)



Period of return: From:               01.10.05
  To:       31.03.06



Balance under scheme from previous return:       699,250



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          32,104
scheme during period:


Balance under scheme not yet issued/allotted      667,146
at end of period


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      538,297,327

of the period





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: 3rd April 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:               01.10.05
  To:       31.03.06



Balance under scheme from previous return:       576,338


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          2,459
scheme during period:


Balance under scheme not yet issued/allotted      573,879
at end of period



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      538,297,327

of the period





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: 3rd April 2006


Name of applicant:       CRH plc

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

Period of return: From:               01.10.05
  To:       31.03.06


Balance under scheme from previous return:       443,467


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          169,817
scheme during period:


Balance under scheme not yet issued/allotted      273,650
at end of period

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      538,297,327
of the period





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     
BLRILFERSLIVIIR