UNITED STATES




SECURITIES AND EXCHANGE COMMISSION




Washington, DC 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13A - 16 OR 15D - 16 OF

THE SECURITIES EXCHANGE ACT OF 1934




13 February 2015

Commission File No. 001-32846

____________________________







CRH public limited company

(Translation of registrant's name into English)

____________________________

Belgard Castle, Clondalkin,




Dublin 22, Ireland.




(Address of principal executive offices)

____________________________




Indicate by check mark whether the registrant files or will file annual reports

under cover of Form 20-F or Form 40-F:




Form 20-F

X

Form 40-F___

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by

Regulation S-T Rule 101(b)(1):

_________

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by

Regulation S-T Rule 101(b)(7):________

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:

    BlackRock, 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):

     12th February 2015

6.  Date on which issuer notified:

     13th February 2015

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

      Holding has gone above 8%

8. Notified Details:

A: Voting rights attached to shares

Class/type of shares (if possible use ISIN CODE)	Situation previous to the triggering transaction
	Number of shares	Number of voting rights
Ordinary Shares (IE0001827041)	63,591,329	63,591,329

	Resulting situation after the triggering transaction
Class/type of shares (if possible use ISIN CODE)	Number of shares	Number of voting rights		% of voting rights
		Direct	Indirect	Direct	Indirect
Ordinary Shares (IE0001827041)	N/A	N/A	67,412,664	N/A	8.27%
SUBTOTAL A (based on aggregate voting rights)		67,412,664		8.27%

B: Financial Instruments

Resulting situation after the triggering transaction

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

Total (A+B) (where applicable in accordance with national law)	Number of voting rights	% of voting rights
67,412,664	67,412,664	8.27%

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

10. In case of proxy voting:

11. Additional information:

   Done at 12 Throgmorton Avenue, London, EC2N 2DL, U.K. on 13th February 2015.

12. Contact name:

Neil Colgan

Company Secretary

13. Contact telephone number:

+353 1 634 4340

By:___/s/Maeve Carton___

M. Carton

Finance Director