CRN Cairn Homes Plc

                                                                                                                                             13 December 2024

Cairn Homes plc (the “Company”)

Transaction in own shares

The Company announces that on 12 December 2024 it purchased a total of 12,959 of its ordinary shares of EUR 0.001 each (the "ordinary shares") on Euronext Dublin and the London Stock Exchange through the Company's broker Numis Securities Ltd (trading as Deutsche Numis) (“Deutsche Numis”), as detailed below. The repurchased shares will be cancelled.

The purchases form part of the Company’s share buyback programme announced on 3 July 2024.

Following settlement and cancellation of the above purchases, the Company's total number of ordinary shares in issue shall be 621,644,877 shares, each carrying the right to one vote. The

Company holds nil ordinary shares in treasury.

In accordance with Article 5(1)(b) of Regulation (EU) No 596/2014 (the Market Abuse Regulation), the detailed breakdown of individual trades made by Deutsche Numis on behalf of the Company as part of the share buyback programme is set out below.

Contacts:

Cairn Homes plc +353 1 696 4600

Tara Grimley, Company Secretary

Appendix

Transaction Details

Euronext Dublin