Publication of a Supplementary Prospectus

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Southern Housing has published a supplement to its £1,000,000,000 Note Programme Admission Particulars, dated 17 June 2026. This update provides further details regarding the existing note programme, which was initially established on 16 September 2025. Investors should consult the supplement and programme particulars to determine if they are among the intended addressees for the information provided.

Disclaimer*

Southern Housing

17 June 2026

Publication of Supplement

Southern Housing

17 June 2026

Southern Housing

Publication of Supplement to Programme Admission Particulars

The following supplement (the Supplement) is available for viewing:

Supplement dated 17 June 2026 relating to the £1,000,000,000 Note Programme of Southern Housing.

To view the full document, please paste the following URL into the address bar of your browser.

http://www.rns-pdf.londonstockexchange.com/rns/7247I_1-2026-6-17.pdf

For further information, please contact:

Email: Investors@SouthernHousing.org.uk.

DISCLAIMER ‑ INTENDED ADDRESSEES

Please note that the information contained in the Supplement may be addressed to and/or targeted at persons who are residents of particular countries (specified in the Programme Admission Particulars dated 16 September 2025 of Southern Housing (the Programme Admission Particulars)) only and is not intended for use and should not be relied upon by any person outside these countries and/or to whom the offer contained in the Programme Admission Particulars is not addressed. Prior to relying on the information contained in the Supplement and/or Programme Admission Particulars you must ascertain from the Programme Admission Particulars whether or not you are part of the intended addressees of the information contained therein.

Your right to access this service is conditional upon complying with the above requirement.

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