National Storage Mechanism | Additional information

15 September 2025

Big Yellow Group PLC

("Big Yellow", "the Group" or "the Company")

Freehold Acquisition

Big Yellow announces that it has exchanged contracts to acquire a 0.5 acre freehold property in Bethnal Green, London for £10.8 million. Completion of the purchase is unconditional and will take place in 18 months, allowing time for the Group to seek planning consent to develop a 68,000 sq ft self storage centre on the site, which is expected to yield approximately 8% NOI on the capital deployed at stabilisation.

Jim Gibson, Chief Executive Officer, commented:

"This is a high-quality zone 2 London addition to the Group's pipeline; opportunities to acquire sites in this location are rare, and there is very little existing self storage supply in the local area."

Enquiries:

Big Yellow:

Nicholas Vetch, Executive Chairman 01276 477811

James Gibson, Chief Executive Officer

John Trotman, Chief Financial Officer

Sodali & Co 0207 100 6451

Ben Foster

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