Planning Update

18 December 2025

Big Yellow Group PLC

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

Planning Update

Big Yellow announces that it has obtained planning consent for a 58,000 sq ft storage centre on its site in Leicester.

We expect that this new store will deliver an approximately 8.7% net operating income return at stabilisation on the total capital deployed of £13.0 million.

Jim Gibson CEO, commented:

"We are pleased to have secured planning at Leicester, a new market for Big Yellow, and anticipate that the store will open in late 2027. We now have planning consent on 10 of our 13 pipeline stores."

Enquiries:

Nicholas Vetch CBE, Executive Chairman 01276 477811

Jim Gibson, Chief Executive Officer 01276 477811

John Trotman, Chief Financial Officer 01276 477811

Sodali & Co 0207 100 6451

Ben Foster

Victoria Heslop