The Ellison Institute of Technology, the research body co-founded by tech billionaire Larry Ellison, has gained consent for a reworking of 11 and 12 St James's Square, the Mayfair headquarters it bought two years ago for £162 million.
Ellison Institute gets all clear for Mayfair HQ makeover
Building sold to Institute in 2024 for £162 million
By Paul Norman
CoStar NewsAugust 19, 2026 | 1:20 P.M.
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