Previously, in 2011, Cranbrook had merged with Glenarm College, another Cognita school in Ilford.

The schools, which shared the same founder, then re-branded themselves under the new title of Cranbrook and were fully co-educational.

On 20 July 2016, reduced pupil numbers forced Cranbrook School to close permanently.

The old building comprised 4 main classrooms, the school hall, library, science lab and art room.

Following the merger with Glenarm College, the school had invested four million pounds into new building facilities.