Originally the site of a Windmill, a secondary school was built for Deddington and the surrounding villages in 1950. The Windmill School had approximately 240–50 pupils, including children from the
neighbouring villages of Steeple Aston, Milton and Adderbury. In September 1971 The Warriner Comprehensive School opened in Bloxham, taking all the children from the old Windmill School.
The Windmill and its grounds are owned by the Parish Council and leased to the Windmill Community Centre Charity (No. 1101528). Day-to-day running is devolved to an independent management committee (WMC). The 99 year lease was granted in 1988 for a £1 p.a. peppercorn rent.
The Charity's main objective (quoting from the governing trust document) is 'to
hold upon trust the property known as the Windmill Community Centre for the
purposes of a village hall for the use of the inhabitants of the parish of Deddington in the county of Oxford without distinction of political, religious or other opinions, including use for meetings, lectures and classes, and for other forms of recreation and leisure time occupation with the object of improving the
conditions of life of the said inhabitants'.