This is a splendid example of an early post mill; historians believe that it probably dates back to the mid to late 1700s. There are thought to have once been as many as eight windmills in the parish of Finchingfield, but this is the only example to survive today. It has four spring sails, one pair of millstones and a tailpole. It is open to the public for a few summer months, usually from August to September.