Becoming a Member By joining or making a donation to the Oldland Mill Trust you are helping to support this wonderful Grade 2 listed Sussex Post Windmill. Members also enjoy a 10% discount on their restaurant food bill at The Thatched Inn, Hassocks and The Greyhound, Keymer. If you wish to become a member of The Oldland Mill Trust or make a donation then please email our Membership Secretary at: membership@oldlandwindmill.org.uk You can also download, complete and send us a Membership Application Form