Bourn Windmill
| Bourn Windmill | |
|---|---|
Bourn Windmill, October 2006 | |
| Origin | |
| Mill name | Bourn Windmill |
| Mill location | Bourn, Cambridgeshire |
| Grid reference | TL 3118 5800 |
| Coordinates | 52°12′17″N 0°04′54″W / 52.20467°N 0.08165°W |
| Operator(s) | Cambridge Past, Present and Future |
| Year built | Early C17th. |
| Information | |
| Purpose | Corn mill |
| Type | Open trestle post mill |
| No. of sails | Four |
| Type of sails | Two Common sails, two Patent sails |
| Windshaft | Wood, cast iron poll end |
| Winding | Tailpole |
| Auxiliary power | Oil engine (1924–27) |
| No. of pairs of millstones | Two pairs |
Bourn Windmill is an open trestle post mill at Bourn in Cambridgeshire, England, which was standing in 1636. It is a Grade I Listed building and a Scheduled Monument. It is the oldest surviving windmill in the United Kingdom. The mill ceased work commercially in 1927 and was preserved in 1932. In November 2021, it was placed on the Heritage at Risk Register as being in danger of collapse.