Gateley postmill was already derelict by 1330 and was probably dismantled soon afterwards.

When Robert Baynard died seized of it in the 4th of Edward III it was found ... that there was a messuage of no value above the reparations, six score acres of arable land at 3d per acre, six acres of meadow valued at 6s per ann., 3 acres of coppice wood valued at 6 years growth at 40d per acre, a windmill very ruinous at 5s per ann., rent of assise ...
Blomefield's History of Norfolk - Hundred of Launditch