Thornham had a watermill and a windmill working in the 1200s.

It is unclear as to where this mill would have been as Thornham has no obvious watercourse. However, in the 1200s, Norfolk's coastline was very differerent and one of the many rivulets may well have supported a small watermill.

THORNHAM
Norwich Priory Manor
SILVESTER, son of RICHARD DE CUMBES for £10 of silver granted to ROGER, the prior, in the reign of Henry III his water mill and windmill held of the Bishop and paying to the Bishop 40s.
Blomefield's History of Norfolk