Heechhiem is a Hollow Post mill in Goëngahuizen, Friesland, Netherlands which has been restored to working order.

[2] It is maintained in full working order and held in reserve should it be required for drainage purposes.

It is a hollow post mill on a single storey square roundhouse.

The roundhouse is clad in pantiles and mill body is covered in vertical boards, while the roof of the mill is boarded horizontally and covered in felt.

Each revolution of the screw lifts 296 litres (65 imp gal) of water.