Holland House, Papa Westray

The farm was expanded over two hundred years, and consists of a horse engine house, threshing barn, corn-drying kiln, smithy, stackyard and a lectern-style dovecote.

To the west of the house is a barn with a large round kiln; To the southwest are the remains of a harled, roofless, lectern-styled dovecote, most likely built in the 18th century.

[3] The complex contains several historic farm buildings, including a horse engine house, corn-drying kiln, threshing barn, smithy, stackyard and the lectern-style dovecote.

Most of the side-openings of the structure are still intact and the conical, flagstone roof has been restored.

During this time period, Traill constructed a horse engine house, probably the first horse-powered threshing mill in Orkney.