Gregwartha Manor Farmhouse

Gregwartha Manor Farmhouse is a farmhouse dating from the late 18th century. It features an elvan ashlar front with dressed granite lintels, while the rest of the building is constructed from granite rubble, also with granite lintels. The roof is made of grouted scantle slate and has brick chimneys at the gable ends and over a cross wall towards the right.

The original layout included three rooms deep on the left and two rooms deep on the right, all under one roof, with a lean-to at the left-hand end. The left side was designed as a farmhouse with two front rooms separated by a cross passage that leads to a stair hall and a shallow service room on the left. Behind this area on the left was a pantry or dairy with a doorway leading into the farmyard. A blocked doorway at the rear likely provided access to the farmhouse. The right rear appears to have been a self-contained one-room cottage, with two similar cottages back to back on the right side. Although the plan has been slightly altered in the 20th century, the house was originally built or remodeled to accommodate both a farmhouse and several self-contained cottages within a rectangular layout. The house stair has a borrowed light to receive illumination from a rear chamber window.

At the far left, there is a lean-to that was formerly a washhouse, which includes a tunnel leading into the hillside on its left. This tunnel is long, cranked in plan, and excavated into solid granite; it may have been used for storing perishable food, possibly serving as an ice-house.

The exterior of the farmhouse is two storeys high with a regular five-window front facing southwest. The left side features a symmetrical three-window farmhouse front with a central doorway, while the right side has a two-window front of a former cottage, which includes a blocked doorway on the left and a blocked window above. The 20th-century door may be a replacement for the original 16-pane hornless sashes. One window retains old bull's eye panes. The rear of the building has some possibly original 12-pane hornless sashes alongside some horned copies.

Inside, the farmhouse has been slightly altered in the 20th century but still retains its principal structural features. The dog-leg stair may date from the early 19th century and has a later newel post.