Grimstone Farmhouse And Outbuilding Attached To South West

Grimstone Farmhouse is a building of 17th-century origin, with extensions added in the late 17th and early 18th century, and further alterations in the 19th century. It is constructed of mixed slatestone and granite rubble, with granite quoins to the original portion, and is partly rendered. The roof is slate, incorporating some asbestos slates, with two stone ridge stacks positioned at what were originally gable ends.

The original design comprised two rooms and a through passage, with both rooms heated by gable-end stacks; the original staircase location is now uncertain. Around the early 19th century, a milk room was added to the right and a stable to the left. A straight staircase was inserted at the rear of the upper-end room, along with a rear kitchen wing.

The original house has two storeys and two windows. A central door has a timber lintel and a triangular hood supported by brackets, alongside a six-pane sash window to the left and a two-light casement with two panes to each light and a timber lintel to the right. The first floor features two two-light casements under the eaves; a six-pane window to the left and a two-pane window to the right. A straight joint to the right indicates the former milk room, which has a plain door with a timber lintel and a two-light, three-pane casement under the eaves. A straight joint to the left marks the stable, with a reused timber door containing mortices and an upper loading door, both under timber lintels; a single-storey concrete lean-to is attached to the front left. The right return at upper ground level is rendered and lined out, featuring a six-pane casement to the right, while the left return displays large granite quoins, suggesting an earlier addition than the right side. The rear elevation has a two-storey wing with rendered sides. A gable end features a four-pane sash with a segmental brick head at both ground and first floor levels, while another four-pane sash is positioned under the eaves to the right. There is an asbestos slate roof. In the angle to the rear wing, a single-storey rendered lean-to contains a 20th-century two-light window. A single-storey concrete wash-room is attached to the rear and incorporates a nine-pane light and a door.

Inside, the room to the left of the passage has a chamfered axial beam, described as rough-cut, with a recess in the rear wall. 19th-century partitions divide the passage, and a rear plank and batten door with ventilation holes leads to the former dairy. The straight staircase is positioned at the rear right. The end room to the right has a flat-headed fireplace in the corner, with the flue returning to the main stack. Hooks are visible in the ceiling beams. The end room to the left potentially contains a former oven backing onto a stack, alongside rough-cut collars in the roof. The main roof of the house has crossed principals, a collar and ridge purlin, and one row of purlins.