Gimbletts Mill

Gimblett's Mill is a converted mill with attached miller's house, now functioning as a dwelling. The building dates from the mid to late 17th century, with significant extensions and remodelling around 1807, followed by further additions in the later 19th and 20th centuries. It is constructed of painted stone rubble with a slate roof, featuring ridge tiles and a gable end to the left, hipped to the right.

The original 17th-century structure comprises a one-room plan mill at the left end, formerly powered by an overshot wheel driven from a leat at the rear. The mill is built into the bank, with direct access to the loft from the rear. The miller's house is attached to the right, originally a single-room plan heated by a rear lateral stack, with the entrance at the right side of the front elevation. The entrance probably led to a passage with a screen partition to the left; a straight stair was likely inserted into the rear of the passage in the early 19th century, dividing to right and left at first floor level.

Around 1807 (dated by a coin found above a window), a one-room addition was constructed at the right end, also heated by a rear lateral stack with rubble shaft and slate weathering, which became the kitchen. Two further additions were made later in the 19th century: a single-storey scullery and wash house at the front right with a stack at the front, and a small single-storey unheated addition to the rear right with a gable end.

The exterior presents a two-storey, asymmetrical three-window front. All windows are 20th-century wooden casements with small panes, set within original apertures. The mill section displays a two-light unglazed window with shutters and a stable-type door at ground floor, both with slatestone segmental arches. The door jamb is inset with a slate bearing lettering in lower case: "R Tinney 1833" (the last numeral not entirely legible) and "1918", marking historic flood levels. At first floor is a three-light six-pane casement with a slate cill. The miller's house section features a central plank door with segmental slatestone arch at ground floor, with a two-light twelve-pane casement to the left and a two-light six-pane casement to the right (inserted into the original doorway). Two two-light six-pane casements appear at first floor. A straight joint in the masonry marks the early 19th-century addition, which is two storeys with a three-light eight-pane casement with segmental slatestone arch at ground floor and a two-light six-pane casement above. The projecting scullery and wash house to the front right has a four-pane casement to the left, a stable-type door to the right, and a stack with rubble shaft at the front. At the right end is a single-storey addition with a gable end containing a twelve-pane casement and a single-light window to the rear. The left end of the main range shows the wheel pit with a remaining socket in the wall for the watershaft; the wheel and all machinery were removed around 1957. The upper level of the gable end is rendered with a two-light six-pane casement to the left. At the rear, the original house displays granite quoins to the left and a large weathered external stack. The rear mill room has a 20th-century door providing direct access to the loft.

Internally, the ground floor room of the original house retains a large main ceiling beam with deep chamfer, accompanied by chamfered and roughly hewn cross beams. The original front doorway features a wooden lintel with chamfer and run-out stops; the present central doorway and window both have cambered wooden lintels with chamfer and run-out stops. The rear lateral fireplace (a later replacement) incorporates a cloam oven to the rear with clay door and a salt hole in the wall to the left. The straight stair along the right side of the room has been rebuilt and divides to right and left at first floor. A solid masonry wall separates this room from the early 19th-century addition to the right. The adjoining room to the right has a slate floor and a rear fireplace with chamfered wooden lintel, with cloam ovens to both right and left. The roof trusses have been completely replaced in the 20th century.