Ty Mawr, with attached outbuilding

Ty Mawr is a 17th-century lesser-gentry house with an attached outbuilding. Constructed of sandstone rubble with a blue slate roof and red brick gable chimneys, the main house is rectangular and consists of three cells over two and a half stories. It is situated on a north-south axis, set back from the road and accessed via its own gatehouse. The south gable features a relocated datestone inscribed "Hec domus / facta fuit / per W.W. / Anno Domini / 1640."

The house presents a gable-end entrance on its south side, which was retained following a rebuild. The side walls primarily feature windows with original wooden mullions, arranged in a repeating pattern. The east side is considered the architectural front, distinguished by a ground-floor central window with an ovolo-moulded wooden lintel and a stone slate hoodmould, and wedge voussoirs with keystones on all windows. All ground-floor and first-floor windows have four lights with ovolo-and-fillet moulding to the mullions; the right-hand half of the central ground-floor window was blocked to accommodate a staircase built around 1800. Three symmetrically arranged gabled dormers, now with modern glazing, are present on the roof of the east side. The west side has wooden lintels to the windows, except for one ground-floor window in the north bay, which has been replaced with concrete. The ground-floor windows on the west side resemble those on the east front, except that the central pairs of lights have been replaced with casements, and the upper windows now have modern casement glazing. The north gable wall features two small, two-light wooden mullioned windows on each floor, as well as two sets of pigeon holes with ledges in the gable above, one double and one single.

Attached to the west corner of the south gable is a long, single-story outbuilding, originally believed to have housed a kitchen and “cellar.” Constructed of random rubble with an altered roof, the outbuilding has a red brick chimney at its east gable and a mix of altered openings, including a garage door on the south side.

The interior has a three-cell plan, with a heated former hall at the south end and a heated parlour at the north end, separated by an unheated timber-framed pantry and through-lobby, now containing the staircase. Ground-floor ceiling beams are variously moulded as double-hollow or double-ovolo, with tongue-and-bar stops. The parlour fireplace retains a massive, Tudor-arched oak lintel with double-ovolo moulding. First-floor beams are similar to those on the ground floor, except at the south end, where they are chamfered with tongue stops. The attic contains five large collar trusses.