Tir Pengam including attached barn and byre range to S

Tir Pengam is a small farmstead that includes a farmhouse, an attached barn, and a cross range containing a byre, stable, and pigsty. The farmhouse is constructed of white-painted stone and features a Welsh slate roof, boarded eaves, and a yellow brick end stack, with a rendered gable end. The windows are distinctive multipane casements with very small quarry glass, each with a hoodmould, surround, and blue-painted sills. The front of the house has two windows, with the upper storey close to the eaves. There is a central porch with a basket-arched doorway, stone seats, and a half-margin-glazed inner door. The right wing has a lean-to with a similar smaller ground floor window.

At the end of the farmhouse is a whitened rubble wall with flat coping and an iron gate with large stone jambs, which forms the traditional front garden enclosure. The side elevation has a similar window and another that has been remodelled. The rear elevation features several extensions but retains a similar casement window and a central Gothick arched window on the first floor.

The attached barn range, made of limewashed rubble, is located on the left (south) side of the house and has a Welsh slate roof at the front and stone tiles at the rear. It features central double doors that are taller at the rear and have a small gabled hood, along with long narrow ventilation slits on each side and an owl hole in the gable end. The lean-to end wing accommodates the stable. The lower cross wing on the east-facing downhill side has a corner doorway at the front right, a blocked doorway on the left, and a wider doorway at the rear. At the downhill gable end is a lean-to pigsty, with the yard enclosed by a rectangular wall.

The interior of the house likely originally had a front entrance leading into a hallway with rooms on either side, or directly into the main room, with stairs off. However, it has been partly remodelled, and the main entrance is now in the rear kitchen extension, with a staircase leading off a rear passage parallel to the rear wall. The barn interior consists of three bays, with a central threshing bay bordered by low walls and light king post trusses. The byre interior accommodates six beasts and has an interconnecting door with the stable, which features a loft above.