Tyddyn Garreg Farmhouse

Tyddyn Garreg Farmhouse is a building with an earlier one and a half storey section on the right. It features rubble masonry, a steeply pitched slate roof with oversailing eaves, and a hipped stone dormer with a modern casement window. There is a 19th-century lean-to hood supported by timber brackets over a door to the left, which is also from the 19th century. The side elevation has been rebuilt to include a late 19th-century two-storey gabled bay at the rear. The farmhouse has an end chimney, deep verges, and modern two-light casements on both the first and ground floors with stone lintels. There is a single window to the right on the rear, also with a stone lintel and a modern frame.

To the left is an 18th-century house that was largely rebuilt after a late 19th-century fire. This section is now two storeys, raised from one and a half storeys, and features dormers and two windows. It has a steeply pitched slate roof with oversailing eaves and deep verges, along with 19th-century stone stacks and slate water tabling. The first floor has hipped half dormers, and the windows are Victorian sash windows. There is an eight vertically paned sash window on the ground floor to the right with a stone lintel, and a small window to the left with a modern frame. At the rear, there is an outshot with a lean-to stone porch and a window to the right, which has a stone lintel and a modern frame.

Inside the 17th-century part of the farmhouse, there are some plank and muntin partitioning in the entrance passage and stop-chamfered joists. An early 18th-century five-panelled door leads to the parlour, with the centre panel being horizontal. The structure includes a single through purlin collared truss and some plank and muntin infill.