It is a 5-bay cruck structure.
The building was originally a house consisting of an inner room (one bay), a hall with passage (2 bays), and a cow house (2 bays).

The end gables were replaced in stone, probably in the 18th century with side walls that are 3-panel high timber-framing, infilled originally with brick nogging, resting on a plinth of rubble stonework.
To the north side the timber-framing is largely intact, but to the south, much of the timber-framing has had to be  replaced.
Timbers at the upper end show signs of smoke blackening, indicating that it was formerly a house.
Mortices survive for wind-braces – two to each bay.
The matching ‘blades’ of each cruck truss are sawn on only one surface, with the other surface curved.
This is a result of the vertical separation of the matching curved branch that formed the cruck, after being cut from a tree..
It is a 5-bay cruck structure. The building was originally a house consisting of an inner room (one bay), a hall with passage (2 bays), and a cow house (2 bays).
The end gables were replaced in stone, probably in the 18th century with side walls that are 3-panel high timber-framing, infilled originally with brick nogging, resting on a plinth of rubble stonework. To the north side the timber-framing is largely intact, but to the south, much of the timber-framing has had to be  replaced. Timbers at the upper end show signs of smoke blackening, indicating that it was formerly a house. Mortices survive for wind-braces – two to each bay. The matching ‘blades’ of each cruck truss are sawn on only one surface, with the other surface curved. This is a result of the vertical separation of the matching curved branch that formed the cruck, after being cut from a tree..
Ty Coch Cruck Barn, Llangynhafal, Denbighshire