This long hut is one component of a group of structures which forms a deserted rural settlement on Llain Wen (NPRN 418534)
It measures 7.1m (NW-SE) by 2.75m within wall footings 0.6m-0.75m wide composed of small boulders. There are traces of a partition wall 4.5m from the east end that divides the building into two unequal bays, the upper, smaller one 0.1m-0.2m above the lower. There is an entrance gap in the east wall of the lower bay. The longhut is built on gently sloping ground with no evidence of platforming.

David Leighton, RCAHMW, 6 March 2013