Gilwern Hill Cottage is marked on the 1837 Tithe survey as Pool, and on county Ordnance Survey maps as Pen-Rhiw-Paenod (taking the name of a disused cottage further south - see NPRN 509618). It is located at 1200ft above sea level and was shown as a roofed building on the 1889 survey, but roofless by 1904. The cottage was attached to a field wall (NPRN 509635), but no evidence of house walls is now visible, merely a large pile of rubble against the field wall on a platform, partly grassed over. No evidence was found that it had been called Gilwern Hill Cottage. A quern was found in the remaining western wall of the house. The farmstead (NPRN 509932) is a good example of an intake from the common.

R Hayman, H&H, 21 January 2010.