1. Brongest corn mill is a two-storey building with rubble walls, under a hipped slate roof. It is depicted and annotated "Corn Mill" on the Ordnance Survey 25inch mapping, first and second editions of 1889 and 1905 respectively.
B.A.Malaws, RCAHMW, 27 May 2015.
2. Satellite photography shows that the building was still extant and unconverted in 2018. A 1962 photograph shows that the water wheel, which had been located on the north-east gable, had been removed.
W J Crompton, 6 December 2018.