At Sunnyside Mill the mill house (nprn 418317) survives with two ponds in the garden. There are few other remains of the mill. Across the road to the south there is a substantial stone chimney with the date 1870 set into it.
Source: A Guide to the Industrial Archaeology of South East Wales, AIA, 2003
Claire Parry, RCAHMW, 29 July 2011.
Note: The site appears to be incorrectly named on the Ordnance Survey first edition 25in map of 1881 as "Fernside Mill (Paper, Disused)" B.A.Malaws, RCAHMW, 06 February 2013.