Coed Derw is a timber-framed and brick-nogged building with a pitched slate roof, comprising two dwellings. It is probably of the 17th century and later. It has a two-storey central portion with a gable front and attic, with lower wings to the left and right. The left wing has a later central dormer. Four arched windows with brick voussoirs to the central portion, and a large, timber-transomed window to the attic.
Source: DE/DOM/SJ23NE, from photographs only
J. Archer, RCAHMW, 8.10.2004