Built in 1926 by Ivor Jones and Percy Thomas, architects of Cardiff, for Evans and Reid Coal Company. Neo-Georgian facade to Hennebique-type reinforced concrete structure. Largely flat roof, except to front where it is of mansard form. Symmterical 7-bay front elevation; five storeys with 2 attic storeys above. Flemish bond red brick with channelled Portland stone ground floor and similar freestone dressings. Interior retains fine contemporary Classical detail (RAJ 20/9/01; based on CADW listing description).