Despite his fortune Thomas was quite content to retain the mansion at Llanwern, a large square house on a hilltop overlooking the village. The house, dating to 1760, was old-fashioned in its appearance but that appearance concealed a delicate and beautiful interior reflecting Chinese influence.Lloyd, T. (1989), The Lost Houses of Wales: A Survey if Country Houses in Wales Demolished since c.1900, London: SAVE Britain's Heritage, , p.103
