While most of the commonly wood-built houses of the era are long gone, Pennarth Fawr ’s sturdy stone construction has seen it survive almost unchanged for centuries.
Er bod llawer o dai pren cyffredin yr oes wedi hen fynd, mae Pennarth Fawr, oherwydd ei adeiladwaith carreg cadarn, wedi goroesi bron heb newid o gwbl ers canrifoedd.