Seion Methodist Chapel was built in 1903 in the Simple Round-Headed style of the gable entry type. The facade facing to the road has a central round-headed doorway flanked by tall round-headed windows, and with a segmentally arched window above. In the pediement are two circular windows and a datestone inscribed 'SEION CAPEL TREFNYDDION WESLEYAID ADEILADWYD 1903'. By 1987 Seion chapel had been convertd for use as a factory.

RCAHMW, November 2008