Sardis Baptist Chapel was built in 1822 and rebuilt in 1897, to the design of architect David Edward Thomas of Haverfordwest. The present chapel, dated 1897, is stone-built in the Simple Gothic style, with a slate-roof and gable-entry plan. The chapel has lean-to porches flanking a centred gabled projection, round-arched openings, the 2-light openings with round-arched heads to lights. The
Interior has a single centre staircase from the gallery branching to the sides below and the chapel ceiling has painted-plaster sloping sides and a flat, wooden-boarded centre portion. The seating is arranged as a paired block of centre seats and single side blocks.

RCAHMW, October 2010