Penallt Baptist is an early nineteenth century chapel dating probably from c.1820, built originally with a long (east) wall entry. The chapel was re-ordered in the late nineteenth century with a gable (south) entry, and extended in the early twentieth century on the north side with vestries etc. The chapel is built in the Simple Gothic style from local conglomerate rubble with dressed stone quoins and voussoirs (painted) and a half-hipped slate substitute roof. The north vestry is red brick with the roof chiefly in slate. Penallt is now Grade 2 Listed as a rural non-conformist chapel, dating from the early nineteenth century, which despite some changes has retained its original character.

RCAHMW, September 2010