Capel M C Cefn Nannau

Pebbledashed rubble with painted stone and rendered flush dressings and a slate roof with red clayware ridges. Gable end entry, with, unusually, two symmetrically gabled porches with 4-panelled doors facing each other over a narrow passage leading up to the gable end window; paired lancets with a blind spandrel over, its architrave enlivened with key blocks. Stained glass in patterned leadwork. String course at eaves level above, and a mid-gable band interrupted by a single lancet. Eared architraved vent in the gable apex. The 3 windows each side have rendered, eared and shouldered architraves, and margin glazing of cast textured glass around the central panels of mauve glass. To the rear, a Sunday school room, with access through a side porch.

Flat ceiling of patterned boarding and two large central roof vents. Plastered walls and painted splayed window reveals. Moulded pointed arch behind the raised pine pulpit, which has a galleried top curving round to the central book stand. Enclosed set fawr. Brass oil lamp brackets either side of the arch. Raked and numbered pine pews seating a total of 152. The Sunday school/vestry at the rear has high dado boarding.