Blaenannerch Calvinistic Methodist Chapel and Vestry

1838 walls of squared sandstone with slate roof. Lateral facade with six arched openings all with vousoirs. Two centre long windows, two outer gallery lights over two doors. All woodwork of 1896, 2-light tracery in windows, cambered-headed ledged doors with crescent overlights. Centre slate plaque. W end single long window with cambered head. Rear has two long windows with 2-light tracery. E end has similar window and vestry addition of roughcast with slate roof, four cambered-headed six-pane sashes and arched door between first and second windows.

1896 fittings including fine curved ornate gallery on seven cast iron columns by Macfarlane of Glasgow. Gallery front has deep bracketed cornice over columns with fretted decoration, and above, a continuous cast iron panel of double curved profile with floral decoration. Centre framed clock. Pitch pine pews and great seat. Pulpit with curving steps up each side, arched panelling to flanks and curved panelled front. Pilastered arch behind pulpit. Plaster ceiling with centre rose.

Vestry has boarded roof to Tudor-arched profile, boarded dado, and fireplace with pine mantel and cast-iron grate. Original cast-iron and pine Sunday school benches.