Pen yr Allt

Original range comprises 2-storey cottage with single storeyed, hipped roofed wing to right (the former brewhouse) and lean-to extension to rear with catslide roof over single unit pigsty. A symmetrically planned picturesque wing was added against the left hand gable and comprises small single-storey 'cottage' flanked by 2 circular blocks. Rubble walls, now rendered; slate roof and octagonal stone stacks. Main part with entrance through 4-centred voussoir arch in lean-to porch to left, in angle with advanced circular bay; to right, lower storey 12-pane sash window, upper storey 2-light, mullioned and transomed window with small panes. Paired octagonal stone stacks to right end (with stone fence post as finial to left). Bay to right with single octagonal stone stack at each corner, elliptical arch over modern window in right end. 'Cottage' wing to left symmetrically planned; central porch with 4-centred voussoir arched entrance, flanked by elliptical arched recesses each with 2 light, 8-pane side hung casements, single stack to right. Wing has circular bays either end with projecting chimney breasts and single 2- light, 8- pane casement windows.

Sitting room contains a marble fireplace, locally reputed to have come from Plas Newydd.