Former Navigation Colliery Fan House and Fan Drift

Single storey Fan House with attached curved Fan Drift to right joining the Heapstead. Irregular plan consists of a 4-bay gabled left (S) wing, a flat-roofed tower breaking forward to centre, similar to rear, and to right (N) projecting further forward a lower 4-bay frontage with a short single-pitched roof extending to the parapet, and a lower lean-to 2-bay wing adjoining the Fan Drift which is stepped back to right. Of high quality red and yellow engineering brick, the yellow brick slightly projecting and partly stepped to quoins, pilasters, plinth and cornice, forming a grid pattern. Welsh slate roof, not intact, with overhanging eaves and gabled ridge ventilator to left bay. Fan Drift is of rubble with cambered vault. Windows to Fan House, left wing, are round-headed with keystone and multipane metal frames; centre left doorway. To right wing windows are smaller with cambered heads. 3-bay S gable end has similar round-headed windows, altered to doorway left, with iron-framed gable roundel above.

Lined with fine quality yellow, white and red brick moulded and stepped to surrounds.