Former Llay Hall Collery Engine House

The buildings are of red brick on a blue brick plinth, with a corrugated roof. The windows are round headed with blue brick arches and metal frames with concentrically and radially glazed fanlights. The more northerly part of the building has blue brick and terracotta string courses and eaves cornices. The larger part is a tall gabled structure oriented south-west to north-east. There are three low-level windows to the south-west gable and there were formerly five openings to each side elevation, though one on the north-west side has been replaced with a large sliding door. The roof appears to have been raised at some time and re-covered, and contains a longitudinal raised vent. Inside is a travelling crane by Herbert Morris Ltd. At the north-east is a small square block with a hipped slate roof and high brick parapets which may have been connected with the fan drift. This is adjoined by a wing at right angles oriented north-west to south-east, also with a hipped slate roof, which appears to have housed the fan engines.