History

Vertical winding engine house built 1855-6 as one of the original structures of the Wynnstay Colliery. It remained in use until the colliery closed in 1927. Subsequently the machinery was removed and the roof and chimney demolished.

Exterior

Sandstone ashlar with cast-iron fixings. SE elevation has tall arched opening with stone architrave and keystone which reaches almost to eaves level, on each side a similar, lower arched opening. Right hand return is gabled with shaped kneelers and has 2 tall arched openings with stone architraves and keystones. Beneath each one is a low masonry arch. Left hand return as right hand but low masonry arches are absent. Rear has 1 tall arched opening, flush with projecting keystone

Interior

Divided into 3 chambers by 2 massive masonry walls, each with 3 arched openings with cast-iron boxes set into the wall above each arch. Side chambers have massive stone engine beds.

Reasons for Listing

Graded II* as an exceptionally good example of the building type which is said to be the oldest surviving architectural monument of the North Wales coalfield.
Scheduled Ancient Monument Ref: DE 190.

External Links

• Cadwr Listing
• Wikidata Q17744584

External links are from the relevant listing authority and, where applicable, Wikidata. Wikidata IDs may be related buildings as well as this specific building. If you want to add or update a link, you will need to do so by editing the Wikidata entry.

Recommended Books

• 
  Department for Communities Listed Historic Buildings of Northern Ireland: Information Guide for the 2nd Survey of Historic Buildings
• 
  Listed Buildings and Other Heritage Assets
• 
  Oxfordshire: North and West (Pevsner Architectural Guides: Buildings of England)
• 
  Wiltshire (Pevsner Architectural Guides: Buildings of England)
• 
  Farrow & Ball How to Decorate: Transform your home with paint & paper
• 
  Surrey (The Buildings of England) (Pevsner Architectural Guides: Buildings of England)