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Vertical Winding Engine House at the Former Wynnstay Colliery

A Grade II* Listed Building in Ruabon, Wrexham

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Latitude: 52.9822 / 52°58'56"N

Longitude: -3.0534 / 3°3'12"W

OS Eastings: 329372

OS Northings: 343285

OS Grid: SJ293432

Mapcode National: GBR 73.J2SZ

Mapcode Global: WH89B.298L

Plus Code: 9C4RXWJW+VJ

Entry Name: Vertical Winding Engine House at the Former Wynnstay Colliery

Listing Date: 22 February 1995

Last Amended: 22 February 1995

Grade: II*

Source: Cadw

Source ID: 15731

Building Class: Industrial

Location: Situated 1km SW of Ruabon at the former Wynnstay Colliery.

County: Wrexham

Community: Ruabon (Rhiwabon)

Community: Ruabon

Locality: Plas Madoc

Traditional County: Denbighshire

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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.


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


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.

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