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Calcining kilns at Cefn Cribwr ironworks

A Grade II Listed Building in Cefn Cribwr, Bridgend

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Latitude: 51.538 / 51°32'16"N

Longitude: -3.658 / 3°39'28"W

OS Eastings: 285108

OS Northings: 183428

OS Grid: SS851834

Mapcode National: GBR H9.G6MD

Mapcode Global: VH5H9.KL1T

Plus Code: 9C3RG8QR+6R

Entry Name: Calcining kilns at Cefn Cribwr ironworks

Listing Date: 2 October 1997

Last Amended: 2 October 1997

Grade: II

Source: Cadw

Source ID: 18959

Building Class: Industrial

Location: The ironworks is located near the bottom of the Nant Iorwerth Coch, on the S side of the brook. The calcining kilns stand to the S of the top level of the charging house, while the battery of coking

County: Bridgend

Town: Cefn Cribwr

Community: Cefn Cribwr

Community: Cefn Cribwr

Traditional County: Glamorgan

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John Bedford came from Kings Norton near Birmingham to Monmouthshire, and moved to Cefn Cribwr c.1771-2, where he started an ironworks, a colliery and a brickworks close to the same site. Calcining was a later development in the early technology of iron founding, which combined coke with limestone products. One battery of coking ovens lies some 10m further S, served by the same tramway - these now survive only at foundation level. Bedford died in 1791, and the ironworks with the other enterprises on the same site, were taken over by his son, then by Bryant & Co in 1824, possibly in anticipation of the opening of the Duffryn, Llynfi and Porthcawl Tramway in 1828, relocating the iron production on another site nearby. The ironworks was acquired by Ogwr Borough Council in 1987 and has since been consolidated and laid out as an important element in the Waun Cimla Country Park.


Built of local sandstone, and brick made on site. The structure consists of a central segmental brick-arched tunnel vault with finely laid facing stone voussoirs, through which ran the plateway directly to the upper part of the charging house. The plateway consisted of simple rectangular section fish-bellied rails in 4ft (1.22 metre) lengths set to a 4ft 6in (1.4 metre) gauge and held by cast iron chairs each twice bolted to large stones set in the track formation. To either side of the central arch, similar but slightly narrower arches open from the N side to the calcining kilns, each consisting of a brick lined 'V'-shaped oven. The upper section of the kilns is lost.

Reasons for Listing

Included at Grade II as an important element in the small ironworks of the late C18, which has survived largely unaltered as production moved elsewhere. Of group value with other elements of the ironworks.

Scheduled Ancient Monument: 4/3487GM417(BRI)R.

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Other nearby listed buildings

  • II* Cefn Cribwr ironworks, the furnace and charging house
    The ironworks is located near the bottom of the Nant Iorwerth Coch, on the S side of the brook. The furnace stands at the hub of the group of buildings.
  • II Blast Engine house at Cefn Cribwr Ironworks
    The ironworks is located near the bottom of the Nant Iorwerth Coch, on the S side of the brook. The blast engine house stands against the E side of the furnace.
  • II* Cast house at Cefn Cribwr Ironworks
    The ironworks lies at the bottom of the Nant Iorwerth Coch. The casting house adjoins the furnace on the N side.
  • II Bedford House
    The house lies on the N side of the village, off the W side of the minor road crossing the valley from Cefn Cribwr to Aberbaiden.
  • II Aberbaiden
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  • II Kenfig Hill War Memorial
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  • II The Talbot Institute
    The building is set in a terrace of C19 buildings, approximately 100m from the junction of Princes Road with Commercial Road.
  • II Accommodation Bridge over the former Duffryn Llynvi and Porthcawl Railway
    The bridge now spans the walk formed along the track of the railway on the W side of the Woodlands Park estate, carrying a farm track. It lies approximately 100m S of the S corner of the estate.

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