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Latitude: 51.6543 / 51°39'15"N
Longitude: -3.2459 / 3°14'45"W
OS Eastings: 313908
OS Northings: 195790
OS Grid: ST139957
Mapcode National: GBR HV.6VNL
Mapcode Global: VH6DD.PPD5
Plus Code: 9C3RMQ33+PM
Entry Name: Penallta Colliery Workshops
Listing Date: 5 November 1991
Last Amended: 18 July 2001
Source ID: 13581
Building Class: Industrial
Location: Situated between Ystrad Mynach and Gelligaer, on the east side of Penalltau Road. The Workshops are at centre of the colliery complex, west of the Engine Hall.
Town: Ystrad Mynach
Built-Up Area: Ystrad Mynach
Traditional County: Glamorgan
Penallta Colliery was built between 1905 and 1909, at the height of the South Wales coal trade. It was established by the Powell Dyffryn Steam Coal Company, the region’s largest mining company, on the most modern principles as the ‘super-pit’ of its day. The surface buildings were laid out in matching architectural style in a spacious, artificially levelled area, on a rectilinear plan giving the ideal spatial arrangement of activities. The design of the enormous engine hall in particular was an important innovation copied at many later collieries. The colliery became one of the largest in Wales with 3,200 miners and a high output of top-quality steam coal. By 1935, Penallta held the European record for coal produced in a single week.
The Workshops building was built between 1905 and 1909 to house the smiths’ shop, electrical shop, fitting shop, carpenters’ shop and rope stores all under one roof. Partitions were provided between these working areas, and a single travelling crane above could serve all of them. This was an efficient arrangement which reduced building costs, maximised flexibility and saved space, and was followed at most later collieries.
Colliery workshop block, designed to match the others of the main colliery complex in style. A long 2-storeyed gabled structure on a N/S axis, some 90m long by 16m wide, built of Pennant sandstone with red brick dressings which comprise pilasters separating pairs of windows, end piers, stepped parapets, plinth and dentilled window and door surrounds incorporating keystones. Roof is of steel construction formerly with slates on the upper slope and glass below, now re-covered with corrugated material; the central ridge acted as a raised ventilator and rooflight. E side of 18 bays has tall segmental-arched windows formerly with multi-pane metal frames now blocked. Two large doorways and 3 small led into the different sections of the building, some formerly with smaller windows above them. Gable ends have a 3-window range and double-pitch gables rising to the raised ridge. Series of small chimneys, including at W end for the smiths’ shop. Low extension with corrugated roof of uneven pitch attached at left (S) end.
Listed for its importance as an impressive example of a combined colliery workshops. Group value with other listed items within this exceptionally fine colliery complex.
Other nearby listed buildings