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Cof Cymru: National Historic Assets of Wales · Wales

NE Roundhouse at Roundhouse Farm

Nantyglo and Blaina, Blaenau Gwent, Wales

The record

Designation
Listed building, Grade II*
Broad class
Domestic
Date of designation
29 June 1950
Locality
Nantyglo
Community
Nantyglo and Blaina
Unitary authority
Blaenau Gwent
Country
Wales
Coordinates
51.78528, -3.17551
Cadw reference
17086

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David Rumsey Map Collection, Stanford Libraries

Shown on 5 historical map sheets, the earliest the 1856 "42. Brecon." (David Rumsey Map Collection, Stanford Libraries).

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This record in Cadw's own full report ↗

Cadw's description

Roundhouse Farm is situated on the valley bottom, W of Nantyglo. Farm reached off the end of Waun Ebbw Road. NE tower located alongside main entrance to farmyard.

Built c. 1822 by Joseph Bailey, ironmaster, as one of two fortified stronghouses to protect himself and his family in case of rebellion by the workers at his Nantyglo ironworks. The nearby Nantyglo House, built for Bailey following his purchase of the ironworks in 1811, has long been demolished. There was serious rioting in Nantyglo in 1816 following an attempt to cut wages. In 1822, riots sparked by a cut in wages were suppressed by the military, and a detachment of Scots Greys were billeted nearby. The roof, floor-joists, window-sills, frames and fireplaces of the building were all of iron. The building was later used as the farmhouse to Roundhouse Farm, before the present house was built in the early C20.

Circular rubble-built tower with slightly battered base (walls c. 1.2 metres thick). Two storeys. Narrow rectangular windows, some with iron grilles, sills and lintels. Door faces SW; shallow porch, slated above. Iron door made of rivetted plates has circular holes (said to be musket holes) sealed by iron flaps. To right of doorway, iron grille to cellar.

Cellar and two floors; flooring lost, but retains iron joists. Stairs curve around inner wall up to iron roof, which consists of slotted iron segments overlaid with brick. Parapet wall with stones set on edge.

Listed as an historically and architecturally important building, unusual for using iron in its construction and, for its C19 date, in being fortified.

Nearby in the register

Other entries of the same register within about three miles of this one, by straight line.

Designated Historic Asset GIS Data, The Welsh Historic Environment Service (Cadw), 2026-09-07, licensed under the Open Government Licence http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ Cadw, the Welsh Historic Environment Service · Open Government Licence v3.0
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