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Rhydlydan Mill

A Grade II Listed Building in Caersws, Powys

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Latitude: 52.5283 / 52°31'41"N

Longitude: -3.3894 / 3°23'21"W

OS Eastings: 305838

OS Northings: 293176

OS Grid: SO058931

Mapcode National: GBR 9P.FVHP

Mapcode Global: VH682.6QH5

Plus Code: 9C4RGJH6+86

Entry Name: Rhydlydan Mill

Listing Date: 1 March 1995

Last Amended: 5 November 1996

Grade: II

Source: Cadw

Source ID: 15665

Building Class: Industrial

Location: The mill lies on the N side of the Newtown to Llanwnog road, in the valley of the Rhyd-ros-lan, which formed the ancient boundary of the Cantref of Arwystli.

County: Powys

Community: Caersws (Caers┼Ás)

Community: Caersws

Locality: Rhydlydan

Traditional County: Montgomeryshire

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The water mill was built in c.1845, possibly on the site of an earlier mill. A later C19 drying kiln of similar materials is attached to the rear (E) end. The date 1845 painted internally is credible.


Stone with brick dressings and eaves courses with a slate roof. The mill is of 2 storeys and attic. Two doors to the ground floor, with 2 windows, and three windows to upper stone floor plus 1 blocked window. The gable ends have timber framed and weatherboarded gables. A cambered-headed window at the rear lights the wheel house.


The funnel type kiln has a brick substructure, and perforated iron tiling to the loft. The attic storey of the mill has a raised walkway between the wooden bins; and trapdoors. Wooden sack-hoist to the left; the ties of the roof trusses arched to allow passage beneath. Wooden steps lead down from the attic to the stone floor, which has three sets of stones, two bearing the plates of E.Davies & Sons, Liverpool, and Kay & Hilton, Liverpool. The three pairs of stones are driven from above by wooden stone nuts; and have hoppers over. The drive to a flour dresser and a boulter are to the rear of the floor on the right. The driving machinery consist of internal overshot iron wheel with wooden buckets, the latter now lost, and iron pit wheel. The ground floor has wooden stair up to the stone floor, and a doorway into the kiln, which is also accessible from the stone floor.

Reasons for Listing

Included for is unusually complete survival of machinery, and, with overdrift stones and high floors, as a very rare type outside Eastern England.

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Other nearby listed buildings

  • II Pentre
    Located on the N side of the B4568 at the W end of Aberhafesp village. The house is positioned on a slope with the entrance facing down hill. It has a roughly circular front garen with orchards beyon
  • II Milestone
    On the A489, S side, opposite the entrance to Ty Mawr farm.
  • II Milestone outside Aelbryn
    The milestone is now located in the narrow road verge, under the garden hedge of 'Aelbryn', approx 1km E of the village centre.
  • II Llwyn-y-brain
    The farmhouse is located on a river terrace above the River Severn valley, 3Km E of Llanwnog village, and is reached by a farm road by the side of 'Aelbryn'
  • II Aberhafesp Hall
    Located at the end of a short driveway leading N off the B4568. Set within gardens stretching towards the East, with a former coach house to the rear.
  • II Church of St.Gwynnog
    At the E end of the village, N of the B4568 and the Severn Valley, in a slightly raised position.

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