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Plas Isaf

A Grade II Listed Building in Llanarmon-yn-Ial, Denbighshire

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Latitude: 53.0975 / 53°5'50"N

Longitude: -3.207 / 3°12'25"W

OS Eastings: 319276

OS Northings: 356266

OS Grid: SJ192562

Mapcode National: GBR 6X.8TQJ

Mapcode Global: WH77J.QD1R

Entry Name: Plas Isaf

Listing Date: 29 May 1998

Last Amended: 29 May 1998

Grade: II

Source: Cadw

Source ID: 19897

Building Class: Domestic

Location: Situated on E bank of River Alyn, just N of Pont Llanarmon.

County: Denbighshire

Town: Ruthin

Community: Llanarmon-yn-Ial (Llanarmon-yn-Iâl)

Community: Llanarmon-yn-Ial

Locality: Llanarmon yn Ial

Traditional County: Denbighshire

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House, possibly late C16 to early C17 in origin, altered. It is suggested that the house was the manor house of Llanarmon, on a medieval site close to the fortified Tomen y Faerdref. In 1391 the manor house included a hall, chamber, stable, grange and beast house, 64' (19.5m) long and thatched. Marked on the 1844 Tithe Map as owned by Harriett Myddelton, occupied by David Davies, with 18 acres (7.3ha).


House, whitewashed rubble stone with slate roof. Stone right end stack with dripstones. Long 2-storey elevation, with triple casement windows, widely spaced, the left bay a converted lofted cartshed. Large rendered and slated porch roughly central with one large triple casement to right and one smaller to left. At left end, brick-arched coach entry now glazed. First floor has 3 triple casements, roughly square, under eaves, one over coach entry, and one each side of porch, that to right not aligned over ground floor window. Left end outside steps to loft door with brick head. Blocked dove-holes over door. Rear is rubble stone with one small window under eaves to right. Centre wall-face stack. Then lean-to porch with W door and 20-pane fixed light N. NE wing to left, two-storey with brick N stack, 2 first floor W windows and one to ground floor. Lean-to on N end.


Cross-passage 2-unit plan. Large chamfered beam in passage, parlour to E has chamfered beam with ogee stops, E end fireplace with timber lintel and access to stairs in NW corner. Room to W of passage has C20 corner fireplace. Upstairs is one massive tie-beam and collar truss and one collar truss missing tie-beam. Heavy purlins.

Reasons for Listing

Included as a house of early origin, retaining vernacular character in the long low proportions and in the scale of detail. The interior features indicate an early date.

Recommended Books

Other nearby listed buildings

  • II Pont Llanarmon
    Situated some 230m E of the church, by Llanarmon Mill.
  • II Former Church School
    Situated just S of churchyard wall of church of St Garmon.
  • I Church of St Garmon
    Situated in the centre of Llanarmon village.
  • II Llwyn Onn
    Situated on the E side of Ffordd Rhiw Ial, that runs N from the village centre, and some 80m N of the Raven Inn.
  • II Bier House and Gates at Church of St Garmon
    Situated on W side of N entry into Llanarmon churchyard.
  • II The Old Vicarage
    Situated facing E over churchyard in Llanarmon yn Ial village.
  • II Yale Cottage
    Situated on N side of road running W from village centre, some 100m WSW of the Raven Inn.
  • II Alyn Bank
    Situated on E bank of the River Alyn, approached by drive off B5431, some 350m SSW of Llanarmon village.

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