History in Structure

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Treble Hill

A Grade II Listed Building in Gwernyfed, Powys

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Latitude: 52.0449 / 52°2'41"N

Longitude: -3.1951 / 3°11'42"W

OS Eastings: 318134

OS Northings: 239177

OS Grid: SO181391

Mapcode National: GBR YY.F82Y

Mapcode Global: VH6BH.KVRQ

Plus Code: 9C4R2RV3+XX

Entry Name: Treble Hill

Listing Date: 15 December 1995

Last Amended: 15 December 1995

Grade: II

Source: Cadw

Source ID: 17058

Building Class: Domestic

Location: Located on an elevated terrace above the Wye and main Hay to Brecon road, facing over the bridge to Glasbury.

County: Powys

Community: Gwernyfed

Community: Gwernyfed

Locality: Treble Hill

Traditional County: Brecknockshire

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The house was probably built in c1800 by John Morgan, a wool merchant, who was born in 1749. He supplied wool to the Yorkshire mills which had been sorted into the various staples in a large 3-storey building to the S of the house, which was demolished in 1955. It descended through his sons, a great grandson becoming Lord Mayor of London. The wool business ceased in bankruptcy in 1839.


Rubble stone, formerly rendered, with slate roof. Originally of 2 storeys with cellars, later raised to three storeys, 3 bays, double-pile plan. Eight steps to the central entrance; margin glazed doors within a rounded headed panelled doorcase and fanlight with curved glazing bars. Modillion cornice. To either side, on the ground floor, tripartite 12-paned sashes, divided by columns and square imposts with fluted caps, all within a wide 3-centred stone arch. To first floor, 12-pane sashes and 6-pane sashes to second floor with brick reveals. Wide boxed eaves and a hipped roof. String course at base of SW gable chimney at original roof level.

To the rear, a 2-storey wing behind the NE side, and added at right angles behind the SW side, a glasshouse by Messenger & Co. probably late C19 or early C20.


Central through hall, the front section with a modillioned cornice and ceiling rose, and door through spine wall to rear section, widened to take a fine dog leg stair with bracketed treads and wreathed handrail. Wide 4-centred arch between front and back rooms, now blocked.

Reasons for Listing

Included as a fine and unaltered example of a prosperous merchant's country house of the early C19.

Recommended Books

Other nearby listed buildings

  • II Treble Hill Baptist Chapel
    Located in a conspicuous position on the Brecknock end of the causeway to Glasbury bridge, with its entrance gable behind a narrow forecourt facing the road.
  • II Railway Bridge at Treble Hill
    Located on the minor road from Treble Hill Glasbury to Felindre, approximately 100m from the junction with the A438 SW of the Glasbury Bridge.
  • II Ashgrove House
    Located at the end of a terrace of 2 houses, on the NW side of the road, behind a short front garden and hedge.
  • II Tir uched
    Located on a minor road leading due east from Treble Hill, Glasbury in the direction of Llanigon.
  • II Outbuilding at Tir Uched
    Located on a separate driveway from the main road entrance, to the S of the rear of the house.
  • II Aberllynfi House
    The house is located on the right bank of the River Wye, at right angles and close to the main Brecon to Hay road.
  • II Tramway Office at Broomfield
    Located above the SW garden of Broomfield, by the side of the former tramway.
  • II Glasbury House
    The house is located in its own grounds E of The Green, near the centre of Glasbury village.

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