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Walled Garden at Dyffryn House

A Grade II Listed Building in St. Nicholas and Bonvilston (Sain Nicolas a Thresimwn), Vale of Glamorgan

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Latitude: 51.4434 / 51°26'36"N

Longitude: -3.3046 / 3°18'16"W

OS Eastings: 309426

OS Northings: 172403

OS Grid: ST094724

Mapcode National: GBR HR.NCGW

Mapcode Global: VH6FB.NZVD

Plus Code: 9C3RCMVW+85

Entry Name: Walled Garden at Dyffryn House

Listing Date: 14 September 1992

Last Amended: 31 July 1995

Grade: II

Source: Cadw

Source ID: 13472

Building Class: Domestic

Location: Set in the slope to W of Dyffryn House on a NE/SW axis. Dyffryn is approximately 2km S of St. Nicholas.

County: Vale of Glamorgan

Community: St. Nicholas and Bonvilston (Sain Nicolas a Thresimwn)

Community: St. Nicholas and Bonvilston

Locality: Dyffryn

Traditional County: Glamorgan

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Saint Nicholas


Said to incorporate remains of the walled garden to the Elizabethan house that was on the site before the present house was built in 1891-3. Dyffryn is principally known for its gardens which were laid out for Reginald Cory by Thomas Mawson, the internationally known and notably prolific garden designer; work began in 1904/5. Sold in 1937 and purchased by Sir Cennydd Traherne who leased it to the County Council; now run as a conference centre. Until c1985 Dyffryn was a Botanical Garden.


Rubble walls, with flat coping, close three sides of this walled garden, shown on Thomas Mawson's 1926 plan as the Kitchen Garden: the fourth side (NW) is formed by modern glass houses. Round arched entrances and iron gates; the ground level has been raised. No longer a kitchen garden, now with flower beds. Further glass houses at NE end backing onto rubble potting sheds and gardeners building's; two storey at low end turning to single storey as it steps up the slope.

Reasons for Listing

Included for group value with Dyffryn House.

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