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Gelli-Dywyll Farmhouse (also known as Cwmgelli Farm)

A Grade II Listed Building in Blackwood, Caerphilly

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Latitude: 51.677 / 51°40'37"N

Longitude: -3.1915 / 3°11'29"W

OS Eastings: 317713

OS Northings: 198257

OS Grid: ST177982

Mapcode National: GBR HX.5HYG

Mapcode Global: VH6DF.M3NQ

Plus Code: 9C3RMRG5+RC

Entry Name: Gelli-Dywyll Farmhouse (also known as Cwmgelli Farm)

Listing Date: 30 April 1997

Last Amended: 31 May 2002

Grade: II

Source: Cadw

Source ID: 18425

Building Class: Domestic

Location: Set back from the road approximately 1km N of Blackwood centre, with the principal farm buildings and yard on its E side.

County: Caerphilly

Town: Blackwood

Community: Blackwood (Coed Duon)

Community: Blackwood

Locality: Cwmgelli

Traditional County: Monmouthshire

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The main range is probably c1600, with kitchen wing added to the rear in the C18 and extended at the downhill end probably in the C19.


A 2½-storey farmhouse of grey roughcast walls, steep corrugated metal roof and roughcast stacks. The main range is on a sloping site with an added rear kitchen wing set back from the uphill end, and a lower added extension at the downhill end. The main range has rendered stack to the R and gable hall stack to the L. The house faces W and its entrance is in a gabled porch offset to the R side with a segmental-headed doorway. To its L is a small-pane sash window inserted in the C19. In the upper storey is a 2-light wooden casement to the R and a wider casement to the L inserted in the C20. The attic has a single roof dormer R of centre. The lower extension has a R end stack, inserted casement to the upper storey and 2 lower-storey windows. In the uphill (N) gable end the external stack has been modified to incorporate a trough, while the gable has small attic windows L and R. The rear wing has a single ridge stack. Its rear gable end has a boarded opening to the R in the lower storey and inserted attic 3-light window. The rear of the downhill extension has a single-storey projection, to the L of which is an inserted window. The lower (S) gable end has a boarded door to the R and lean-to to its L.


Inaccessible at the time of inspection.

Reasons for Listing

Listed as a sub-medieval farmhouse retaining its overall character and a rare pre-industrial survival in this part of the Monmouthshire valleys. In addition, it forms an impressive farm group with the adjacent multi-purpose agricultural range.

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