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Castle-upon-Alun House including attached stone walls enclosing garden, and outbuilding

A Grade II Listed Building in St Brides Major, Vale of Glamorgan

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Latitude: 51.462 / 51°27'43"N

Longitude: -3.57 / 3°34'12"W

OS Eastings: 291026

OS Northings: 174841

OS Grid: SS910748

Mapcode National: GBR HD.M4QN

Mapcode Global: VH5HR.2JJ2

Entry Name: Castle-upon-Alun House including attached stone walls enclosing garden, and outbuilding

Listing Date: 12 June 1998

Last Amended: 3 March 1999

Grade: II

Source: Cadw

Source ID: 21769

Building Class: Domestic

Location: Located off the N side of a narrow lane which runs E-W through the hamlet of Castle-upon-Alun. A further lane bounds the E side of the grounds and leads to Ewenny.

County: Vale of Glamorgan

Community: St. Bride's Major (Saint-y-Brid)

Community: St Brides Major

Locality: Castle-upon-Alun

Traditional County: Glamorgan

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Saint Brides Major


The central unit of the house shows its sub-medieval origins. It is shown on the St. Brides Major Tithe Map of 1840 when it belonged to John Nicholl of the Merthyr Mawr Estate. The house was substantially remodelled and extended c 1850 and further remodelled early 20th century.


Long 2-storey range with rear wing. Entrances in the angle of the main range and rear wing. Long garden front faces S. Rough cast over masonry under steeply pitched slate roofs. Two masonry end stacks and 2 masonry ridge stacks to main range; 3 masonry stacks to rear range. Fenestration is generally 12-pane horned sash windows with flat heads and stone sills.

The main range consists of a lower 2-window unit towards the centre, flanked by a symmetrical 3-window addition to the L and a 4-window addition to the R with 2 gablets. The central unit has 2 narrow sashes to the upper story offset to the L. The lower storey has a C20 half-lit door to the R and a 4-light C20 window to the L. The L addition has 3 sash windows to the upper storey and a central half-lit door with overlight to the lower storey flanked by sashes. The R addition has 2 gablets with wide barge boards. Each gablet contains 2 half-dormer sash windows. There are 3 windows below, symmetrically placed.

The rear wing is offset to the W. The W gable end of the main range has no openings. The W side of the rear wing has 5 windows to the upper storey and 3 to the lower storey. There are 2 gabled attic dormers with multi-pane windows. The N gable end of the wing has wide barge boards. The ground floor has 2 sash windows and a small C20 window to the L.

GARDEN WALLS: Attached rubble walls define the garden to S and E of the house. The Gothic doorway near the SW angle of the house probably reuses medieval stonework; similar Gothic doorway at SE angle of garden walls. A square stone outbuilding is incorporated on the E side.


Entrance hall with large stone fireplace on the S side with a moulded Tudor arch. Straight staircase on W side of hall;beamed and pargetted ceiling. The reception rooms are to the S of the hall, with the main room at the end. The central reception room has a boarded door leading to a fireplace staircase to the L of the (now Victorian) fireplace. The doorway is at a 45° angle to the wall. To the R of the fireplace is a small lobby, perhaps reflecting the original end entry to the house. It now leads to a door to the garden. Internal detail of the house includes wainscot panelling, decorated and moulded coving and plastered ceiling beams.

Reasons for Listing

A well preserved example of a gentry house of several periods, the retention of the extensive garden walls is of additional interest. The sub-medieval origins of the house provide additional historic interest. Group value with the adjacent stables and cartshed.

Recommended Books

Other nearby listed buildings

  • II Former Byre at Castle-upon-Alun House
    Located to the N of Castle-upon-Alun house, and aligned with the rear wing.
  • II Cart shed at Castle-upon-Alun House
    Located to the NW of the former byre and house at Castle-upon-Alun. The ground falls away to the E, where a narrow lane passes the building.
  • II Clapper Bridge
    Located to the E of a narrow lane which leads from Castle-upon-Alun towards Ewenny. The bridge carries a footpath over the River Alun at a point where it is wide.
  • II Blackhall Farm
    Located on the N side of a lane which runs from St. Brides Major to Castle-upon-Alun. In a slightly raised position, cut into the hillside, with the front facing downslope.
  • II Bee Boles at Blackhall Farm
    Located on the N side of a lane which runs from St. Brides Major to Castle-upon-Alun, adjoining Blackhall farmhouse.
  • II Barn and attached ranges at Wallas Farm
    Fronting the road and directly facing junction with lane to Llampha, on the E side of farmyard.
  • II Pont Groes Gwta
    Bridge crossing the River Alun. Located N of the railway bridge at Croes Cwtta. The lane leads N towards Ewenny, with Castle-upon-Alun to the W and Wick to the SE. On the boundary with Ewenny commu
  • II Barn on Ewenny Down
    Near the crest of Ewenny Down, S of Ewenny village and E of Cwm Alun.

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