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Cof Cymru: National Historic Assets of Wales · Wales

Summerhouse Fort

Llantwit Major, Vale of Glamorgan, Wales

The record

Designation
Listed building, Grade II
Broad class
Miscellaneous
Date of designation
16 December 2004
Locality
Boverton
Town
Cowbridge / Y Bont-Faen
Community
Llantwit Major
Unitary authority
Vale of Glamorgan
Country
Wales
Coordinates
51.38847, -3.44697
Cadw reference
83401

Slide toward Today to fade the historical sheet and see the modern map underneath.

David Rumsey Map Collection, Stanford Libraries

Shown on 5 historical map sheets, the earliest the 1636 "Cornubia : Devonia, Somersetus, Dorcestria, Wiltonia, Glocestria ..." (David Rumsey Map Collection, Stanford Libraries).

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This record in Cadw's own full report ↗

Cadw's description

On the cliffs in the far south-easterly corner of Llantwit Major Community set in the centre of Summerhouse Camp.

Part of a picturesque concept of a toy fort to be used as a summerhouse, look-out and picnic place on the top of the cliffs. It is built in the middle of the Iron Age cliff castle of Summerhouse Camp and dates probably from the period of 1780-1820 when such conceits were popular. During WWII it was apparently used as a site for a defensive point of some kind. The early history of the fort is unknown.

Built of local limestone rubble in the form of a octagonal curtain wall about 2m in height, with corner towers at least one of which on the north side seems to have been a privy. The finished design of both walls and towers is uncertain since they are both damaged and much covered in ivy but there appear to be small battlements in the form of a cock-and-hen parapet in parts. On the east side a small barn-like building is incorporated into the curtain. This is unroofed and featureless apart from a doorway but it has a WWII gun-loop on the north corner.

Included for its special interest as a picturesque folly dating from about 1800.

Nearby in the register

Other entries of the same register within about three miles of this one, by straight line.

Designated Historic Asset GIS Data, The Welsh Historic Environment Service (Cadw), 2026-09-07, licensed under the Open Government Licence http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ Cadw, the Welsh Historic Environment Service · Open Government Licence v3.0
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