Scheduled Monument

Thomaston CastleSM7865

Status: Designated


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Date Added
Supplementary Information Updated
Secular: castle
Local Authority
South Ayrshire
NS 23978 9515
223978, 609515


The monument comprises the substantial remains of a large L-plan castle probably dating from the beginning of the 16th century and believed to have been built for the family of Corry of Kelwood. It is said to have been inhabited until ca. 1800.

A small, square staircase tower stands in the re-entrant angle and rises to a corbelled-out parapet. An arched pend, still extant, leads through the smaller wing and would once have given access to the courtyard and, from the courtyard, to the main entrance in the stair tower. The basement floor contains four vaulted cellars in the main block and one in the wing.

The first floor appears to have been divided into a hall and private room in the main block, and a bedroom in the wing. Archaeological survey and monitoring undertaken during work to insert a pipeline to the W of the castle in 1997 revealed the presence of wall footings, one of which may be interpreted as comprising part of the castle's barmkin wall.

The area to be scheduled is nearly square in shape with maximum dimensions of 80m NE-SW by 80m NW-SE to include the castle and an area of ground around it within which associated remains are believed to survive. From the N-most point of the scheduled area the boundary runs along the W side of a stone boundary wall for 30m. The wall itself is excluded from the scheduling.

The scheduling boundary then runs for 3m along the S side of an adjoining wall. This wall too is excluded from the scheduling. The boundary then runs SE for 30m at a distance of 2m from the buildings which lie to the E of the castle. It then continues on the same orientation for a further 20m until it meets the field boundary which runs parallel to the road.

The boundary follows the line of the field boundary for 85m before turning NW for 80m. It then turns NE for 70m to meet the starting point. The area is marked in red on the accompanying map extract. Excluded from the scheduling are the pheasant runs which lie to the NW of the upstanding remains and the fence which lies to the W.

Statement of National Importance

The monument is of national importance as the substantial remains of a 16th-century L-plan tower house which retains considerable potential to enhance our knowledge of Scottish domestic architecture of that period.




Davis, M. C. (1991) The Castle and Mansions of Ayrshire, 388.

MacGibbon, D. and Ross, T. (1889) The Castellated and Domestic Architecture of Scotland, Vol. III, 289-90.

About Scheduled Monuments

Historic Environment Scotland is responsible for the designation of buildings, monuments, gardens and designed landscapes and historic battlefields. We also advise Scottish Ministers on the designation of historic marine protected areas.

Scheduling is the way that a monument or archaeological site of national importance is recognised by law through the Ancient Monuments and Archaeological Areas Act 1979.

We schedule sites and monuments of national importance using the criteria published in the Historic Environment Scotland Policy Statement.

The description and map showing the scheduled area is the legal part of the scheduling. The additional information in the scheduled monument record gives an indication of the national importance of the monument(s). It is not a definitive account or a complete description of the monument(s). The format of scheduled monument records has changed over time. Earlier records will usually be brief and some information will not have been recorded. Scheduled monument consent is required to carry out certain work, including repairs, to scheduled monuments. Applications for scheduled monument consent are made to us. We are happy to discuss your proposals with you before you apply and we do not charge for advice or consent. More information about consent and how to apply for it can be found on our website at

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Printed: 21/02/2019 18:26