Scheduled Monument

Polnoon CastleSM5259

Status: Designated


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Date Added
Secular: castle
Local Authority
East Renfrewshire
NS 58499 51322
258499, 651322


The monument consists of the remains of a late fourteenth-century castle. It is situated on a small tree-covered mound with a steep slope on the W leading to the Polnoon Water. Very little remains except several large sections of random-rubble masonry and a rubble mound about 3m high near the centre of the feature.

A ground plan cannot be obtained as the building remains are mostly below ground and overgrown with trees and other vegetation. The substantial sections are located in the NE corner of the site. Their size and thickness indicates a small but sturdy building. There is evidence of vaulting in one portion.

The area to be scheduled is a quadrilateral which measures a maximum of 80m NE-SW by 50m NW-SE to include the castle and an area surrounding it which may contain evidence of activity relating to the monument, as shown in red on the attached map.

Statement of National Importance

The monument is of national importance as marking the site of a well documented late fourteenth century caste built by Sir John Montgomery with money obtained from the ransom of Henry Percy after the battle of Otterburn. In addition it has the potential to provide further evidence, through excavation, for shedding light on medieval defensive architecture, domestic occupation and the material culture of the people who lived in it.



The monument is recorded in the RCAHMS as NS 55 SE 6.

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

Find out more about scheduling and our other designations at You can contact us on 0131 668 8716 or at


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Printed: 20/04/2019 13:17