Listed Building

The only legal part of the listing is the address/name of site. Addresses and building names may have changed since the date of listing – see ‘About Listed Buildings’ below for more information.


Status: Designated


There are no additional online documents for this record.


Date Added
Supplementary Information Updated
Local Authority
Planning Authority
NS 37815 60567
237815, 660567


Late 18th century. Long, single-storey, largely symmetrical Gothic former estate offices with 2-storey square-plan towers at E and W ends. (Currently housing, 2011). Whinstone rubble with ashlar margins. Some pointed-arched door and window openings and some rectangular openings. Consoled cornice to E and W towers. Tower to W with ashlar W elevation and large pointed-arch opening with trefoil opening above, flanked by pointed arch openings with moulded surrounds. Some dormers rising above wallhead to N elevation.

Predominantly non-traditional replacement windows. Single timber sash and case window to upper storey at NE with timber Y-tracery. Grey slates. Round stack to E.

COURTYARD: coped rubble courtyard walls to N with square- gatepiers to W.

INTERIOR: (partially seen, 2011). Converted to form 3 dwellings. Predominantly later interior features.

Statement of Special Interest

Long Barn forms an important part of the former estate of Castle Semple. Depicted on the Ordnance Survey Map of 1863 as Offices, the building has been converted into dwellings, and retains some interesting Gothic detailing in the pointed-arched windows and openings. The distinctive towers to the East and West ends of the building add to its distinctive character and the Gothic detailing is characteristic of the estate in the late 18th century.

Castle Semple Estate has a long history, originally associated with the Semple family who built the first Castle Semple and the collegiate church (scheduled monument, 2011) around 1504. In 1727, the Semples sold the estate to a sugar plantation owner, William McDowell. McDowell began a range of land improvements to the estate, which form the basis of the current estate, including building a new Castle Semple House and landscaping the grounds. The 2nd William MacDowell continued the improvements to the estate including erecting a Temple at the deer park in Kenmuir Hill (see separate listing). The Estate was sold in 1814 to a Major John Harvey who continued to improve the landscape, and it is possible that this building dates to this time of improvement. The family finances declined during the course of the 19th century and the estate was sold in 1908. After this, the house was converted to apartments and the land broken up into small holdings. The House was damaged by fire in 1924 and the central portion of it demolished in the 1960s (see separate listing). The central section of the estate is currently a Regional Park.

List description updated, 2012. Category changed from B to C(S).



Plan of Castle Semple Estate, 1808, NAS RHP 3609/1/1. 1st Edition Ordnance Survey Map, (1863). The New Statistical Account of Scotland, (1834-45), Vol 7 p77. F A Walker, The South Clyde Estuary, (1986) pf69. Stuart Nisbet, Castle Semple Rediscovered, (2009). The SCRANI Partnership, Conservation Statement and Management Proposals, prepared for Clyde Muirsheil Regional Park, 2008. Further information from owners.

About Listed Buildings

Listing is the way that a building or structure of special architectural or historic interest is recognised by law through the Planning (Listed Buildings and Conservation Areas) (Scotland) Act 1997.

We list buildings of special architectural or historic interest using the criteria published in the Historic Environment Scotland Policy Statement.

The information in the listed building record gives an indication of the special architectural or historic interest of the listed building(s). It is not a definitive historical account or a complete description of the building(s). The format of the listed building record has changed over time. Earlier records may be brief and some information will not have been recorded.

The only legal part of the listing is the address/name of site. Addresses and building names may have changed since the date of listing and if a number or name is missing from a listing address it may still be listed. Listing covers both the exterior and the interior and any object or structure fixed to the building. Listing can also cover structures not physically attached but which are part of the curtilage of the building, such as boundary walls, gates, gatepiers, ancillary buildings etc. The planning authority is responsible for advising on what is covered by the listing including the curtilage of a listed building. Since 1 October 2015 we have been able to exclude items from a listing. If part of a building is not listed, it will say that it is excluded in the statutory address and in the statement of special interest in the listed building record. The statement will use the word 'excluding' and quote the relevant section of the Historic Environment Scotland Act 2014. Some earlier listed building records may use the word 'excluding', but if the Act is not quoted, the record has not been revised to reflect current legislation.

If you want to alter, extend or demolish a listed building you need to contact your planning authority to see if you need listed building consent. The planning authority advises on the need for listed building consent and they also decide what a listing covers. The planning authority is the main point of contact for all applications for listed building consent.

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


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Printed: 19/04/2019 01:22