Comlongon Castle is a Grade A listed building in the Dumfries and Galloway local planning authority area, Scotland. First listed on 4 November 1971. Castle, mansion house. 3 related planning applications.
Comlongon Castle
- WRENN ID
- standing-pier-spindle
- Grade
- A
- Local Planning Authority
- Dumfries and Galloway
- Constituency
- Dumfriesshire, Clydesdale and Tweeddale MP: David Mundell (Con)
- Country
- Scotland
- Date first listed
- 4 November 1971
- Type
- Castle, mansion house
- Address
- Comlongon Castle, DG1 4NA
- OS grid reference
- NY 079 689
- Coordinates
- 55.00657, -3.44092
- Source
- Historic Environment Scotland listing
Description
Comlongon Castle is a large, rectangular-plan tower house from the 15th century, located at the west end of a mansion house built between 1900 and 1902 by architects James Barbour and J.M. Bowie from Dumfries. The tower house has five storeys and is constructed from rubble with ashlar dressings. It features a round-headed door with a yett at the east end of the north wall, small mostly square-headed openings, and larger openings that have iron grilles. The building has a splayed base course and a corbelled and crenellated parapet that encloses the roof, connecting to a crow-stepped cap house over three angles.
Inside, there are many passages, chambers, and presses within the wall thicknesses, along with a carved stone chimney-piece on the first floor. To the west, there are outbuildings linked by a crenellated wall. The 20th-century house is mostly three storeys and echoes features of the tower house, with an asymmetrical design that includes extensive use of corbelling and crow-stepped gables. It is also rubble-built, with contrasting pink ashlar dressings. The north-east corner features a round-headed doorway, and there are north-facing mullioned and transomed windows alongside a loggia to the south on blocked columns. The building has coped stacks and slate roofs.
Local climate
Comlongon Castle sits in a wetter-than-average part of the UK, with an average of 1,120 mm of rain a year. This makes it wetter than 88% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 80% of listed buildings.
It experiences an average of 44 freeze-thaw cycles a year, more than 85% of listed buildings. Of these, 21 follow at least 1 mm of rain in the preceding 48 hours. Average temperatures at this location have risen by 0.3°C per decade since 1991.
Averages for 1991–2020; temperature trend 1991–2025. Figures describe the wider area (a grid cell of roughly 10 km), not the individual site. Contains modified Copernicus Climate Change Service information 2026.
More on this building
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- No EPC on record for this property
- No sale records on file
- Related listed building consents — 3 applications
- Detailed attributes — period, style, materials, features
- Flood risk assessment
- Radon risk assessment
- Weather exposure and heating demand — rain and frost month by month and year by year, wind direction, solar and humidity
Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.
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