Glasshouse & Folly, Blackwood House is a Grade B listed building in the Dumfries and Galloway local planning authority area, Scotland. First listed on 26 June 1986.
Glasshouse & Folly, Blackwood House
- WRENN ID
- mired-loft-evening
- Grade
- B
- Local Planning Authority
- Dumfries and Galloway
- Constituency
- Dumfriesshire, Clydesdale and Tweeddale MP: David Mundell (Con)
- Country
- Scotland
- Date first listed
- 26 June 1986
- OS grid reference
- NX 908 871
- Coordinates
- 55.16629, -3.71535
- Source
- Historic Environment Scotland listing
Description
The site includes an extensive walled garden area situated to the north and east of Blackwood House. The principal enclosure is roughly quadrangular and adjoins the house, featuring a symmetrical range of glasshouses along the north wall. A further walled enclosure extends to the north, incorporating a castellated former battery on a bastion at the north corner. The high walls are constructed of rubble and have ashlar coping. Additional garden enclosures are found on the east bank of the Nith in Closeburn parish.
Local climate
Glasshouse & Folly, Blackwood House sits in one of the wettest parts of the UK, with an average of 1,330 mm of rain a year. This makes it wetter than 96% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 86% of listed buildings.
It experiences an average of 59 freeze-thaw cycles a year, more than 98% of listed buildings. Of these, 33 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
Sign in or create a free account to unlock:
- No EPC on record for this property
- No sale records on file
- No related consent applications matched
- 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.