Demesnes Mill is a Grade II listed building in the County Durham local planning authority area, England. First listed on 22 February 1973. Former mill, now house. 4 related planning applications.
Demesnes Mill
- WRENN ID
- muted-fireplace-wagtail
- Grade
- II
- Local Planning Authority
- County Durham
- Constituency
- Bishop Auckland MP: Dr Sam Rushworth (Lab)
- Country
- England
- Date first listed
- 22 February 1973
- Type
- Former mill, now house
- Address
- Demesnes Mill, Gray Lane, Barnard Castle, DL12 8PE
- OS grid reference
- NZ 053 158
- Coordinates
- 54.53823, -1.91949
- Source
- Historic England listing
Description
Demesnes Mill is a former water-powered corn mill, now converted into a house. It dates from the early 19th century and has undergone some alterations in the late 20th century. The mill was built for the Raby Castle Estate and features a construction of rubble with ashlar quoins and dressings. The roof is covered with graduated stone slates and includes iron gable cramps and a rubble chimney.
The building is three stories tall with a three-window range facing the river and two stories facing the lane. The river frontage has irregular fenestration, featuring a straight-pointed arch on the left over the mill race, flat stone lintels above a six-pane fixed light on the right, a renewed fixed light on the first floor, and sash windows on the second floor. The roof has a small square chimney at the left end.
On the left return gable, there is a renewed wide two-leaf door on the left with alternate block jambs and a flat stone lintel, along with a late 20th-century conservatory on the right. Small fixed lights are present on the floor above and in the gable peak, and the corner is corbelled out over a curved angle towards the lane.
Inside, the first floor features two millstones, and below, there are undershot water wheels with wooden cogs.
Local climate
Demesnes Mill receives an average of 950 mm of rain a year. This makes it wetter than 73% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 53% of listed buildings.
It experiences an average of 54 freeze-thaw cycles a year, more than 95% of listed buildings. Of these, 34 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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- Full EPC report — heating system, energy costs, size, glazing, construction etc.
- No sale records on file
- Related listed building consents — 4 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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