Dell Mill, Lewis is a Grade B listed building in the Na h-Eileanan Siar local planning authority area, Scotland. First listed on 27 February 1978.
Dell Mill, Lewis
- WRENN ID
- slow-pinnacle-crag
- Grade
- B
- Local Planning Authority
- Na h-Eileanan Siar
- Constituency
- Na h-Eileanan an Iar MP: Torcuil Crichton (Lab)
- Country
- Scotland
- Date first listed
- 27 February 1978
- OS grid reference
- NB 491 613
- Coordinates
- 58.46823, -6.30408
- Source
- Historic Environment Scotland listing
Description
Dell Mill is a mid-19th century farm steading, incorporating a large all-iron internal water wheel used to power a threshing mill. The steading likely comprises several phases of construction, principally consisting of three linked long rectangular ranges. Two ranges share a common gable, with the mill range being the one closest to the north. The range nearest the south is fronted by a third range, and short linking ranges connect the buildings at either end. The entire steading is constructed of rubble stone with slated roofs, and is single-storey with lofts.
The mill range has windows at ground and loft level, featuring small-paned glazing. West-facing timber-lintelled openings are present to the right, with one occupied by the water wheel. A lade (water channel) is brought in from the east and carried on a rubble aqueduct. J Hume’s Industrial Archaeology, vol II, 1976, p298, provides further details. The building is known locally as Dell, Muihleann Nis (Mill).
Local climate
Dell Mill, Lewis sits in one of the wettest parts of the UK, with an average of 1,270 mm of rain a year. This makes it wetter than 94% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 98% of listed buildings.
It experiences an average of 3 freeze-thaw cycles a year, fewer than 99% of listed buildings. Of these, 2 follow at least 1 mm of rain in the preceding 48 hours. Average temperatures at this location have risen by 0.2°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
- 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
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