Mill house at Felin Gafnan is a Grade II listed building in the Isle of Anglesey local planning authority area, Wales. First listed on 27 November 2000. House.

Mill house at Felin Gafnan

WRENN ID
long-hammer-grain
Grade
II
Local Planning Authority
Isle of Anglesey
Constituency
Ynys Môn MP: Llinos Medi (PC)
Country
Wales
Date first listed
27 November 2000
Type
House
Address
Mill house at Felin Gafnan, Cemlyn, Cylch-Y-Garn
OS grid reference
SH 343 932
Coordinates
53.41042, -4.49375
Source
Cadw listing

Also on this page: flood risk · radon risk · weather exposure · detailed attributes ↓

Description

The mill house at Felin Gafnan is a 2-storey building featuring a 2-window range, with a lofted kitchen attached to the left side. The exterior has rough rendered walls and modern slate roofs, complemented by rendered gable end stacks. The main entrance consists of a central boarded door, flanked by 12-pane hornless sash windows, with the first-floor windows positioned under the eaves. The right gable includes windows on both the ground and first floors. At the rear, there is a central 12-pane sash stair window, along with a similar window on the ground floor to the left, and a smaller 4-pane sash window also to the left on the ground floor. To the right of the stair window on the first floor, there is a shorter 9-pane sash window that has a 3-pane sliding upper light.

Attached to the left of the house is a kitchen range with a single window and a squat gable end chimney, featuring a small 4-pane sash window at the front. The rear pitch has a modern rooflight, and there is a catslide roof over a lean-to porch, which has a boarded door and a 4-pane sash window to the right. In front of the house, there is a low stone-walled garden. The interior was not inspected during the survey.

Local climate

Mill house at Felin Gafnan sits in a wetter-than-average part of the UK, with an average of 1,040 mm of rain a year. This makes it wetter than 83% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 95% of listed buildings.

It experiences an average of 4 freeze-thaw cycles a year, fewer than 98% 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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  • 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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  1. Corn drying house at Felin Gafnan Grade II 40 m
  2. Corn Mill at Felin Gafnan Grade II* 145 m
  3. Farmhouse at Plas Cemlyn with curved walling to north and wall incorporating goose pens to south Grade II 1.3 km
  4. Old farmhouse at Plas Cemlyn Grade II 1.3 km
  5. Agricultural range at Plas Cemlyn Grade II 1.3 km
  6. Hammels at Plas Cemlyn Grade II 1.4 km
  7. Melin Cefn Coch Grade II 1.9 km
  8. Lychgate at Church of St Rhwydrys Grade II 2.1 km
  9. Church of St Rhwydrys Grade II* 2.1 km
  10. Cemaes Mill Grade II 2.4 km