Former Corn Mill is a Grade II listed building in the Snowdonia National Park local planning authority area, Wales. First listed on 8 April 1997. Corn mill.

Former Corn Mill

WRENN ID
seventh-panel-wagtail
Grade
II
Local Planning Authority
Snowdonia National Park
Constituency
Bangor Aberconwy MP: Claire Hughes (Lab)
Country
Wales
Date first listed
8 April 1997
Type
Corn mill
Address
Former Corn Mill, Ysbyty Ifan, Conwy
OS grid reference
SH 841 488
Coordinates
53.02401, -3.72826
Source
Cadw listing

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

Description

The building is a former water-driven corn mill, dating from the 19th century. It is two stories tall and constructed of coursed, rough-dressed rubble, topped with a medium-pitched old slate roof. The entrance front, which faces northwest, is symmetrical with three bays. It features a central entrance with an original recessed, boarded stable door that has simple decorative iron hinges and a pegged wooden surround. On either side of the entrance are two square, 2-light boarded windows. The first floor has three equally spaced square windows with 20th-century 6-pane fixed glazing. The ground-floor openings are topped with large dressed slate lintels, which are recessed slightly below narrow returned labels.

On the southwest side, there is a large wheel pit that contains an external pitchback and an iron-rimmed waterwheel approximately 4 meters in diameter. The wooden struts and paddles are still present, but there is no visible foundry plate. To the left of the wheel pit is a 2-light shuttered window, and the upper floor has three windows similar to those on the first floor. Both gable ends feature entrances; the southwest entrance is raised and has external stepped access with a boarded door and a modern metal handrail. The northeast gable entrance is reached by two worn steps and retains its original boarded stable door and pegged frame, with a lintel similar to those on the ground floor. There is a small square vent-light at the apex of the gable.

Inside, most of the machinery is intact, although much of it was replaced in the late 19th century. This includes an iron toothed wheel and four pairs of stones, along with overhead shafting and wheels on the first floor. There is also a sack hoist and wooden stairs, with plain pine joists supporting the ceiling.

Local climate

Former Corn Mill sits in one of the wettest parts of the UK, with an average of 1,240 mm of rain a year. This makes it wetter than 92% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 84% of listed buildings.

It experiences an average of 48 freeze-thaw cycles a year, more than 89% of listed buildings. Of these, 29 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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