Mill House is a Grade II listed building in the Wrexham local planning authority area, Wales. First listed on 3 December 1996. House with attached former watermill.

Mill House

WRENN ID
forbidden-groin-briar
Grade
II
Local Planning Authority
Wrexham
Constituency
Wrexham MP: Andrew Ranger (Lab)
Country
Wales
Date first listed
3 December 1996
Type
House with attached former watermill
Address
Mill House, Marchwiel Hall, Marchwiel
OS grid reference
SJ 340 482
Coordinates
53.02768, -2.98462
Source
Cadw listing

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

Description

Mill House is a house with an attached former watermill located to the north. It is a single-storey building with an attic, constructed of white-painted brick featuring mock timber framing and a dentil cornice, topped with a renewed Welsh slate roof. The house has a red brick central stack with three diagonally set chimneys. The west elevation showcases two cast-iron lozenge-patterned windows on the ground floor. A decorative wooden string course runs along the attic storey, displaying a dentil pattern and a central section carved with foliage and flowers, which includes the inscription "TM. AMM 1840." The attic storey features a jettied dormer window, which is topped with a carved wooden finial.

On the south elevation, there is the original entrance door, painted black and white, which is a wooden panelled door adorned with a decorative iron strap hinge. The wooden door jambs and lintel are ornately carved with foliage and flowers. The former watermill is constructed of brick and includes a wheel pit. Inside the house, there is a simple fireplace with a small built-in range, but there is no evidence of machinery in the former watermill.

Local climate

Mill House receives an average of 850 mm of rain a year. This makes it wetter than 59% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 92% of listed buildings.

It experiences an average of 37 freeze-thaw cycles a year, more than 70% of listed buildings. Of these, 20 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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