The Mill House is a Grade II listed building in the Cardiff local planning authority area, Wales. First listed on 17 March 1987. House.

The Mill House

WRENN ID
grey-mullion-sparrow
Grade
II
Local Planning Authority
Cardiff
Constituency
Cardiff West MP: Mr Alex Barros-Curtis (Lab)
Country
Wales
Date first listed
17 March 1987
Type
House
Address
The Mill House, Pontcanna Fields, Pontcanna
OS grid reference
ST 163 780
Coordinates
51.49535, -3.20614
Source
Cadw listing

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

Description

The Mill House is a late Georgian building constructed with random rubble facings, featuring block quoins and voussoir lintels, as well as jutting stone cills. It has a pitched slate roof without verges, a tiled ridge, and rubble end stacks. The house is a simple two-storey structure with a three-window south front. It includes 16-pane sash windows set in wide timber frames, an arched central doorway with a plain fanlight and jambs, and a boarded door. There is an attic window on the west gable, while the ground floor openings have been modernised, including a doorway in a high outshot that connects to The Mill Cottage (formerly No 1 Upper Mill Cottages) at the rear. The east gable is similar, with a modern garden room added at the rear in 1995. The rear elevation had wooden casement windows at the time of listing, but these were not seen during the resurvey in 2001.

At the time of listing in 1987, the interior was simple and had been subdivided into two cottages, with No 2 located along the west side. A central hallway provided access to No 3, leading to the main timber dogleg staircase, which could be reached under a depressed arch with double 2-panel doors. The interior was not available during the resurvey, but it has since been converted back into a single house with the usual repairs and modernisation.

Local climate

The Mill House sits in a wetter-than-average part of the UK, with an average of 1,080 mm of rain a year. This makes it wetter than 86% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 87% of listed buildings.

It experiences an average of 22 freeze-thaw cycles a year, fewer than 77% of listed buildings. Of these, 8 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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