Red House is a Grade II listed building in the Powys local planning authority area, Wales. First listed on 18 July 1949. Mill.

Red House

WRENN ID
tilted-gargoyle-ebony
Grade
II
Local Planning Authority
Powys
Constituency
Montgomeryshire and Glyndwr MP: Steve Witherden (Lab)
Country
Wales
Date first listed
18 July 1949
Type
Mill
Address
Red House, Cilcowen, Newtown and Llanllwchaiarn
OS grid reference
SO 105 949
Coordinates
52.54463, -3.3205
Source
Cadw listing

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

Description

Red House is a one and a half storey building with close studding up to the loft level and square panels above. The garden front features a small 19th-century gabled dormer that replaces an original 17th-century one. The building has been extended by one bay to the west, maintaining the close studding. A large contemporary timber-framed gabled dormer with a four-light casement window is present. The west end wall is constructed of late 19th-century brick and includes a chimney. The ground floor has 19th-century casement windows, and there is a blocked 17th-century window in the later bay. The roof is covered with late 19th-century red tiles, hipped to the west, and features fishscale bands, terracotta gable finials, and bargeboards. A contemporary chimney with triple flues is also present.

The late 17th-century crosswing has close studding, a mid-rail, and corner braces. It is a double pile on the north side and has been re-fronted in brick on the south. The east elevation has two windows, with two-light cross windows on the first floor and a three-light transomed window to the left on the ground floor, alongside a cross window to the right. A 19th-century lean-to porch with a gablet and a panelled door is located at the centre. The north side features 19th-century fenestration that replaces the original symmetrical 17th-century tiers. The roofs are gabled with red tiles, and there is a brick stack with twin flues. A lean-to porch is inset at the angle on the rear.

Inside, there is an early 18th-century staircase with turned balusters.

Local climate

Red House sits in a wetter-than-average part of the UK, with an average of 1,010 mm of rain a year. This makes it wetter than 81% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 73% of listed buildings.

It experiences an average of 47 freeze-thaw cycles a year, more than 88% of listed buildings. Of these, 27 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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  • No EPC on record for this property
  • Sale history — 1 transaction since 2022
  • 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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