Former Mill is a Grade II listed building in the Powys local planning authority area, Wales. First listed on 27 October 2010. Mill.

Former Mill

WRENN ID
ancient-gable-dust
Grade
II
Local Planning Authority
Powys
Constituency
Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
Country
Wales
Date first listed
27 October 2010
Type
Mill
Address
Former Mill, Llowes, Glasbury
OS grid reference
SO 191 417
Coordinates
52.06785, -3.18078
Source
Cadw listing

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

Description

This former water mill is built from rubble stone and features a partially replaced stone slate roof. It stands three storeys tall with a gabled design aligned northwest to southeast, and includes a single-storey lean-to extension to the south.

The main elevation faces southeast and has a double door at the ground floor, a single loading door above, and a small window in the gable. The extension has an additional wide door. The southwest elevation of the lean-to displays one shuttered window and one blocked door, while the rest of this elevation is set into the rising ground, above which is the former mill pond. This side has two windows: a leaded casement on the left and a shuttered opening on the right. The northwest elevation contains the wheel-shaft and the wheel-pit below, featuring a shuttered opening on the first floor and a casement on the second floor. The control mechanism for the sluice gate is also visible here.

The main water wheel is partially intact and is a mixed iron and timber overshot wheel constructed in the rare "clasp-arm" style, with the iron reportedly cast in Brecon.

Inside, the mill has three floors with a straight flight of stairs against the southwest wall of the main building. It retains timber beams, joists, and floorboards. The machinery, which is of standard type, remains largely intact and includes two pairs of under driven stones on the ground floor, along with a flour dresser and a small cleaner.

Local climate

Former Mill receives an average of 950 mm of rain a year. This makes it wetter than 74% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 58% of listed buildings.

It experiences an average of 51 freeze-thaw cycles a year, more than 92% 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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  • No EPC on record for this property
  • Sale history — 2 transactions since 1999
  • 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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