Brewhouse and Piggeries at Plas Harri is a Grade II listed building in the Conwy local planning authority area, Wales. First listed on 15 May 1998. House. 1 related planning application.

Brewhouse and Piggeries at Plas Harri

WRENN ID
proud-turret-bone
Grade
II
Local Planning Authority
Conwy
Constituency
Bangor Aberconwy MP: Claire Hughes (Lab)
Country
Wales
Date first listed
15 May 1998
Type
House
Address
Brewhouse and Piggeries at Plas Harri, Llannefydd, LL16 5EL
OS grid reference
SH 962 707
Coordinates
53.22375, -3.55494
Source
Cadw listing

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

Description

The Brewhouse and Piggeries at Plas Harri is a small rectangular vernacular brewhouse, likely built around the same time as Plas Harri, which dates to 1764. It features adjoining 19th-century piggeries. The structure is made of local rubble and has a small slate roof with a tiled ridge. The farm-facing gable has superimposed slate-slab copings, a boarded entrance with an exposed oak lintel, and to the right, a very small contemporary window with a pegged frame and boarded shutter. There is a squat chimney on the road-facing gable (east) with plain capping. On the south side, there is an entrance with a boarded stable door to the right, featuring a large projecting stone lintel, and to the left, there is another small square boarded window.

Attached to the former brewhouse on the south is a later two-bay pig-sty block made of rubble with a slated roof, where the north pitch is longer than the south. This block has two plain entrances leading to paired sties, with rubble-walled open pens in front, separated by another rubble wall. The north roof pitch includes two sections of corrugated plastic.

Inside the brewhouse, there is a single bay with a large staged end stack of inglenook type.

Local climate

Brewhouse and Piggeries at Plas Harri 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 59% of listed buildings.

It experiences an average of 30 freeze-thaw cycles a year, fewer than 66% of listed buildings. Of these, 16 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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  • Full EPC report — heating system, energy costs, size, glazing, construction etc.
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  • Related listed building consents — 1 application
  • 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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Nearby listed buildings

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  2. Pont-yr-Aled (partly in Llannefydd community) Grade II 809 m
  3. Barn Range at Plas Uchaf Grade II 936 m
  4. Pont-y-Gwyddel (partly in Llannefydd community) Grade II 1.5 km
  5. Pont Meredydd (partly in Llannefydd community) Grade II 1.5 km
  6. Plas Isaf Grade II 1.8 km
  7. Former Domestic Range at Plas Isaf Grade II 1.8 km
  8. Sundial and base at the Church of St Nefydd and St Mary Grade II 1.9 km
  9. Bier-house at the Church of St Nefydd and St Mary Grade II 1.9 km
  10. Pont-y-ddol (partly in Cefnmeiriadog community) Grade II 2.9 km