The Plas is a Grade II listed building in the Snowdonia National Park local planning authority area, Wales. First listed on 21 June 2001. Inn. 3 related planning applications.

The Plas

WRENN ID
errant-cobalt-reed
Grade
II
Local Planning Authority
Snowdonia National Park
Constituency
Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
Country
Wales
Date first listed
21 June 2001
Type
Inn
Address
The Plas, Harlech, Gwynedd, LL46 2YA
OS grid reference
SH 581 310
Coordinates
52.85847, -4.10878
Source
Cadw listing

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

Description

The Plas is a three-storey former inn dating from the late Georgian period. It is constructed of local rubble, with a whitewashed facade, and has a hipped slate roof with tiled ridges and ashlar end chimneys featuring plain bands and capping. The front facade is asymmetrical, with a three-bay arrangement where the right-hand bay is set further back than the other two. A centrally positioned entrance has a recessed 20th-century multi-pane glazed door, protected by a semi-circular leaded wooden porch canopy. Contemporary semi-circular bow windows with flat leaded roofs and multi-pane glazing flank the ground floor entrance. Original sash windows with 16 panes on the first floor and 12 panes on the second floor remain, recessed within the facade and featuring projecting slate sills. A 20th-century sign is positioned centrally on the first floor, held by a scrolled iron bracket.

The rear facade overlooks a terraced area. A continuous, later 19th-century glazed verandah extends along the ground floor, incorporating sash windows and a central entrance with small-pane French doors and marginal glazing. The upper floors feature sash windows matching those on the front, alongside 20th-century slatted wooden external shutters. Further original sashes are present on the southwest side elevation.

Inside, there is a full-width room to the rear which opens onto the verandah. Simple 19th-century plaster cornicing remains, along with panelled window and entrance reveals and moulded architraves. The staircase, previously located on the left-hand side at the end of the entrance hall, has been removed.

Local climate

The Plas sits in one of the wettest parts of the UK, with an average of 1,490 mm of rain a year. This makes it wetter than 98% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 97% of listed buildings.

It experiences an average of 32 freeze-thaw cycles a year, fewer than 60% of listed buildings. Of these, 15 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.
  • Sale history — 4 transactions since 1998
  • Related listed building consents — 3 applications
  • 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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