Trefriw Hall is a Grade II listed building in the Conwy local planning authority area, Wales. First listed on 30 May 1996. Dwelling.

Trefriw Hall

WRENN ID
last-chalk-sunrise
Grade
II
Local Planning Authority
Conwy
Constituency
Bangor Aberconwy MP: Claire Hughes (Lab)
Country
Wales
Date first listed
30 May 1996
Type
Dwelling
OS grid reference
SH 781 631
Coordinates
53.15156, -3.82423
Source
Cadw listing

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

Description

Trefriw Hall is an early 19th-century village hall designed in a restrained classical style, featuring pedimented ends. The building is constructed of rubble on a narrow plinth, with slate-stone and sandstone dressings, and has a shallow-pitched slate roof. It has a heavy entablature and quoins made of dressed slate, with the entablature consisting of three tiers that return to create eaves decoration on the sides.

On the long eastern and western sides, there are three tall, 24-pane recessed sash windows with plain projecting architraves and projecting compound keystones made of sandstone, which are set above a broader slate-stone section underneath. A plain cill-band wraps around the northern and southern ends. Modern entrances have been added below the southern-most windows on both sides, featuring deeply recessed part-glazed doors.

The symmetrical northern entrance front has two similar windows flanking a central entrance, which currently has a boarded upper section. Attached to the entrance facade is a slightly narrower, low, single-storey modern extension that is out of character with the original building and has a flat roof. There is also a further modern extension at the rear with a central entrance. The interior was not accessible during the inspection in February 1996.

Local climate

Trefriw Hall sits in a wetter-than-average part of the UK, with an average of 1,100 mm of rain a year. This makes it wetter than 87% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 76% of listed buildings.

It experiences an average of 34 freeze-thaw cycles a year, fewer than 51% of listed buildings. Of these, 18 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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