Terrace Wall at Borthwnog Hall Hotel is a Grade II listed building in the Snowdonia National Park local planning authority area, Wales. First listed on 20 July 1995. Dwelling.

Terrace Wall at Borthwnog Hall Hotel

WRENN ID
haunted-forge-barley
Grade
II
Local Planning Authority
Snowdonia National Park
Constituency
Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
Country
Wales
Date first listed
20 July 1995
Type
Dwelling
Address
Terrace Wall at Borthwnog Hall Hotel, Taichyheaf, Llanelltyd, Gwynedd
OS grid reference
SH 686 190
Coordinates
52.75295, -3.9473
Source
Cadw listing

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

Description

The terrace wall at Borthwnog Hall Hotel is a dwarf wall built around 1800. It is constructed of rubble and faced with coursed sandstone blocks, topped with dressed slate coping. This wall serves as a sea wall and is approximately 1.5 meters high on the estuary side, where it has a rubble plinth, and 0.6 meters high on the house side. To the west, the foundations are made of rock. The wall rises up an incline to the west and features a semi-circular curve at its end. It extends eastward for about 137 meters, where it is interrupted by a modern 12-meter car-parking bay. Further east, there is a short break after 15 meters, allowing pedestrian access to the estuary. The wall continues for another 183 meters, ending at the top of the drive in a gentle curve.

Local climate

Terrace Wall at Borthwnog Hall Hotel sits in one of the wettest parts of the UK, with an average of 1,360 mm of rain a year. This makes it wetter than 96% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 94% of listed buildings.

It experiences an average of 39 freeze-thaw cycles a year, more than 74% of listed buildings. Of these, 21 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.

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