Boat-house at Craig-y-Don is a Grade II listed building in the Isle of Anglesey local planning authority area, Wales. First listed on 19 October 1988. Boat house.

Boat-house at Craig-y-Don

WRENN ID
waning-gutter-grove
Grade
II
Local Planning Authority
Isle of Anglesey
Constituency
Ynys Môn MP: Llinos Medi (PC)
Country
Wales
Date first listed
19 October 1988
Type
Boat house
Address
Boat-house at Craig-y-Don, Glyn Garth, Cwm Cadnant
OS grid reference
SH 566 731
Coordinates
53.23569, -4.14893
Source
Cadw listing

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

Description

The boat-house at Craig-y-Don is a two-storey structure made of rubble, built on a raised platform with sloping sides leading down to the water. It features a hipped slate roof with decorative cresting and wide boarded eaves. The main openings are adorned with Penmon stone dressings. On the northeast side, there are boarded double doors with a cambered head that open onto a slipway, which is accompanied by steps leading down to the water. The area above the broad doorway is louvred, as are all the openings on the two 'window' side facing southeast and the one 'window' side facing northwest.

Local climate

Boat-house at Craig-y-Don sits in one of the wettest parts of the UK, with an average of 1,210 mm of rain a year. This makes it wetter than 92% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 90% of listed buildings.

It experiences an average of 37 freeze-thaw cycles a year, more than 67% of listed buildings. Of these, 19 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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  • 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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