Carreg Frau is a Grade II listed building in the Conwy local planning authority area, Wales. First listed on 14 April 1992. Viaduct.

Carreg Frau

WRENN ID
scattered-spindle-solstice
Grade
II
Local Planning Authority
Conwy
Constituency
Bangor Aberconwy MP: Claire Hughes (Lab)
Country
Wales
Date first listed
14 April 1992
Type
Viaduct
Address
Carreg Frau, 16 the Close, Llanfairfechan, LL33 0AG
OS grid reference
SH 684 747
Coordinates
53.25317, -3.97258
Source
Cadw listing

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

Description

Carreg Frau is a two-storey house that has been extended to the right (west). The exterior features rough cast render, which is now painted white. The roof is made of graded courses of small grey and russet slates sourced from Gallt y Llan quarry in Snowdon, while the roof of the extension has grey graded slates. There are two groups of chimneys made of brown brick, each featuring a taller stack on the ridge and two lower stepped stacks. Most of the windows are modern replacements.

The front elevation includes a wall that rises into three gabled dormers, originally two, each with a small pane replacement window beneath a drip mould. The roof overhangs the front wall on corbels but is flush at the gable ends of the house. The roof slopes down to the right over a porch, which has a hipped roof to the left supported by a wooden post. There is a small pane window in the porch and another in the ground floor of the extension to the right of the porch. To the left of the porch, there is one smaller window and two larger windows, all featuring drip moulds. The left (west) elevation has a small pane metal casement window on the first floor, also with a drip mould above it. On the ground floor, there is a semi-hexagonal bay with a small slate roof and small pane metal casement windows.

Local climate

Carreg Frau sits in one of the wettest parts of the UK, with an average of 1,190 mm of rain a year. This makes it wetter than 91% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 86% of listed buildings.

It experiences an average of 38 freeze-thaw cycles a year, more than 73% 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.

More on this building

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