Dyffryn Elwy is a Grade II listed building in the Conwy local planning authority area, Wales. First listed on 22 July 1998. House.

Dyffryn Elwy

WRENN ID
stony-pewter-birch
Grade
II
Local Planning Authority
Conwy
Constituency
Bangor Aberconwy MP: Claire Hughes (Lab)
Country
Wales
Date first listed
22 July 1998
Type
House
Address
Dyffryn Elwy, Llanfair Talhaiarn
OS grid reference
SH 925 703
Coordinates
53.21957, -3.61092
Source
Cadw listing

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

Description

Dyffryn Elwy is a building constructed of rubble, featuring an original graded, shallow-pitched, hipped slate roof with lead flashings and overhanging eaves. It has two plain chimneys topped with simple cornicing and Victorian chimney pots. The facade has three bays with a raised ground floor and a central entrance. This entrance includes a single-storey flat-roofed porch, which is accessed by a flight of steps from the garden. The porch is supported by square corner posts and has a simple moulded entablature. The original six-panel door, with the lower two panels blind, is topped by a rectangular multi-pane fanlight. Both the ground and first floors have their original, slightly-recessed 12-pane unhorned sashes, which feature fanned slate-stone lintels and projecting sills.

At the rear, there is a lower, wide gabled service wing that has additional original 12-pane sashes, along with a later 19th-century four-pane sash on the west side. On the east side, there are 12-pane sashes on the first floor and later 19th-century paired four-pane sashes on the ground floor. A single-storey hipped-roofed modern extension is attached to the southeast. The interior was not inspected during the survey.

Local climate

Dyffryn Elwy sits in a wetter-than-average part of the UK, with an average of 1,010 mm of rain a year. This makes it wetter than 81% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 59% of listed buildings.

It experiences an average of 30 freeze-thaw cycles a year, fewer than 66% of listed buildings. Of these, 16 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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