Hen-Ddol Farmhouse including attached Outbuilding to N Ffordd Henddol is a Grade II listed building in the Snowdonia National Park local planning authority area, Wales. First listed on 1 February 1995. Farmhouse.

Hen-Ddol Farmhouse including attached Outbuilding to N Ffordd Henddol

WRENN ID
late-screen-twilight
Grade
II
Local Planning Authority
Snowdonia National Park
Constituency
Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
Country
Wales
Date first listed
1 February 1995
Type
Farmhouse
Address
Hen-Ddol Farmhouse including attached Outbuilding to N Ffordd Henddol, Arthog, Gwynedd
OS grid reference
SH 618 123
Coordinates
52.69111, -4.04605
Source
Cadw listing

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

Description

Hen-Ddol Farmhouse, dating from the 19th century, is a one-and-a-half storey building featuring a three-window front. It is constructed of whitened rubble and topped with a slate roof. The gable ends have parapets with overlapping slate coping, and the end chimneys have weather coursing, with the right chimney projecting slightly and featuring a wide gable. The entrance is near the centre and consists of a slightly recessed boarded door, flanked by modern six-pane casement windows. Above, there are similar four-pane casement windows set within rubble gabled dormers that break the eaves. A modern skylight is present on the rear roof pitch, along with a later catslide rubble extension.

Attached to the left and slightly lower is a near-contemporary single-storey rubble byre, which has an old slate roof on the front and a corrugated iron roof on the rear pitch. The entrance is off-centre on the right, featuring a projecting slate lintel and a 20th-century boarded door, with a vertical ventilation slit to the left. There is also a later rubble extension that is advanced to the left and stepped down, covered with a corrugated iron roof.

It was not possible to inspect the interior.

Local climate

Hen-Ddol Farmhouse including attached Outbuilding to N Ffordd Henddol sits in one of the wettest parts of the UK, with an average of 1,390 mm of rain a year. This makes it wetter than 97% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 95% of listed buildings.

It experiences an average of 28 freeze-thaw cycles a year, fewer than 69% of listed buildings. Of these, 13 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
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  • Radon risk assessment
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