Hen-dy is a Grade II listed building in the Isle of Anglesey local planning authority area, Wales. First listed on 20 April 1998. Farmhouse.

Hen-dy

WRENN ID
lost-tower-thunder
Grade
II
Local Planning Authority
Isle of Anglesey
Constituency
Ynys Môn MP: Llinos Medi (PC)
Country
Wales
Date first listed
20 April 1998
Type
Farmhouse
Address
Hen-dy, Llanfair Pwllgwyngyll
OS grid reference
SH 540 725
Coordinates
53.22976, -4.18753
Source
Cadw listing

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

Description

Hen-dy is a two-storey, three-window farmhouse that is symmetrically planned with a central entrance on the southeast elevation. The walls are made of local stone rubble, and it has a slate roof with rendered gable end stacks. The farmhouse features 16-pane hornless sash windows that are slightly recessed, with plastered reveals, slate lintels, and slate sills. The front door is modern and has a rendered surround, replacing an earlier door that had a shallow rectangular fanlight, as shown in early 20th-century photographs. The rear of the building has modern windows.

The interior retains the original layout of two principal rooms with a central stairwell, along with some original details, including six-panel doors.

Local climate

Hen-dy 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 93% of listed buildings.

It experiences an average of 23 freeze-thaw cycles a year, fewer than 75% of listed buildings. Of these, 11 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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  • Weather exposure and heating demand — rain and frost month by month and year by year, wind direction, solar and humidity
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  2. Telford Milestone (21) Grade II 864 m
  3. Pen Parc Grade II 1.0 km
  4. Column Cottage Grade II 1.1 km
  5. Anglesey Column Grade II* 1.2 km
  6. Summerhouse at Y Graig Grade II 1.2 km
  7. Gate piers and gates at White Lodge Grade II 1.2 km
  8. White Lodge Grade II 1.2 km
  9. War Memorial, Church of St Tysilio Grade II 1.3 km
  10. Lion on E side of the N entrance to Britannia Bridge Grade II 1.3 km