Porth Hir is a Grade II listed building in the Isle of Anglesey local planning authority area, Wales. First listed on 23 September 1950. Church.

Porth Hir

WRENN ID
still-spindle-laurel
Grade
II
Local Planning Authority
Isle of Anglesey
Constituency
Ynys Môn MP: Llinos Medi (PC)
Country
Wales
Date first listed
23 September 1950
Type
Church
Address
Porth Hir, Beaumaris, LL58 8BH
OS grid reference
SH 601 759
Coordinates
53.26178, -4.09776
Source
Cadw listing

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

Description

Porth Hir is a 1½-storey house featuring whitened pebble-dashed walls, a renewed steep slate roof, and pebble-dashed end stacks. The front has a central panelled door with glazed panels, and to the left, there is a second door with glazed panels above fielded panels at the base, which has '1605' painted above it. To the right of the center is a narrow casement window, and further right, beyond a wooden veranda, is a 2-light window with a top-hung casement. The wooden veranda includes a balcony, although the balustrade has been removed. It is supported by posts and a single pebble-dashed pier. The house also features three half dormers with hipped roofs and replacement windows.

To the left, there is a 2-storey wing that is set forward. This wing also has pebble-dashed walls and a renewed slate roof that is hipped to the rear, with a central pebble-dashed stack. The gable end of the wing has a doorway to the right, which includes a panelled door with glazed panels and is sheltered by a bracketed gabled canopy. To the left of this door are replacement 2-light windows with wooden shutters on each storey. The left side wall has a replacement 2-light window in each storey at the left end, with the upper storey window being larger. The rear side facing Bryn Lane is made of whitened rubble stone and features a boarded door and a small window to the left. In the upper storey, there is a 2-light small-pane casement above the door, along with a small replacement window to the left. The rear of the main range is also constructed of whitened rubble stone and includes a central stair window, small replacement windows to the right and left, and two skylights. The property has not been inspected.

Local climate

Porth Hir 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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  • Full EPC report — heating system, energy costs, size, glazing, construction etc.
  • Sale history — 3 transactions since 1995
  • No related consent applications matched
  • 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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  6. Dwyfor Cottage Grade II 87 m
  7. Doorway at entrance to the Orchard Grade II 87 m
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  9. Garden wall on W and N sides of The Orchard and The Hermitage Grade II 92 m
  10. Outbuilding at entrance to the Orchard Grade II 93 m