Parapet/Boundary Walls on Port Lodge approach to Penrhyn Castle is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 2 August 1988. Boundary wall.

Parapet/Boundary Walls on Port Lodge approach to Penrhyn Castle

WRENN ID
last-tin-linden
Grade
II
Local Planning Authority
Gwynedd
Constituency
Bangor Aberconwy MP: Claire Hughes (Lab)
Country
Wales
Date first listed
2 August 1988
Type
Boundary wall
Address
Parapet/Boundary Walls on Port Lodge approach to Penrhyn Castle, Porth Penrhyn, Llandygai
OS grid reference
SH 592 725
Coordinates
53.23157, -4.11013
Source
Cadw listing

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

Description

The parapet and boundary walls on the approach to Penrhyn Castle are made of roughly coursed rubblestone and feature stone-on-edge coping with regularly spaced low piers. On the north side, the wall rises over a garden door and curves back to end in a large square pier next to Port House. To the south, the wall extends eastward from the bridge, concluding at a gate leading to a field on the south side of the road. The walls located to the west of the bridge are described under the Bangor community.

Local climate

Parapet/Boundary Walls on Port Lodge approach to Penrhyn Castle 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.

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Nearby listed buildings

  1. Hen Swyddfa'r Porthladd (Old Port Office) Grade II 38 m
  2. Pont Penrhyn (partly in Bangor community) Grade II 46 m
  3. Port Lodge Grade II 50 m
  4. Port House Grade II 54 m
  5. Penrhyn Estate Office Grade II 62 m
  6. The Cottage Grade II 72 m
  7. Penybryn Bridge, including railings & lamp standards Grade II 90 m
  8. Dockmaster's Office Grade II 145 m
  9. Penrhyn Bridge, including parapet walls on the approach road to Penrhyn Castle Port Grade II 152 m
  10. Former Stables at Plas y Coed Grade II 158 m