Inner arched entrance to courtyard between Palm House and Workshops is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 8 September 1998. Entrance.

Inner arched entrance to courtyard between Palm House and Workshops

WRENN ID
moated-pediment-lichen
Grade
II
Local Planning Authority
Gwynedd
Constituency
Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
Country
Wales
Date first listed
8 September 1998
Type
Entrance
Address
Inner arched entrance to courtyard between Palm House and Workshops, Glynllifon, Llandwrog
OS grid reference
SH 455 554
Coordinates
53.07352, -4.30684
Source
Cadw listing

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

Description

This structure is a short section of rubble wall that closes off a small courtyard located between the Palm House and the Workshops. It features a pointed arched entrance made with brick voussoirs, along with iron gates and a large draped urn finial at the top. On the inner (north) side, there is a smaller archway that leads into potting sheds.

Local climate

Inner arched entrance to courtyard between Palm House and Workshops sits in one of the wettest parts of the UK, with an average of 1,370 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 98% of listed buildings.

It experiences an average of 20 freeze-thaw cycles a year, fewer than 78% of listed buildings. Of these, 9 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
  • 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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Nearby listed buildings

  1. Palm House including former Eagle House Grade II 16 m
  2. Eastern Walled Kitchen Garden Grade II 19 m
  3. Gardener's Cottage and attached archway to south of Kitchen Gardens Grade II 30 m
  4. Machinery Workshops to north-west of Stables at Glynllifon Grade II 33 m
  5. Footbridge over service drive to west of Glynllifon House Grade II 35 m
  6. Rubble-walled trackway to north of service drive to west of Glynllifon House Grade II 36 m
  7. Rubble-walled rear service drive to west of Glynllifon House Grade II 46 m
  8. Stable Courtyard at Glynllifon Grade II* 48 m
  9. Workshops Grade II 60 m
  10. Fountain Pool to east of Stable Courtyard Grade II 74 m