Entrance gates and walls to Groes Hall is a Grade II listed building in the Conwy local planning authority area, Wales. First listed on 21 July 1999. Gate and wall.

Entrance gates and walls to Groes Hall

WRENN ID
sunken-stronghold-ash
Grade
II
Local Planning Authority
Conwy
Constituency
Bangor Aberconwy MP: Claire Hughes (Lab)
Country
Wales
Date first listed
21 July 1999
Type
Gate and wall
Address
Entrance gates and walls to Groes Hall, Llansannan
OS grid reference
SJ 010 648
Coordinates
53.17192, -3.4818
Source
Cadw listing

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

Description

The entrance gates and walls to Groes Hall date from the 19th century. The wide entrance gates are set back behind a rubble boundary wall. The gates and the flanking railings feature vertical rails topped with fleur de lys finials. The gates include a lock rail and a curving rail that rises towards the center. The rubble walls are topped with distinctive 'cock and hen' copings and end in square rubble piers.

Local climate

Entrance gates and walls to Groes Hall sits in a wetter-than-average part of the UK, with an average of 990 mm of rain a year. This makes it wetter than 79% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 50% of listed buildings.

It experiences an average of 28 freeze-thaw cycles a year, fewer than 69% of listed buildings. Of these, 15 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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  • No EPC on record for this property
  • No sale records on file
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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. Groes Hall Grade II 155 m
  2. Old cottage and smithy at Groes Hall Grade II 178 m
  3. Granary/cartshed, brewhouse and former kennels at Groes Hall Grade II 193 m
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  5. Cottages at Groes Hall Grade II 211 m
  6. Granary at Egryn Grade II 1.1 km
  7. Lofted cartshed, stable, brewhouse and pigsty range at Egryn Grade II 1.1 km
  8. Segrwyd Mill and Mill House Grade II 1.2 km
  9. Dr Johnson's Monument Grade II 2.0 km
  10. The Rectory Grade II 2.4 km