Grotto in Wenvoe Castle Park is a Grade II listed building in the Vale of Glamorgan local planning authority area, Wales. First listed on 21 October 2002. Grotto.

Grotto in Wenvoe Castle Park

WRENN ID
woven-corner-holly
Grade
II
Local Planning Authority
Vale of Glamorgan
Constituency
Vale of Glamorgan MP: Kanishka Narayan (Lab)
Country
Wales
Date first listed
21 October 2002
Type
Grotto
Address
Grotto in Wenvoe Castle Park, Barry
OS grid reference
ST 117 709
Coordinates
51.43086, -3.27065
Source
Cadw listing

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

Description

The grotto in Wenvoe Castle Park is made of stone rubble with roughly dressed quoins and is partly covered by an earth mound. It features a chamber with a rusticated, roughly rendered interior, which is accessed through segmental arches at both the front and back. The structure has a stone vault.

Local climate

Grotto in Wenvoe Castle Park sits in a wetter-than-average part of the UK, with an average of 1,090 mm of rain a year. This makes it wetter than 87% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 92% of listed buildings.

It experiences an average of 17 freeze-thaw cycles a year, fewer than 83% of listed buildings. Of these, 6 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. Former coach-house and stables at Wenvoe Castle Grade II 422 m
  2. Former walled kitchen garden wall at Wenvoe Castle- W range Grade II 447 m
  3. Barn at Goldsland Farm Grade II 591 m
  4. Church of St Dyfan and St Teilo Grade II* 1.5 km
  5. The Old Rectory Grade II 1.7 km
  6. Church of St Mary Grade II* 1.8 km
  7. Telephone Call-box on Village Green Grade II 1.8 km
  8. Wenvoe War Memorial Grade II 1.9 km
  9. Church of St Cadoc Grade II* 2.0 km
  10. Cross in Churchyard at Church of St Cadoc Grade II 2.0 km