Garden Walls of Mounton House is a Grade II listed building in the Monmouthshire local planning authority area, Wales. First listed on 10 October 2000. Garden wall. 4 related planning applications.

Garden Walls of Mounton House

WRENN ID
sheer-beam-harvest
Grade
II
Local Planning Authority
Monmouthshire
Constituency
Monmouthshire MP: Catherine Fookes (Lab)
Country
Wales
Date first listed
10 October 2000
Type
Garden wall
Address
Garden Walls of Mounton House, Chepstow, Mathern
OS grid reference
ST 515 930
Coordinates
51.63384, -2.7018
Source
Cadw listing

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

Description

The garden walls of Mounton House are a significant feature, primarily along the entrance drive. The walls are constructed of square limestone rubble. They begin at the cottages and initially run behind the Parterre Garden and Orchard, with panelled sections highlighted by full-height buttresses that are set back, and finished with triangular coping. Further walling follows, interspersed with the gabled ends of buildings and gateways. The overall design evokes the approach to Barrington Court in Somerset, although the inspiration for the walls at Mounton appears to have come from the arrangement of barns at Markenfield in Yorkshire.

Local climate

Garden Walls of Mounton House receives an average of 830 mm of rain a year. This makes it wetter than 55% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 59% of listed buildings.

It experiences an average of 39 freeze-thaw cycles a year, more than 76% of listed buildings. Of these, 18 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 — 6 transactions since 2003
  • Related listed building consents — 4 applications
  • 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. Mounton House Cottages Grade II 22 m
  2. Mounton House Cottages Grade II 24 m
  3. Mounton House Cottages Grade II 25 m
  4. East Courtyard Buildings at Mounton House Grade II 80 m
  5. Teahouse in garden of Mounton House Grade II 105 m
  6. Vine Pergola in garden of Mounton House Grade II 121 m
  7. South Urn on Bowling Green of Mounton House Grade II 130 m
  8. Mounton House Grade II* 135 m
  9. North Pergola at Mounton House Grade II 162 m
  10. North Urn on Bowling Green of Mounton House Grade II 175 m