Graigwen is a Grade II listed building in the Monmouthshire local planning authority area, Wales. First listed on 18 November 1980. Townhouse.

Graigwen

WRENN ID
tenth-mantel-ivy
Grade
II
Local Planning Authority
Monmouthshire
Constituency
Monmouthshire MP: Catherine Fookes (Lab)
Country
Wales
Date first listed
18 November 1980
Type
Townhouse
Address
Graigwen, Llangybi, Pontypool, NP15 1PA
OS grid reference
ST 372 966
Coordinates
51.66475, -2.90904
Source
Cadw listing

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

Description

Graigwen is a building that is completely rendered and painted, likely over local rubblestone, and features Welsh slate roofs. The original structure has two storeys, while a wing added to the right gable in 1874 has one storey. The building includes three regular cast iron casement windows with distinctive lattice-pattern glazing, each consisting of four lights. A ledged door, probably inserted in 1874, replaces three lights in the right-hand window. All windows have unmoulded dripstones. The roof has a low pitch with deep eaves and gable stacks, each topped with a single octagonal shaft. The left gable features a smaller window of the same type. The single-storey, gable-fronted wing on the right has one matching window and incised decoration on the gable, covering the gable end of the original building and likely its original entrance door. This wing also has a right-facing gable with a small window and the date 1874, along with a tall brick stack. The rear elevation was not seen.

The interior was not observed during the resurvey, but it likely originally contained a schoolroom on the lower level and accommodation for the teacher above. The light levels may be low, which is unusual for a school unless all the windows were replaced in 1894.

Local climate

Graigwen receives an average of 890 mm of rain a year. This makes it wetter than 66% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 66% of listed buildings.

It experiences an average of 41 freeze-thaw cycles a year, more than 78% 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

Sign in or create a free account to unlock:

  • No EPC on record for this property
  • Sale history — 2 transactions since 2002
  • No related consent applications matched
  • 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
Create free account

Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.

Similar buildings

The closest matches to this building from all 493,000 UK listed buildings, by architecture, period and materials.

Nearby listed buildings

  1. Walnut Tree Cottage Grade II 90 m
  2. The White Hart P.H. Grade II* 143 m
  3. Church of St Cybi Grade II* 200 m
  4. New House Grade II* 243 m
  5. Penarth House Grade II 332 m
  6. Tregrug Barn, including attached stable and cart-shed Grade II 486 m
  7. Tregrug Farmhouse Grade II 544 m
  8. South Stable Range at Llangybi Castle Farm Grade II 863 m
  9. North Stable Range at Llangybi Castle Farm Grade II 898 m
  10. Ton Farmhouse Grade II* 1.1 km