Pentref-y-Groes is a Grade II listed building in the Caerphilly local planning authority area, Wales. First listed on 29 January 1999. Farmhouse.

Pentref-y-Groes

WRENN ID
rough-foundation-solstice
Grade
II
Local Planning Authority
Caerphilly
Constituency
Newport West and Islwyn MP: Ruth Jones (Lab)
Country
Wales
Date first listed
29 January 1999
Type
Farmhouse
Address
Pentref-y-Groes, Croespenmaen, Crumlin
OS grid reference
ST 196 980
Coordinates
51.67536, -3.16408
Source
Cadw listing

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

Description

Pentref-y-Groes is a small farmhouse constructed from limewashed stone rubble, featuring a replaced tile roof with skylights and replaced ridge stacks. The building includes a former lower byre range and a later unit, likely a stable, which has now been incorporated into the house. It stands two storeys tall. The front entrance is obscured by a later lean-to but features a wide doorway with a deep timber lintel. To the left of the entrance are two original window openings with stone sills; one serves the stairs, while a large inserted window is located to the right. At the rear, there is a lean-to porch attached to a cross passage doorway, with similar windows under hoods on the rear right. Former granary steps lead to the left end unit.

Inside, the main room retains chamfered and stopped beams and closely set chamfered and stopped joists, along with an open fireplace. A winding staircase is located beside the fireplace, and there is a fine post and panel screen featuring four-centred arched openings on each side. An arched doorway also leads to the former cross passage.

Local climate

Pentref-y-Groes 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 79% of listed buildings.

It experiences an average of 44 freeze-thaw cycles a year, more than 85% of listed buildings. Of these, 21 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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Nearby listed buildings

  1. Barn and byre range at Pen-y-groes 3 Grade II 13 m
  2. Penrhiwlas Grade II 507 m
  3. Former Barn at Croespenmaen Grade II 559 m
  4. Cyncoed Farm Cottage Grade II 645 m
  5. Pentwyn-isaf Grade II 932 m
  6. The Oakdale Public House Grade II 1.0 km
  7. Oakdale Hospital Grade II 1.3 km
  8. Wall, railings and gates at Oakdale Hospital Grade II 1.3 km
  9. Penmaen House Grade II 1.4 km
  10. Cwmdows Farmhouse Grade II* 1.4 km