Ruins of barn at Llantarnam Abbey is a Grade II listed building in the Torfaen local planning authority area, Wales. First listed on 6 June 1962. Barn.

Ruins of barn at Llantarnam Abbey

WRENN ID
over-granite-grove
Grade
II
Local Planning Authority
Torfaen
Constituency
Torfaen MP: Nick Thomas-Symonds (Lab)
Country
Wales
Date first listed
6 June 1962
Type
Barn
Address
Ruins of barn at Llantarnam Abbey, Cwmbran
OS grid reference
ST 312 930
Coordinates
51.63172, -2.99534
Source
Cadw listing

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

Description

The ruins of a barn at Llantarnam Abbey feature rubble stone walls and no roof. The structure is roughly symmetrical, with full-height entrances situated between rows of five long ashlar ventilation loops, each topped with tiny arches. The central entrance is flanked by piers that have plinth mouldings. To the right, there is an added lean-to. The right gable end wall includes a 19th-century ashlar Tudor-arched large entry, with a long vent loop to the right. The left end wall has three loops: two above and one in the apex. The rear of the barn has two buttresses with flying arches to the left and two-step buttresses on either side of the entrance.

Inside, the barn is covered in ivy and is partly collapsing. There are remains of timber lintels over the loop reveals.

Local climate

Ruins of barn at Llantarnam Abbey receives an average of 930 mm of rain a year. This makes it wetter than 71% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 72% of listed buildings.

It experiences an average of 35 freeze-thaw cycles a year, more than 55% of listed buildings. Of these, 14 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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  1. The Cottage and attached walls of walled garden at Llantarnam Abbey Grade II 45 m
  2. Llantarnam Abbey Grade II* 116 m
  3. Forecourt walls and gates at Llantarnam Abbey Grade II 124 m
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  6. Two statues in garden to E of Llantarnam Abbey Grade II 194 m
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