Monument to Thomas James Thomas and others is a Grade II listed building in the Caerphilly local planning authority area, Wales. First listed on 25 May 1999. Tomb.

Monument to Thomas James Thomas and others

WRENN ID
cold-baluster-dew
Grade
II
Local Planning Authority
Caerphilly
Constituency
Caerphilly MP: Chris Evans (Lab)
Country
Wales
Date first listed
25 May 1999
Type
Tomb
Address
Monument to Thomas James Thomas and others, Groeswen, Penyrheol, Trecenydd and Energlyn
OS grid reference
ST 127 869
Coordinates
51.57487, -3.25984
Source
Cadw listing

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

Description

The monument to Thomas James Thomas and others is a Grade II listed triple-stem tomb made of white granite, set within balustrading. It stands on a coursed masonry plinth that includes an entrance to a vault. The central stem is the tallest, featuring a square base with trefoil-headed blind arches supported by colonnettes with decorative capitals. It is topped with a high cornice that has a moulded round arch on each face, with urns at the corners. Above this is a draped urn with a wreath, positioned diagonally on a pedestal adorned with festoons.

The two flanking stems are simpler in design, each having a square base with an inscribed ogee arch on each face, low-relief foliage in the spandrels, and a deep moulded cornice above. Each flanking stem is capped with a short obelisk that bears a wreath and supports a plain urn. The balustrading features large shaped posts at the corners and in the center of the front and rear sides. Inscriptions can be found on the front face of each base.

Local climate

Monument to Thomas James Thomas and others sits in a wetter-than-average part of the UK, with an average of 1,120 mm of rain a year. This makes it wetter than 88% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 85% of listed buildings.

It experiences an average of 33 freeze-thaw cycles a year, fewer than 53% 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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  6. Hendredenny Hall Grade II 1.1 km
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