Monument to Evan Jones ('Ieuan Gwynedd') is a Grade II listed building in the Caerphilly local planning authority area, Wales. First listed on 25 May 1999. Monument. 1 related planning application.

Monument to Evan Jones ('Ieuan Gwynedd')

WRENN ID
strange-rotunda-torch
Grade
II
Local Planning Authority
Caerphilly
Constituency
Caerphilly MP: Chris Evans (Lab)
Country
Wales
Date first listed
25 May 1999
Type
Monument
Address
Monument to Evan Jones ('Ieuan Gwynedd'), Groeswen, Penyrheol, Trecenydd and Energlyn, CF15 7UT
OS grid reference
ST 127 869
Coordinates
51.57501, -3.26038
Source
Cadw listing

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

Description

This is a neo-classical monument, built to commemorate Evan Jones ('Ieuan Gwynedd'). It takes the form of a masonry obelisk, set upon a moulded plinth. The obelisk has a tall, square base that tapers upwards and features recessed panels and a frieze decorated with lotus and palmette motifs. A pronounced moulded cornice separates the base from the obelisk itself. An inscription dedicated to the Reverend Evan Jones is displayed on the front of the monument.

Local climate

Monument to Evan Jones ('Ieuan Gwynedd') 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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  • Full EPC report — heating system, energy costs, size, glazing, construction etc.
  • Sale history — 6 transactions since 1997
  • Related listed building consents — 1 application
  • 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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