St Illtyd’s Church is a Grade II* listed building in the Blaenau Gwent local planning authority area, Wales. First listed on 6 June 1962. Industrial.

St Illtyd’s Church

WRENN ID
empty-grate-curlew
Grade
II*
Local Planning Authority
Blaenau Gwent
Constituency
Blaenau Gwent and Rhymney MP: Nick Smith (Lab)
Country
Wales
Date first listed
6 June 1962
Type
Industrial
Address
St Illtyd’s Church, Llanhilleth
OS grid reference
SO 217 019
Coordinates
51.71088, -3.13325
Source
Cadw listing

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

Description

St Illtyd’s Church is a Grade II* listed building featuring rubble construction and stone-tiled roofs. The church has plain coped parapets, including a saddleback tower. Its layout consists of a nave, a lower chancel, and a saddleback west tower. The tower has a slight step approximately halfway up and a plain plinth. The west door is pointed and chamfered, adorned with broach stops, and features a boarded door with decorative iron foliage hinges. There are small belfry loops present.

On the south elevation of the nave, there are two Bathstone windows dating from 1888 to 1891, each with three cinquefoiled lights and straight heads. To the right of the westernmost window, there is an arc-shaped crease in the masonry, which may indicate a repair, a 19th-century flue, or the remnants of a former south aisle. The south side of the chancel has a priest’s door with a restored voussoired round-arched head and a boarded door. The upper courses of masonry jetty towards the eastern end, possibly indicating earlier medieval stonework beneath. The east window, also from 1888 to 1891, features a four-centred three-light design. The north sides of both the nave and chancel are windowless.

Inside, the nave and chancel have barrel roofs with moulded and chamfered oak ribs and plaster panels. There are inserted oak tie-beams and thick oak wallplates with arris-mouldings, while the walls are plastered. The chancel arch is crudely voussoired, chamfered, and slightly pointed. An eroded medieval font with a square bowl sits on a square-section pedestal. There is a late 19th-century Tudor-arched piscina. The pews, reset along the long sides of the nave from 1888 to 1891, feature poppy-head finials. Notable provincial neo-classical monuments include those for Anne Lewis (died 1773), Richard Jenkins (died 1776), William Miles (died 1808), and Joseph Needham (died 1819), each with distinctive inscriptions and decorative elements.

Local climate

St Illtyd’s Church sits in a wetter-than-average part of the UK, with an average of 1,020 mm of rain a year. This makes it wetter than 81% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 75% of listed buildings.

It experiences an average of 43 freeze-thaw cycles a year, more than 81% of listed buildings. Of these, 20 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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  • No EPC on record for this property
  • Sale history — 1 transaction since 1997
  • 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
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