Former Colliery Workmen’s Institute is a Grade II listed building in the Blaenau Gwent local planning authority area, Wales. First listed on 26 November 1999. Institute. 3 related planning applications.

Former Colliery Workmen’s Institute

WRENN ID
shifting-soffit-evening
Grade
II
Local Planning Authority
Blaenau Gwent
Constituency
Blaenau Gwent and Rhymney MP: Nick Smith (Lab)
Country
Wales
Date first listed
26 November 1999
Type
Institute
Address
Former Colliery Workmen’s Institute, Llanhilleth, NP13 2JH
OS grid reference
SO 217 006
Coordinates
51.69944, -3.13433
Source
Cadw listing

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

Description

The Former Colliery Workmen’s Institute is a building designed in a simplified Dutch style, constructed from grey Pennant stone with significant red brick detailing. It features a slate roof with two large ventilators at the ridge. The eastern end has a gable chimney made of red brick, along with a low stack on the southern side. This two-storey structure is set on a high basement.

The entrance front, facing west, consists of five bays separated by red brick pilaster strips. There are moulded brick stringcourses between the storeys, as well as at the sill and window-head levels. A moulded brick cornice with a shaped gable above divides the facade into five bays, with the pilaster strips ending in terracotta finials that feature anthemion detail. Between the pilasters, terracotta copings rise in concave stages to a ball finial at the apex. A clock is positioned in the centre of the gable, surrounded by brickwork. The basement and ground floor windows, which have 20th-century glazing, feature segmental heads and brick surrounds. The first floor has tall round arched windows with brick surrounds and terracotta keystones, although these windows have been blocked. The centre bay includes a projecting square red brick porch that rises to the base of the gable. The porch has round arched openings on the ground floor, with a door facing west and windows on either side, all of which are 20th-century. The tall upper stage of the porch features angle-pilasters and small round windows set high on each side, along with a moulded brick cornice.

The northern side of the building has six bays and three storeys, with pilaster strips and stringcourses similar to the front. The windows match those on the facade, with the tall upper windows having smaller windows inserted. The southern side is similarly detailed, and attached to the eastern end is a lower four-storey former caretaker’s house, now functioning as a medical centre. This house consists of three narrow bays, rendered with brick detailing for the quoins and window surrounds, featuring 20th-century glazing. It has a slate roof and a broad gable end with a brick chimney stack.

The interior has been modernised, featuring a large upper room with a two-stage raised dais at the rear, which has painted timber panelled fronts.

Local climate

Former Colliery Workmen’s Institute 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
  • No sale records on file
  • Related listed building consents — 3 applications
  • 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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