Gadlys Chapel is a Grade II listed building in the Rhondda Cynon Taf local planning authority area, Wales. First listed on 10 January 1991. Chapel.

Gadlys Chapel

WRENN ID
gaunt-floor-gilt
Grade
II
Local Planning Authority
Rhondda Cynon Taf
Constituency
Merthyr Tydfil and Aberdare MP: Gerald Jones (Lab)
Country
Wales
Date first listed
10 January 1991
Type
Chapel
Address
Gadlys Chapel, Trecynon, Aberdare West, Rhondda Cynon Taff
OS grid reference
SN 997 031
Coordinates
51.71806, -3.45198
Source
Cadw listing

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

Description

Gadlys Chapel is a classical building featuring a three-bay front with a pediment, finished in cement render with a plinth. It has a slate roof adorned with tiled cresting and a datestone at the top. The façade includes an entablature and cornice supported by Ionic pilasters. There are round-arched gallery windows with sills, which are broader and segmental-arched above the main entrance. The entrance is framed by a pilastered doorcase with a deep entablature and double doors, flanked by square-headed windows. The entablature and cornice continue along the three-window right side, which has one Ionic pilaster at the corner and similar windows, with arched heads over square heads. At the time of inspection in December 1989, the windows on the front and right side were boarded up but were reported to retain their glazing underneath. The left side features small pane sash windows, round-arched with simple Gothic tracery above square-headed windows with marginal bars. A deep coved band runs below the eaves, and there are doors leading to the basement. A rubble wall with gate piers forms the forecourt. The chapel was disused at the time of inspection, and the interior was not seen.

Local climate

Gadlys Chapel sits in one of the wettest parts of the UK, with an average of 1,260 mm of rain a year. This makes it wetter than 93% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 91% of listed buildings.

It experiences an average of 42 freeze-thaw cycles a year, more than 80% 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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Nearby listed buildings

  1. Gates & Gate Piers, including Flanking Railings at SE (Main) Entrance to Aberdare Park Grade II 112 m
  2. Pedestal and Statue of Lord Merthyr in Aberdare Park Grade II 120 m
  3. Former Calcining Furnaces at Gadly's Ironworks Grade II 252 m
  4. Cynon Valley main Store Building (formerly the Casting House at Gadly's Ironworks Grade II 280 m
  5. Fountain in Aberdare Park Grade II 296 m
  6. Stone Revetments at Former Gadly's Ironworks Grade II 330 m
  7. Blast Engine House at former Gadly's Ironworks Grade II 337 m
  8. Gadlys Higher Standard School (Original Ranges only) Grade II 344 m
  9. 37 & 37a Alma Street Grade II 419 m
  10. Bandstand in Aberdare Park Grade II 426 m