Furnace bank at former Amman Iron Works is a Grade II listed building in the Neath Port Talbot local planning authority area, Wales. First listed on 2 August 2002. Industrial structure.
Furnace bank at former Amman Iron Works
- WRENN ID
- moated-grate-mint
- Grade
- II
- Local Planning Authority
- Neath Port Talbot
- Constituency
- Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
- Country
- Wales
- Date first listed
- 2 August 2002
- Type
- Industrial structure
- Address
- Furnace bank at former Amman Iron Works, Lower Brynamman, Ammanford, Gwaun-Cae-Gurwen
- OS grid reference
- SN 714 139
- Coordinates
- 51.80919, -3.86531
- Source
- Cadw listing
Description
The furnace bank at the former Amman Iron Works is a Grade II listed structure featuring a high rubble stone revetment that supports an earth bank. The facing walls are made of battered grey limestone and rise to heights of approximately 7 to 8 meters. The central portion of the bank projects outwards and measures about 15 meters in length, featuring two arched openings for the hot blast, while the returns on either side extend for 10 meters. The right side includes arches, whereas the left side does not. To the left, the revetment extends for about 15 meters without arches, while the right side, of similar length, has four arches, all of which are surrounded by brick. Additionally, the base of a blast engine-house remains to the east. The upper level of the structure was utilized for preparing materials for charging the furnaces and included separate iron ore calcining kilns.
Local climate
Furnace bank at former Amman Iron Works sits in one of the wettest parts of the UK, with an average of 1,470 mm of rain a year. This makes it wetter than 98% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 96% of listed buildings.
It experiences an average of 34 freeze-thaw cycles a year, fewer than 52% of listed buildings. Of these, 16 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
- 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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