11-12 Upper Colliers Row is a Grade II listed building in the Merthyr Tydfil local planning authority area, Wales. First listed on 22 August 1975. Cottage. 3 related planning applications.
11-12 Upper Colliers Row
- WRENN ID
- little-quoin-rook
- Grade
- II
- Local Planning Authority
- Merthyr Tydfil
- Constituency
- Merthyr Tydfil and Aberdare MP: Gerald Jones (Lab)
- Country
- Wales
- Date first listed
- 22 August 1975
- Type
- Cottage
- Address
- 11-12 Upper Colliers Row, Ynysfach, Cyfarthfa, CF48 1UN
- OS grid reference
- SO 040 060
- Coordinates
- 51.74504, -3.39147
- Source
- Cadw listing
Description
11-12 Upper Colliers Row is part of a row of mostly altered two-storey stone cottages with slate roofs. Some stone chimneys still exist, and a few original window openings may remain unchanged. Catslide roofs are generally visible at the rear, with many having been extended. Several cottages have been joined together, and there are gardens in front with some remaining stone walls. To the south, there is an area of irregular enclosures or allotments associated with the cottage row.
Nos 11 and 12 are joined and have undergone significant alterations. They feature painted roughcast and share stone end stacks with Nos 10 and 13. Each outer bay has a late 20th-century window on both floors, with the lower window set further out, all of which were widened in the 20th century. The inner doors include a late 20th-century double porch for No 11, while the door for No 12 has been removed.
The interior is not available for inspection, but it is said to have joisted floors, fireplaces on the left and right with winding staircases nearby, timber in No 11 and stone in No 12.
Local climate
11-12 Upper Colliers Row sits in one of the wettest parts of the UK, with an average of 1,210 mm of rain a year. This makes it wetter than 92% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 87% of listed buildings.
It experiences an average of 44 freeze-thaw cycles a year, more than 85% of listed buildings. Of these, 22 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
Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.
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