3-4 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.

3-4 Upper Colliers Row

WRENN ID
quartered-stone-aspen
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
3-4 Upper Colliers Row, Ynysfach, Cyfarthfa
OS grid reference
SO 039 060
Coordinates
51.745, -3.392
Source
Cadw listing

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

Description

3-4 Upper Colliers Row is a pair of joined, two-storey stone cottages dating from a time when the row was mostly altered. They feature slate roofs, with some surviving stone chimneys and a few original window openings that may not have been enlarged. The cottages generally have catslide roofs visible at the rear, many of which have been extended. Several cottages in the row have been combined, 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 3 and 4 are constructed of painted rubble stone, with a rendered left stack and a stone right stack that is shared with Nos 3 and 6. They are a mirrored pair, with No 3 having a much-enlarged left window on the ground floor and a blocked door within a long 20th-century porch that leads to the door of No 4. The ground floor window of No 4 is set slightly further in than the window above it. The glazing is from the late 20th century.

Although the interior is not available for inspection, it is said to have joisted floors, fireplaces on the left and right with winding staircases adjacent, timber in No 3 and stone in No 4.

Local climate

3-4 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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