Long Barn to S.of Carnachenwen is a Grade II listed building in the Pembrokeshire Coast National Park local planning authority area, Wales. First listed on 29 April 1993. A C19 Barn.

Long Barn to S.of Carnachenwen

WRENN ID
narrow-cupola-sage
Grade
II
Local Planning Authority
Pembrokeshire Coast National Park
Constituency
Ceredigion Preseli MP: Ben Lake (PC)
Country
Wales
Date first listed
29 April 1993
Type
Barn
Address
Long Barn to S.of Carnachenwen, Mathry
OS grid reference
SM 876 329
Coordinates
51.95461, -5.09205
Source
Cadw listing

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

Description

This is a late 19th-century lofted barn, which includes a small section of an earlier building at the northern end. The barn is constructed from rubble stone and features a slate roof. It has a long, two-storey layout with red brick frames around the openings, except for the ground floor on the left side, which is part of the older section. The late 19th-century work includes red brick angle quoins.

There are six widely spaced, square loft windows beneath the eaves, each with slate sills and 6-pane tilting windows, some of which have been renewed. The older part on the ground floor left has stone cornerstones, a vent loop, and a door, along with a recess for a missing date stone above and to the right of the door. Further along, there is a late 19th-century blocked door, followed by a window, another window, a door, and a window that leads to a loose box. The northern end wall features a lean-to. The southern end has external steps leading up to the loft door.

The rear of the barn is built against a bank and has one door located to the right of centre on the ground floor (on the eastern side). To the left of centre, there is a row of doveholes at floor level, and a centrally positioned gabled loft door that breaks the eaves. There are two loft windows on each side of the barn.

Inside, the barn has a single long 12-bay loft and retains remnants of shafting for mill machinery on the ground floor.

Local climate

Long Barn to S.of Carnachenwen sits in a wetter-than-average part of the UK, with an average of 1,050 mm of rain a year. This makes it wetter than 84% 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 3 freeze-thaw cycles a year, fewer than 99% of listed buildings. Of these, 1 follows 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. Small Outbuildings to SW.of Carnachenwen Farmhouse Grade II 20 m
  2. Carnachenwen Grade II 25 m
  3. Cartshed at Entrance to S.of Carnachenwen Grade II 27 m
  4. Small Outbuildings to SW.of Carnachenwen Farmhouse Grade II 29 m
  5. Pigsties at Carnachenwen Grade II 34 m
  6. Outbuilding to NW.of House at Carnachenwen Grade II 41 m
  7. High Roost Grade II 936 m
  8. Outbuilding to E.of High Roost Grade II 940 m
  9. Telephone Call-box at the General Stores Grade II 979 m
  10. Church of the Holy Martyrs Grade II 1.0 km