Garden Wall Immediately North West of Trenarth Barton is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 17 June 1988. Garden wall.

Garden Wall Immediately North West of Trenarth Barton

WRENN ID
shadowed-lead-myrtle
Grade
II
Local Planning Authority
Cornwall
Constituency
Camborne and Redruth MP: Perran Moon (Lab)
Country
England
Date first listed
17 June 1988
Type
Garden wall
Address
Garden Wall Immediately North West of Trenarth Barton, Constantine
OS grid reference
SW 755 287
Coordinates
50.11655, -5.14059
Source
Historic England listing

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

Description

The garden wall immediately north west of Trenarth Barton is likely from the late 18th century and incorporates some reused materials from the 17th century. It is constructed from slate and granite rubble with granite dressings. The wall is high and encloses three sides of the garden, abutting the north west wing of Trenarth Barton. It features rounded rubble coping with a dripcourse and is ramped up to higher levels due to the sloping ground. On the north side, there is a reused 17th century chamfered granite doorframe. Previously, there were lean-to greenhouses on the inside of the wall. Historian Charles Henderson suggested that the wall was built around the same time as the earlier part of the house.

Local climate

Garden Wall Immediately North West of Trenarth Barton receives an average of 870 mm of rain a year. This makes it wetter than 63% 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 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 0.2°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.

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