Crenellated Wall to North East of Trematon Castle Keep is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 22 November 1982. Wall.

Crenellated Wall to North East of Trematon Castle Keep

WRENN ID
silver-remnant-onyx
Grade
II
Local Planning Authority
Cornwall
Constituency
South East Cornwall MP: Anna Gelderd (Lab)
Country
England
Date first listed
22 November 1982
Type
Wall
Address
Crenellated Wall to North East of Trematon Castle Keep, Saltash
OS grid reference
SX 411 580
Coordinates
50.40056, -4.23718
Source
Historic England listing

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

Description

The crenellated wall to the north-east of Trematon Castle Keep is likely from the early 19th century. It consists of a short length of rubble masonry featuring crenellations and a segmental archway. This wall connects to the remains of a former orangery, of which a gable end still exists. Adjacent to the wall is a Tudor arch stone doorway that has decorative spandrels.

Local climate

Crenellated Wall to North East of Trematon Castle Keep sits in a wetter-than-average part of the UK, with an average of 990 mm of rain a year. This makes it wetter than 80% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 89% of listed buildings.

It experiences an average of 9 freeze-thaw cycles a year, fewer than 91% of listed buildings. Of these, 3 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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  • Detailed attributes — period, style, materials, features
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  • 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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Nearby listed buildings

  1. Medieval doorway north east of Trematon Castle Keep Grade II 33 m
  2. 3 Tudor Archways in Grounds to East of Trematon Castle Keep Grade II 58 m
  3. Stables to West of Trematon Castle Grade II 87 m
  4. Higher Lodge at Trematon Castle Grade II* 101 m
  5. Old Mill House and Mill Grade II 141 m
  6. Riverside Rose Cottage Rose Cottage and Riverside and Stone Wall Immediately to East of Riverside Fronting Onto Latchbrook Stream Grade II 240 m
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  10. Torvilla Farmhouse Grade II 407 m