Guardhouse is a Grade II listed building in the Plymouth local planning authority area, England. First listed on 19 December 1990. Guardhouse.

Guardhouse

WRENN ID
brooding-chancel-torch
Grade
II
Local Planning Authority
Plymouth
Constituency
Plymouth Sutton and Devonport MP: Luke Pollard (Lab)
Country
England
Date first listed
19 December 1990
Type
Guardhouse
Address
Guardhouse, City of Plymouth
OS grid reference
SX 468 529
Coordinates
50.35605, -4.15433
Source
Historic England listing

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

Description

The Guardhouse on Drake's Island in Plymouth is an early 19th-century building that underwent later alterations in the 19th century. It is constructed from slate and limestone rubble, featuring granite quoins, brick arches, and some patching. The roof is a dry slate hipped design. Originally, the building was square with a central doorway, but it has been extended on the southwest side. It is a single-storey, small rectangular structure with an asymmetrical southeast front. The doorway is positioned to the right and has cambered red brickwork with a planked door. To the left of the doorway, there is a small square window, and another small window is located above a blocked opening on the left side. No notable features were observed in the interior.

Local climate

Guardhouse 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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