Pillbox and anti-tank pimple to west of Knoll Beach car park is a Grade II listed building in the Dorset local planning authority area, England. First listed on 30 November 2012. Military structure.

Pillbox and anti-tank pimple to west of Knoll Beach car park

WRENN ID
low-plinth-moth
Grade
II
Local Planning Authority
Dorset
Constituency
South Dorset MP: Lloyd Hatton (Lab)
Country
England
Date first listed
30 November 2012
Type
Military structure
OS grid reference
SZ 032 835
Coordinates
50.65167, -1.95525
Source
Historic England listing

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

Description

The structure is a pillbox and anti-tank pimple located to the west of the Knoll Beach car park. The pillbox is made of reinforced, shuttered concrete and has an irregular hexagon shape. It is built on a large concrete base. There are openings, known as embrasures, on the east, north-east, and south-east sides, while the entrance on the west side has been sealed with concrete to prevent access. The anti-tank pimple to the south-west is part of a series of defensive blocks that were placed across the trackway. It features a pyramidal top and still shows some of its original camouflage paint.

Local climate

Pillbox and anti-tank pimple to west of Knoll Beach car park receives an average of 820 mm of rain a year. This makes it wetter than 51% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 84% of listed buildings.

It experiences an average of 7 freeze-thaw cycles a year, fewer than 95% 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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  2. Pillbox east of Knoll House Hotel Grade II 249 m
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