Boundary Stone Circa 23 Metres South of Entrance to Captain's House is a Grade II listed building in the Dorset local planning authority area, England. First listed on 17 May 1983. A Mid to late C19 Boundary marker.

Boundary Stone Circa 23 Metres South of Entrance to Captain's House

WRENN ID
stubborn-gravel-sepia
Grade
II
Local Planning Authority
Dorset
Constituency
South Dorset MP: Lloyd Hatton (Lab)
Country
England
Date first listed
17 May 1983
Type
Boundary marker
OS grid reference
SY 684 743
Coordinates
50.56769, -2.44724
Source
Historic England listing

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

Description

This boundary stone, dating from the mid to late 19th century, is located approximately 23 meters south of the entrance to Captain's House on Portland Castle Road in Castletown. The stone is roughly 300 millimeters square with a worn pyramidal top, which is partly hidden by the rising road surface. It is situated next to the boundary wall of the Castle. The south face of the stone is incised with the words "WD BOUNDARY," while the east and west faces feature a "WD" arrow. This stone is one of several similar markers on the island, established by military authorities, and it likely has an identifying number on its lower part.

Local climate

Boundary Stone Circa 23 Metres South of Entrance to Captain's House receives an average of 840 mm of rain a year. This makes it wetter than 55% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 77% of listed buildings.

It experiences an average of 13 freeze-thaw cycles a year, fewer than 88% of listed buildings. Of these, 5 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.

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Nearby listed buildings

  1. Gateway and Curtain Wall to South East of Captain's House Grade II* 38 m
  2. Captain's House Grade II* 49 m
  3. Portland Castle Grade I 68 m
  4. Royal Breakwater Hotel Grade II 294 m
  5. 1 Castletown Grade II 444 m
  6. Mulberry Harbour Phoenix Caissons at Portland Harbour Grade II 511 m
  7. Royal Victoria Hotel Grade II 522 m
  8. Front Boundary Wall and Steps to Police Station Grade II 528 m
  9. Police Station with Court Room Grade II 545 m
  10. 1 and 2 with Boundary Wall and Steps Grade II 558 m