Submarine Mine Observation Station and Observation Post is a Grade II listed building in the South Hams local planning authority area, England. First listed on 27 February 2014. Observation station.

Submarine Mine Observation Station and Observation Post

WRENN ID
errant-flint-merlin
Grade
II
Local Planning Authority
South Hams
Constituency
South West Devon MP: Rebecca Smith (Con)
Country
England
Date first listed
27 February 2014
Type
Observation station
OS grid reference
SX 487 509
Coordinates
50.33896, -4.12616
Source
Historic England listing

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

Description

The Submarine Mine Observation Station, built in 1896, features an observation post constructed around 1910, located immediately to the north. These structures are historically linked to a Defence Electric Light emplacement and Fort Bovisand.

Both buildings are made of shuttered concrete. The observation station is built around an earlier limestone building and includes iron fittings and armour plating. It is a semi-sunken concrete structure with two observation cells, each accessed by steps at the rear. Inside, each cell contains a slab with a recess or instrument socket. The roofs are protected by armour plating, and the viewing slits are fitted with sliding iron shutters.

The observation post is a small rectangular concrete structure with a door at the rear and a wide opening at the front. The concrete roof at the front is partially collapsed.

Local climate

Submarine Mine Observation Station and Observation Post sits in a wetter-than-average part of the UK, with an average of 970 mm of rain a year. This makes it wetter than 77% 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 92% 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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Nearby listed buildings

  1. Defence Electric Light Emplacement North of Bovisand Harbour Grade II 95 m
  2. Staddon Heights Battery Grade II 212 m
  3. Bovisand Harbour and Pier Grade II 247 m
  4. Coastguard Cottages Grade II 264 m
  5. Staddon Cottage, including former magazine Grade II 277 m
  6. Fort Bovisand Grade II* 285 m
  7. Group of 4 Second World War Coastal Artillery Search Lights Grade II 312 m
  8. Bovisand Lodge Grade II 914 m
  9. Battery Grade II 1.6 km
  10. St Anne's House Grade II 1.7 km