Telegraph Cottage is a Grade II listed building in the Plymouth local planning authority area, England. First listed on 1 May 1975. Telegraph cottage. 1 related planning application.

Telegraph Cottage

WRENN ID
iron-trefoil-sorrel
Grade
II
Local Planning Authority
Plymouth
Constituency
South West Devon MP: Rebecca Smith (Con)
Country
England
Date first listed
1 May 1975
Type
Telegraph cottage
Address
Telegraph Cottage, Drunken Bridge Hill, City of Plymouth, PL7 1UG
OS grid reference
SX 531 553
Coordinates
50.37961, -4.06628
Source
Historic England listing

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

Description

Telegraph Cottage is a building dating from around 1800, originally constructed as a telegraph house for signaling messages to warn of potential invasions from France. It was built for the Admiralty as part of a network of signaling stations designed by Lord George Murray, inspired by a more complex system created by the Frenchman Claude Chappe. The original section of the cottage is rendered, while the rest is made of painted rubble, topped with a bitumen-grouted rag slate roof. It features rendered brick stacks, including a central axial stack and another on the right side of the front.

The cottage has a small rectangular single-depth plan consisting of two rooms, along with an original lean-to on the left and a 20th-century conservatory in front. It is a single-storey building with a two-window front and the conservatory positioned to the left of the doorway. The windows are from the 20th century.

Although the interior was not inspected, historically, there was a 20-foot high signaling panel above the ridge, which included six pivoting shutters that could be adjusted from inside the house using a system of ropes, cranks, and counterweights. This allowed messages to be relayed across the country quickly, with 63 possible shutter combinations enabling pre-arranged messages to be sent over hundreds of miles in just minutes. Remnants of this signaling structure can still be found in the roof space. Telegraph Cottage is the only surviving building of its type, making it historically and technically significant on a national level.

Local climate

Telegraph Cottage 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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  • No EPC on record for this property
  • No sale records on file
  • Related listed building consents — 1 application
  • Detailed attributes — period, style, materials, features
  • Flood risk assessment
  • 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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