Milestone 100m NE of Trewhiddle Lodge is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 3 August 2010. Milestone.
Milestone 100m NE of Trewhiddle Lodge
- WRENN ID
- unlit-hearth-poplar
- Grade
- II
- Local Planning Authority
- Cornwall
- Constituency
- St Austell and Newquay MP: Noah Law (Lab)
- Country
- England
- Date first listed
- 3 August 2010
- Type
- Milestone
- Address
- Milestone 100m NE of Trewhiddle Lodge, B3273, Pentewan Valley
- OS grid reference
- SX 011 509
- Coordinates
- 50.32524, -4.79545
- Source
- Historic England listing
Description
The milestone located 100 meters northeast of Trewhiddle Lodge was erected around 1826 and marks the road between St Austell and Mevagissey, now known as the B3273. It is positioned on the west side of the road within a wide verge.
This milestone is made of granite and has been whitewashed. It has a rectangular shape with a rounded top, standing approximately 0.91 meters high and 0.40 meters wide. The face of the milestone features black lettering that reads "ST A 1," with a large benchmark positioned above the inscription.
Historically, this milestone is situated on the southern route from St Austell to Mevagissey, passing through London Apprentice and Pentewan. The road was not designated as a turnpike and was first documented on C & J Greenwood's county map of 1827. In the early 19th century, it likely served to transport china clay from St Austell to the harbour at Pentewan, which was constructed by Sir Christopher Hawkins between 1818 and 1826. A railway built parallel to the road followed in 1829 to facilitate the clay transport.
The milestone's location is noted on the first edition Ordnance Survey map from 1888, indicating a distance of one mile from St Austell, with a similar inscription appearing on the second edition map from 1907.
This milestone is designated at Grade II due to its historic interest as a notable example of an early 19th-century milestone associated with the china clay transportation, and for its intact condition in its original location.
Local climate
Milestone 100m NE of Trewhiddle Lodge receives an average of 960 mm of rain a year. This makes it wetter than 74% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 86% of listed buildings.
It experiences an average of 10 freeze-thaw cycles a year, fewer than 91% of listed buildings. Of these, 4 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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