Chy Meyn is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 23 November 1988. House. 2 related planning applications.

Chy Meyn

WRENN ID
blind-span-larch
Grade
II
Local Planning Authority
Cornwall
Constituency
North Cornwall MP: Ben Maguire (LD)
Country
England
Date first listed
23 November 1988
Type
House
Address
Chy Meyn, Altarnun, PL15 7RH
OS grid reference
SX 223 811
Coordinates
50.60269, -4.51139
Source
Historic England listing

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

Description

Chy Meyn is a house built around the mid to late 19th century. It is constructed of stone rubble with ashlar stone quoins and voussoirs, topped with a slate roof that has gable ends. The building features brick shafts at the end stacks. The layout is a double depth plan with a central entrance leading to the main rooms at the front, which are heated by the end stacks, while service rooms and the staircase are located at the rear.

The exterior is two storeys high and has a symmetrical three-window front. The central entrance has a dressed stone 4-centred arched opening, which contains a 19th-century panelled door and a small fanlight above. On either side of the entrance are two 19th-century six-pane sash windows, with three similar sash windows on the first floor. The interior has not been inspected.

Local climate

Chy Meyn sits in a wetter-than-average part of the UK, with an average of 1,030 mm of rain a year. This makes it wetter than 83% 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 16 freeze-thaw cycles a year, fewer than 84% of listed buildings. Of these, 7 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
  • Sale history — 1 transaction since 2017
  • Related listed building consents — 2 applications
  • 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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