Baptistry Chapel of St Madern's Well at SW 446327 is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 10 June 1954. Chapel.

Baptistry Chapel of St Madern's Well at SW 446327

WRENN ID
empty-hinge-crag
Grade
II
Local Planning Authority
Cornwall
Constituency
St Ives MP: Andrew George (LD)
Country
England
Date first listed
10 June 1954
Type
Chapel
Address
Baptistry Chapel of St Madern's Well at SW 446327, Madron
OS grid reference
SW 446 328
Coordinates
50.14021, -5.57513
Source
Historic England listing

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

Description

The Baptistry Chapel of St Madern's Well is a roofless chapel located in Madron, likely dating back to the medieval period. It is constructed from granite moorstone rubble and has a rectangular plan. The chapel features a doorway in the north wall, an altar slab at the east end, and a baptistry well that is supplied by a leat through the south wall, situated in the southwest corner.

Local climate

Baptistry Chapel of St Madern's Well at SW 446327 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 75% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 96% of listed buildings.

It experiences an average of 1 freeze-thaw cycle a year, fewer than 99% of listed buildings. Average temperatures at this location have risen by 0.2°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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