Holy Well of St Ia is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 22 December 1972. Well.
Holy Well of St Ia
- WRENN ID
- dreaming-cellar-auburn
- Grade
- II
- Local Planning Authority
- Cornwall
- Constituency
- St Ives MP: Andrew George (LD)
- Country
- England
- Date first listed
- 22 December 1972
- Type
- Well
- Address
- Holy Well of St Ia, Porthmeor Hill, St. Ives
- OS grid reference
- SW 514 407
- Coordinates
- 50.21433, -5.48461
- Source
- Historic England listing
Description
The Holy Well of St Ia, dating from 1587, is located on Porthmeor Hill. It features two granite troughs, with one being slightly larger than the other. The troughs are supported by granite lintels that hold up a flat roof. This well served as the main water supply for Downalong until 1843.
Local climate
Holy Well of St Ia receives an average of 910 mm of rain a year. This makes it wetter than 68% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 91% of listed buildings.
It experiences an average of 4 freeze-thaw cycles a year, fewer than 98% of listed buildings. Of these, 1 follows 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
Sign in or create a free account to unlock:
- No EPC on record for this property
- Sale history — 4 transactions since 2001
- No related consent applications matched
- 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
Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.
Similar buildings
The closest matches to this building from all 493,000 UK listed buildings, by architecture, period and materials.
this building 1 similar nearby listed buildings