Castle Horneck is a Grade II* listed building in the Cornwall local planning authority area, England. First listed on 7 February 1974. House. 7 related planning applications.
Castle Horneck
- WRENN ID
- shifting-joist-juniper
- Grade
- II*
- Local Planning Authority
- Cornwall
- Constituency
- St Ives MP: Andrew George (LD)
- Country
- England
- Date first listed
- 7 February 1974
- Type
- House
- Address
- Castle Horneck, Penzance, TR20 8TF
- OS grid reference
- SW 457 302
- Coordinates
- 50.11791, -5.55802
- Source
- Historic England listing
Description
Castle Horneck is a large house dating from the late 18th century to the early 19th century. The main southeast facade is constructed of granite ashlar and features two storeys and a basement. It has five windows, with the central three projecting forward and topped by a pediment. The building has a modillion eaves cornice, sash windows without glazing bars, and keyblocks. The quoins are chamfered. The central doorway is adorned with a rusticated architrave and cornice, and it is bridged over a basement well with iron railings. The roof is slate and hipped. The northeast elevation is stuccoed, also two storeys high, with nine windows, sash windows without glazing bars, and an off-centre Doric open porch that has an open pediment and a panelled roof soffit, along with a semi-circular fanlight and iron railings. The southwest elevation is slate hung.
Local climate
Castle Horneck 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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- No EPC on record for this property
- No sale records on file
- Related listed building consents — 7 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
Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.
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