Halwyn is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 26 June 1987. Shipbuilding yard, workshops, house. 4 related planning applications.
Halwyn
- WRENN ID
- lost-courtyard-shade
- Grade
- II
- Local Planning Authority
- Cornwall
- Constituency
- North Cornwall MP: Ben Maguire (LD)
- Country
- England
- Date first listed
- 26 June 1987
- Type
- Shipbuilding yard, workshops, house
- Address
- Halwyn, 2, Roscarrock Hill, St. Endellion, PL29 3RG
- OS grid reference
- SW 995 807
- Coordinates
- 50.59221, -4.8332
- Source
- Historic England listing
Description
Halwyn is a former shipbuilding yard that has been converted into a private house. The main building dates from the late 19th century, while the right-hand range likely dates from the early 19th century. It is constructed from rendered and painted stone rubble, topped with slate roofs featuring gable ends, and the taller range on the right has a pyramid roof. There is a 20th-century rendered brick front lateral chimney stack located to the right of the center.
The layout consists of a single depth three-room plan with entrances on the left-hand side wall and near the center, while the right range has a one-room plan. The building is two stories high and features a regular overall arrangement of five plus one windows. The left side has five windows, which include three early 20th-century two-light casements set in segmental openings, along with a partly glazed 20th-century door near the center of the elevation. The first floor has four two-light and one one-light early 20th-century casements. The taller right range has one window and is built directly on bedrock at a higher level, featuring early 20th-century two-light casements on both the ground and first floors.
The interior is not accessible. In the 19th century, the shipbuilding yard was owned by W.R. Guy and later purchased by Captain William Vickery, who converted it into a private house after the First World War. The last vessel built at the yard was the Bessy Jane, which was captained by Richard Mitchell, known by the nickname Dandy Dick. Halwyn is situated in a prominent location on the south side of Port Isaac harbour.
Local climate
Halwyn sits in a wetter-than-average part of the UK, with an average of 1,060 mm of rain a year. This makes it wetter than 85% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 94% of listed buildings.
It experiences an average of 8 freeze-thaw cycles a year, fewer than 93% of listed buildings. Of these, 3 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
- No sale records on file
- Related listed building consents — 4 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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