Prospect House is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 12 May 1988. Farmhouse.
Prospect House
- WRENN ID
- grim-sandstone-owl
- Grade
- II
- Local Planning Authority
- Cornwall
- Constituency
- North Cornwall MP: Ben Maguire (LD)
- Country
- England
- Date first listed
- 12 May 1988
- Type
- Farmhouse
- Address
- Prospect House, St. Columb Major
- OS grid reference
- SW 917 645
- Coordinates
- 50.44348, -4.93485
- Source
- Historic England listing
Description
Prospect House is a farmhouse dating from the early to mid 19th century, with later additions and alterations from the late 19th century and some changes in the 20th century. It is constructed of roughcast stone rubble and cob, topped with a slate roof featuring ridge tiles and gable ends. The building has gable end stacks with brick shafts.
The layout consists of a two-room plan with a central entrance, where each room is heated by a gable end stack. To the right of this main plan is a rear wing that contains service rooms, and there are dairies added at the rear left corner of the main range. At the left end, there is a small one-room addition that is unheated; this may have originally served as a Methodist chapel for the hamlet of Gluvian.
The exterior is two storeys high, featuring a symmetrical three-window front. The central door, which dates from the 20th century, is topped by a flat hood supported by posts. On either side of the door are 12-pane sash windows from the 19th century. The first floor has a central 12-pane sash window flanked by 16-pane sash windows, all with cambered brick arches from the 19th century. The left end of the building has a single-storey lean-to addition, which features a pointed arched two-light casement window at the front and a similar window with Y tracery, lattice glazing, and some 19th-century stained glass on the left side. The right end of the house is blind.
To the right is the two-storey rear wing, which has two 19th-century four-pane sash windows on the first floor, along with a four-pane sash window and a 20th-century door at ground level. The left side of the wing includes a stair tower with a two-light casement window, each light having six panes and L hinges at the upper level, set within a cambered arch. There is also a lean-to dairy to the left, featuring a two-light eight-pane casement window and a single light window on the inner side. The rear gable end of the wing shows the outline of an earlier rear wing that was raised in height, likely in the late 19th century, so that the stack now rises from the slope of the roof rather than the apex of the gable. The interior has not been inspected.
Local climate
Prospect House receives an average of 920 mm of rain a year. This makes it wetter than 70% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 85% of listed buildings.
It experiences an average of 9 freeze-thaw cycles a year, fewer than 91% of listed buildings. Of these, 4 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
- 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
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