The Triangle is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 15 January 1970. House.
The Triangle
- WRENN ID
- tilted-zinc-primrose
- Grade
- II
- Local Planning Authority
- Cornwall
- Constituency
- St Ives MP: Andrew George (LD)
- Country
- England
- Date first listed
- 15 January 1970
- Type
- House
- Address
- The Triangle, Manaccan
- OS grid reference
- SW 763 249
- Coordinates
- 50.0826, -5.12801
- Source
- Historic England listing
Description
The Triangle is an 18th-century house located in Manaccan. It features painted rubble and cob walls, slate sills, and wooden lintels. The steep scantle slate roof slopes down towards the rear and was formerly thatched, with brick chimneys on the gable ends. The house has a double depth plan, likely consisting of a hall or kitchen on the left and a parlour on the right, with a nearly central cross passage leading to the stairs and shallower service rooms at the back.
It stands two storeys plus an attic and has a nearly symmetrical two-window east front. The doorway is slightly to the right of the middle and includes a four-panel door with a later top-glazed window. To the left of the doorway is a late 18th-century two-light casement window with horizontal wooden glazing bars and leaded panes. To the right of the doorway is an early 19th-century canted bay window with wooden glazing bars, which was probably added for use as a shop or for spinning. The wide first-floor windows are three-light casements without glazing bars. Above the doorway, there is a gabled attic dormer with a two-light casement featuring glazing bars.
A photograph from around 1900 has been copied for the National Monuments Record. Although the interior has not been inspected, it is said to be little altered since the 20th century. The partly leaded glazing of this house appears to be a style unique to the Lizard area.
Local climate
The Triangle receives an average of 870 mm of rain a year. This makes it wetter than 63% 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 3 freeze-thaw cycles a year, fewer than 99% 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 0.2°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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- Full EPC report — heating system, energy costs, size, glazing, construction etc.
- Sale history — 2 transactions since 1998
- 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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