Jassamine is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 12 March 1986. Small house. 3 related planning applications.
Jassamine
- WRENN ID
- dark-facade-tide
- Grade
- II
- Local Planning Authority
- Cornwall
- Constituency
- Truro and Falmouth MP: Jayne Kirkham (Lab)
- Country
- England
- Date first listed
- 12 March 1986
- Type
- Small house
- Address
- Jassamine, Perranarworthal, TR3 7PP
- OS grid reference
- SW 776 393
- Coordinates
- 50.21264, -5.11808
- Source
- Historic England listing
Description
A small house, likely dating to the late 18th century, though it may incorporate elements of an earlier structure. The ground floor is constructed of painted rubble, while the upper floor is cob. It has slate sills and wooden lintels, and a steep asbestos slate roof, which was originally thatched. Brick chimneys are positioned over the gable ends. The plan consists of two rooms flanking a central passage leading to a staircase, with a later outshut behind the right-hand room. A workshop or barn adjoins on the right; this is potentially older than the house or separated by a party wall that dates back to the 18th-century remodelling. Evidence suggests a possible through passage, including opposing doorways near the party wall and a broad ledge indicating the wall's interior position. A joint is visible at the return of the party wall. The right-hand gable end is built into a banking. The house is two storeys high, with first-floor rooms partially in the roof space. The west front is almost symmetrical, featuring a two-window arrangement on the front and a one-window barn to the right. The front doorway is centrally positioned and has a 20th-century door, topped with a roof overhang supported by brackets. Original 18th-century 12-pane, two-light casement windows remain, with the exception of a four-pane sash window on the ground floor to the right. The barn to the right has a small window opening in the middle of the ground floor and another to the left of the middle on the first floor. The interior is simple and largely unaltered, featuring an original T-shaped staircase and beamed ceilings. The first floor was not inspected, but the occupier reports that it contains old roof structures. This house is a rare example of an 18th-century vernacular dwelling in the area that has largely escaped significant 20th-century alterations and remains substantially complete.
Local climate
Jassamine receives an average of 850 mm of rain a year. This makes it wetter than 59% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 84% of listed buildings.
It experiences an average of 7 freeze-thaw cycles a year, fewer than 95% 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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- Full EPC report — heating system, energy costs, size, glazing, construction etc.
- Sale history — 1 transaction since 2023
- Related listed building consents — 3 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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