Nansidwell is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 17 June 1988. Country house. 1 related planning application.
Nansidwell
- WRENN ID
- ragged-gable-jet
- Grade
- II
- Local Planning Authority
- Cornwall
- Constituency
- Camborne and Redruth MP: Perran Moon (Lab)
- Country
- England
- Date first listed
- 17 June 1988
- Type
- Country house
- Address
- Nansidwell, Mawnan, TR11 5HU
- OS grid reference
- SW 784 282
- Coordinates
- 50.11247, -5.09999
- Source
- Historic England listing
Description
Nansidwell is a country house dating from circa 1905, designed by Leonard Stokes for Sir Sidney Bowlatt. It is constructed of killas rubble with granite dressings, featuring steep dry Delabole slate gabled roofs. Large stone axial stacks are positioned over the cross wall, and the projecting eaves have exposed rafter ends. The building’s plan is an overall U-shape, comprising four large rooms along a garden front range under a single roof. There is a large, heated hall in a wing set at a right angle behind the left-hand side, with another room beyond. An entrance porch is situated in the angle to the left of this wing, and a similar but lower service wing extends behind the right-hand side. Two smaller cross wings, aligned with canted bays at the front, are positioned between the front rooms of the rear wings, incorporating a large stair hall. A flat-roofed single-storey service range sits behind the stair hall and is linked to the front of the rear wings.
The south east garden front has a regular 1:1:1:2 bay arrangement, with no doorways. It includes a plinth, and mullioned windows with flat mullions, leaded lights, and transoms to the ground floor. The left-hand bay features a six-light window, while the second and third bays have canted bay windows with tented leaded roofs and gables over, to both the ground and first floors. The right-hand bays have two-light windows. The south west entrance front showcases the gable end of the garden front range on the right, with a four-light window to the ground floor and a three-light window above. Set back to the left is the 1:1 bay side wall of the principal wing, featuring two-light windows to the hall bay. In the angle between the two ranges is an entrance porch with a round-headed doorway. Original doors and windows remain. Rear courtyard-facing windows are wooden casements with thick glazing bars.
The interior, where inspected, is virtually complete and unaltered. Features are in a style reminiscent of the early 18th century, including an open-well open-string staircase with turned balusters, moulded ceiling cornices (both wooden and plaster), panelled doors and architraves, eared chimney-pieces with pulvinated friezes, and numerous individual details like a built-in settle in the stair hall. The hall chimney-piece is recessed within a large ingle-nook with seats on either side. The floors are oak.
Local climate
Nansidwell 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
Sign in or create a free account to unlock:
- Full EPC report — heating system, energy costs, size, glazing, construction etc.
- Sale history — 5 transactions since 2002
- Related listed building consents — 1 application
- 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.
Similar buildings
The closest matches to this building from all 493,000 UK listed buildings, by architecture, period and materials.
this building 1 similar nearby listed buildings