Knightstone is a Grade I listed building in the East Devon local planning authority area, England. First listed on 28 April 1952. A C16 House. 6 related planning applications.

Knightstone

WRENN ID
tattered-soffit-crow
Grade
I
Local Planning Authority
East Devon
Constituency
Honiton and Sidmouth MP: Richard Foord (LD)
Country
England
Date first listed
28 April 1952
Type
House
Address
Knightstone, Knightstone Road, Ottery St. Mary, EX11 1PP
OS grid reference
SY 107 941
Coordinates
50.74011, -3.26663
Source
Historic England listing

Also on this page: sale history · EPC · related consents · flood risk · radon risk · weather exposure · detailed attributes ↓

Description

Knightstone is a Grade I listed building located on Knightstone Road, dating from the 14th century and later. This two-storey stone structure faces west and features two gabled wings, with a two-storey porch attached to the right wing. To the right, there is an extension with rendered walls that is believed to contain parts of an old chapel, for which a licence was granted by Bishop Brantingham in 1381. The wall includes a blank two-light window with old oak mullions and trefoil heads. Above the porch, there is a date stone inscribed with the initials of Gideon Sharman and his wife, dated 1563. The house was purchased by Gideon's father and was previously owned by Thomas Grey, Marquis of Dorset, whose wife constructed the Dorset aisle in the church and was the grandmother of Lady Jane Grey.

To the left of the porch are two large nine-light stone mullion transom windows that illuminate a large hall adjacent to the passage. The interior features a fine timbered roof and a deep plaster frieze adorned with grotesque figures. There are two stone four-centred doorways on the north wall. A passage, which contains two old doors, leads through the house. At the rear, there are two long wings, one of which has pigeon holes with alighting perches. The house has been recently and carefully restored, showcasing a fine example of a 16th-century mansion, with many original features still intact.

Local climate

Knightstone receives an average of 800 mm of rain a year. This makes it drier than 55% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 75% of listed buildings.

It experiences an average of 16 freeze-thaw cycles a year, fewer than 84% of listed buildings. Of these, 6 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 — 2 transactions since 2017
  • Related listed building consents — 6 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
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