Conon House is a Grade II listed building in the South Norfolk local planning authority area, England. First listed on 29 December 1950. A C17 House. 1 related planning application.

Conon House

WRENN ID
watchful-tower-fog
Grade
II
Local Planning Authority
South Norfolk
Constituency
South Norfolk MP: Ben Goldsborough (Lab)
Country
England
Date first listed
29 December 1950
Type
House
Address
Conon House, 10, Vicar Street, Wymondham, NR18 0PL
OS grid reference
TG 107 016
Coordinates
52.57225, 1.10901
Source
Historic England listing

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

Description

Conon House is a house located on Vicar Street in Wymondham, dating from the 17th century with later alterations and additions. The building is timber-framed, with brick elements, rendered and whitewashed. The front features a slate roof, while the rear has black glazed pantiles. It stands two storeys high with a dormer attic and an underbuilt jetty on the first floor. The entrance door is positioned to the left of centre within a simple case. There are three-light 19th-century casement windows on both sides of the door. Below the rendered upper storey, there is a boarded jetty bressumer. The house has two early 19th-century three-light casements and a double modillion timber eaves cornice. The gabled roof includes a flat-topped ridge stack, with internal gable-end stacks, one predominantly on the front roof slope and the other on the rear. At the rear, there is a hipped two-storey 18th-century cross wing, which is lit by a first-floor sash window with glazing bars, while the ground-floor window is a late 20th-century addition. There are also various single-storey additions.

Inside, the north ground-floor room features a sunk-quadrant bridging beam and a wall plate that separates it from the room at the rear. The south room has plain chamfered beams with tongue stops. A winder staircase is located by the stack. The first-floor rooms have chamfered bridging beams and jowled principal studs that support the roof. Arched braces are present at the gable ends, and the roof structure consists of principals, staggered butt purlins, collars, and straight windbracing in the corners.

Local climate

Conon House sits in a drier-than-average part of the UK, with an average of 720 mm of rain a year. This makes it drier than 82% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 94% of listed buildings.

It experiences an average of 29 freeze-thaw cycles a year, fewer than 68% of listed buildings. Of these, 16 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
  • Sale history — 1 transaction since 2005
  • 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
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Nearby listed buildings

  1. Stables to East of 12 Grade II 6 m
  2. Rook House Grade II 17 m
  3. Canterbury House Grade II 27 m
  4. 1 and 3, Vicar Street Grade II 35 m
  5. Abbotsford Grade II 41 m
  6. Wymondham War Memorial Grade II 44 m
  7. The Vicarage Including Attached Forecourt Wall Grade II 64 m
  8. 24, 26 and 28, Middleton Street Grade II 64 m
  9. 3, 3a and 5, Town Green Grade II 67 m
  10. 2, 2a, 2b and 4, Town Green Grade II 69 m