Old Callow Down Farmhouse is a Grade II listed building in the Buckinghamshire local planning authority area, England. First listed on 4 July 1985. A Medieval Farmhouse. 8 related planning applications.

Old Callow Down Farmhouse

WRENN ID
frozen-iron-river
Grade
II
Local Planning Authority
Buckinghamshire
Constituency
Mid Buckinghamshire MP: Greg Smith (Con)
Country
England
Date first listed
4 July 1985
Type
Farmhouse
Period
Medieval
Address
Old Callow Down Farmhouse, Wigans Lane, Bledlow-Cum-Saunderton, HP14 4BH
OS grid reference
SU 787 999
Coordinates
51.69314, -0.86217
Source
Historic England listing

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

Description

Old Callow Down Farmhouse is a house dating from the 15th and early 16th centuries, with alterations around 1600 and subsequent changes. The house has a timber frame construction using crucks, with rendered infill at the rear and brick infill to the front and gable of the left bay, where the cruck truss is exposed. The right bays were refronted in the 18th century using red and vitreous chequer brick, with a rendered plinth. The right gable is partially rendered. The roof is covered in old tiles, with a brick chimney between the left bays and later brick end chimneys.

The house is one storey and attic, with three bays. Windows are irregular, 20th-century leaded casements, including a dormer with a paired casement in the centre bay. A small window is situated below the eaves over a 20th-century door between the left bays. A 19th-century brick and flint extension to the rear creates an L-shaped plan.

Inside, there are four asymmetrical cruck trusses, the blades of which terminate above the collars. The outer bays retain original floors with heavy longitudinal joists. The left bay features a cross passage, likely added later. A floor and chimney were inserted into the central hall around 1600. The spine beam and ground floor fireplace lintel are chamfered with run-out stops. The first-floor fireplace has a depressed arch of chamfered brick. Original rafters and curved wind-braces remain in the roof.

Local climate

Old Callow Down Farmhouse sits in a drier-than-average part of the UK, with an average of 730 mm of rain a year. This makes it drier than 79% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 82% of listed buildings.

It experiences an average of 39 freeze-thaw cycles a year, more than 75% of listed buildings. Of these, 18 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 2002
  • Related listed building consents — 8 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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  7. Frogmore Farm Cottages Grade II 1.7 km
  8. The Old House Farmhouse Grade II* 1.9 km
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