Great Barn at Castle Hill Farm is a Grade II* listed building in the Dacorum local planning authority area, England. First listed on 9 May 1973. Barn. 4 related planning applications.

Great Barn at Castle Hill Farm

WRENN ID
drifting-stronghold-magpie
Grade
II*
Local Planning Authority
Dacorum
Constituency
Harpenden and Berkhamsted MP: Victoria Collins (LD)
Country
England
Date first listed
9 May 1973
Type
Barn
Address
Great Barn at Castle Hill Farm, Berkhamsted, HP4 1HH
OS grid reference
SP 990 087
Coordinates
51.76894, -0.56536
Source
Historic England listing

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

Description

The barn, probably of 16th century origin, is a timber-framed structure with weatherboarding and sections rebuilt in red brick, covered by a plain tile roof with gabled ends. Originally a large 6-bay barn, it likely had additional bays at the northwest end, which have since been removed. An aisle runs along the southwest side. Later outshuts and a midstrey (a central storage area) were added to the northeast side. The northeast side features a catslide roof over the outshuts, with brickwork at each end. The midstrey is located to the right of the center, with a lower, weatherboarded timber-framed outshut in the middle. The southwest side’s original aisle wall has been rebuilt in brick, containing cart entrances on the left and right, and two gabled loft doors centrally positioned. The northwest and southeast gable ends are weatherboarded. The main timber frame remains largely intact, with the exception of the rebuilt aisle wall and missing original studding and rails on the northeast and southeast walls. The interior features tall, jowled aisle posts with curved braces connecting to the aisle-plate and tie-beams. Queen posts, formed from the upper ends of cruck blades, support principals and collars, which clasp diagonally-set through purlins. The principals diminish in size above the collars. Curved wind braces are present on the clasped purlins, but not on the tenoned (butt) purlins below; similar butt-purlins are found in the aisle. The common rafter couples are complete, and there is no ridge piece. Some of the aisle ties may have been replaced. There is an engraving of the barn held within the County Record Office.

Local climate

Great Barn at Castle Hill Farm 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 77% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 79% of listed buildings.

It experiences an average of 38 freeze-thaw cycles a year, more than 72% 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 — 4 transactions since 2007
  • Related listed building consents — 4 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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