Grotto at Hall Barn is a Grade II listed building in the Buckinghamshire local planning authority area, England. First listed on 24 April 1985. Grotto.

Grotto at Hall Barn

WRENN ID
tenth-cellar-grain
Grade
II
Local Planning Authority
Buckinghamshire
Constituency
Beaconsfield MP: Joy Morrissey (Con)
Country
England
Date first listed
24 April 1985
Type
Grotto
Address
Grotto at Hall Barn, Beaconsfield
OS grid reference
SU 941 887
Coordinates
51.58957, -0.6424
Source
Historic England listing

Also on this page: flood risk · radon risk · weather exposure · detailed attributes ↓

Description

The Grotto at Hall Barn is a 19th-century structure located on the Hall Barn Estate in Beaconsfield. It is built of flint and is reputed to have been used by the poet John Milton.

Local climate

Grotto at Hall Barn sits in a drier-than-average part of the UK, with an average of 710 mm of rain a year. This makes it drier than 88% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 88% of listed buildings.

It experiences an average of 31 freeze-thaw cycles a year, fewer than 61% of listed buildings. Of these, 14 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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  • Detailed attributes — period, style, materials, features
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  • 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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