Water Tower and Sun Room at Wappingthorn to the North East of the House and to the North West of the Farm Buildings is a Grade II listed building in the Horsham local planning authority area, England. First listed on 9 May 1980. Water tower.

Water Tower and Sun Room at Wappingthorn to the North East of the House and to the North West of the Farm Buildings

WRENN ID
errant-stone-hyssop
Grade
II
Local Planning Authority
Horsham
Constituency
Arundel and South Downs MP: Andrew Griffith (Con)
Country
England
Date first listed
9 May 1980
Type
Water tower
OS grid reference
TQ 169 136
Coordinates
50.91066, -0.33802
Source
Historic England listing

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

Description

The water tower and sun room at Wappingthorn, located to the northeast of the house and northwest of the farm buildings, is an ornamental structure built around 1930. It was designed by Maxwell Ayrton for Sir Arthur Howard. The tower is constructed of exposed reinforced concrete, featuring bush-hammered finishes and a copper roof. It has a tapering shape divided into four stages, topped with a polygonal roof and a five-foot-wide external concrete staircase. The lower two stages have pointed arched windows, while the next stage houses the water tower. The top stage is a sun room with large casement windows that provide sunlight and views. This unique combination of a water tower and sun room showcases an architectural use of concrete by a notable designer, and it is part of a series of innovative concrete buildings on the estate.

Local climate

Water Tower and Sun Room at Wappingthorn to the North East of the House and to the North West of the Farm Buildings receives an average of 820 mm of rain a year. This makes it wetter than 51% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 87% of listed buildings.

It experiences an average of 14 freeze-thaw cycles a year, fewer than 87% 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.

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  2. Wappingthorn Farm Dairy Buildings, Including Silo Towers, Linking Wall and Circular Dairy Grade II 426 m
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  7. Horsebrook Cottage Grade II 950 m
  8. 1 and 2 Huddlestone Farmhouse Grade II 1.0 km
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