Summerhouse at Benarth Hall is a Grade II listed building in the Conwy local planning authority area, Wales. First listed on 28 December 1995. School.

Summerhouse at Benarth Hall

WRENN ID
narrow-rotunda-barley
Grade
II
Local Planning Authority
Conwy
Constituency
Bangor Aberconwy MP: Claire Hughes (Lab)
Country
Wales
Date first listed
28 December 1995
Type
School
Address
Summerhouse at Benarth Hall, Henryd
OS grid reference
SH 789 767
Coordinates
53.27422, -3.81727
Source
Cadw listing

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

Description

The summerhouse at Benarth Hall is a small, circular structure built around 1900. It features roughcast brick walls and a conical roof covered with small slates, topped with a lead ball finial. The eaves are feathered and supported by simply-moulded brackets. There are three 15-pane French doors that open to the east, west, and south. On the north side, there is a projecting segmental bay that used to function as an aviary, which includes two glazed top-lights and additional wire-meshed windows, along with a series of nesting niches on the inside of the external wall. To the east, there is a bowed terrace that overlooks the estuary, enclosed by Regency-style iron railings. Access to the aviary is available from this terrace and from the west through the French doors.

Local climate

Summerhouse at Benarth Hall sits in a wetter-than-average part of the UK, with an average of 1,100 mm of rain a year. This makes it wetter than 87% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 76% of listed buildings.

It experiences an average of 34 freeze-thaw cycles a year, fewer than 51% 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.

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