Tunnels and Grotto Recess is a Grade II listed building in the Stroud local planning authority area, England. First listed on 1 December 1986. Tunnel.

Tunnels and Grotto Recess

WRENN ID
lone-porch-sienna
Grade
II
Local Planning Authority
Stroud
Constituency
Stroud MP: Dr Simon Opher (Lab)
Country
England
Date first listed
1 December 1986
Type
Tunnel
Address
Tunnels and Grotto Recess, North Nibley
OS grid reference
ST 738 969
Coordinates
51.67043, -2.37952
Source
Historic England listing

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

Description

The Tunnels and Grotto Recess is a Grade II listed structure located in Stancombe Park, North Nibley, built around 1860 for Reverend David Edwards. The construction features a combination of ashlar and roughly hewn marlstone, with brick-lined tunnels. The main tunnel is long and straight, ending at the north with a brick-shelved recess that contains fossils. Just south of this recess, two additional tunnels enter at angles, with a cross-vault at their junction and a central circular light-hole above. The tunnels are accessed through one of the angled entrances, both of which are framed by naturalistically hewn marlstone blocks. At the southern entrance, large raking buttresses made of ashlar marlstone provide support. The main tunnel is aligned with the Square Court and is part of a larger sequence of features within the extensive Regency and early Victorian landscaped park and pleasure garden.

Local climate

Tunnels and Grotto Recess receives an average of 790 mm of rain a year. This makes it drier than 56% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 50% of listed buildings.

It experiences an average of 36 freeze-thaw cycles a year, more than 64% of listed buildings. Of these, 16 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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