Shell Grotto Approximately 45 Metres North West of St Audries School is a Grade II listed building in the Somerset local planning authority area, England. First listed on 16 November 1984. Grotto.
Shell Grotto Approximately 45 Metres North West of St Audries School
- WRENN ID
- endless-pedestal-harvest
- Grade
- II
- Local Planning Authority
- Somerset
- Constituency
- Tiverton and Minehead MP: Rachel Gilmour (LD)
- Country
- England
- Date first listed
- 16 November 1984
- Type
- Grotto
- OS grid reference
- ST 110 423
- Coordinates
- 51.17381, -3.27381
- Source
- Historic England listing
Description
The Shell Grotto, located approximately 45 metres northwest of St. Audries School, dates from the 1830s or 1840s and is possibly the work of Richard Carver of Taunton. It is constructed from random rubble made of assorted local stones and features inset ammonites, although it was almost completely covered by ivy during the survey in August 1983. The grotto has a roughly oval shape, with its entrance on the east front and lighting coming from the west and south fronts. It includes pointed arched windows with damaged tracery, which are also obscured by ivy. Access to the entrance is via an irregular flight of four steps, alongside a ledge that serves as a seat to the left. The entrance features a patterned pebble threshold similar to one found inside the grotto, and a pointed arched doorway with octagonal diamond and divided tracery, likely from the mid-19th century. The interior, which was only partially viewed, appears to have a cross-vaulted ceiling with a central pendent and subsidiary ones, some of which terminate in shells. The walls are encrusted with shells, including those not found in local waters, along with ammonites and mineral samples. The floor is made of patterned pebbles. At the time of the survey, the grotto was generally in poor condition.
Local climate
Shell Grotto Approximately 45 Metres North West of St Audries School receives an average of 940 mm of rain a year. This makes it wetter than 71% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 79% of listed buildings.
It experiences an average of 20 freeze-thaw cycles a year, fewer than 79% of listed buildings. Of these, 8 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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