The Grotto is a Grade II listed building in the West Berkshire local planning authority area, England. First listed on 14 April 1967. House. 4 related planning applications.

The Grotto

WRENN ID
south-niche-rook
Grade
II
Local Planning Authority
West Berkshire
Constituency
Reading West and Mid Berkshire MP: Olivia Bailey (Lab)
Country
England
Date first listed
14 April 1967
Type
House
Address
The Grotto, Reading Road, Basildon, RG8 9NE
OS grid reference
SU 600 795
Coordinates
51.51128, -1.1362
Source
Historic England listing

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

Description

The Grotto is a house that has been converted into a college. It was built in the late 18th century, with 19th-century additions at the rear. The exterior features white painted brick with a plinth and plat bands. The building has hipped slate roofs with coped parapets, lower roofs over the flanking wings, a truncated end stack on the left, a truncated ridge stack off-centre to the right, and a stack at the rear.

The central block consists of three storeys and three bays, with lower projecting wings on either side that are also three storeys tall and have two bays each. The central block has glazing bar sash windows with exposed wooden boxes, although the ground floor glazing bars have been removed. There is a 19th-century four-panelled door with an overlight located at the far left.

The left wing features glazing bar sash windows, with two on the second floor and one on the left side of the first and ground floors. There is also a glazing bar sash window on the ground and first floors of the quadrant. The right wing has a blank window on the left side of the first and second floors, and a blank window on the right side of the ground floor. To the left, there is a half-glazed door with a doorcase that has panelled reveals, supported by attached Ionic columns and topped with an open triangular pediment that features an eagle in the tympanum.

Inside, there is an octagonal inner hall with niches and delicate plasterwork, as well as 18th-century fireplaces in the ground floor rooms.

Local climate

The Grotto sits in a drier-than-average part of the UK, with an average of 730 mm of rain a year. This makes it drier than 79% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 71% of listed buildings.

It experiences an average of 35 freeze-thaw cycles a year, more than 55% 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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  • No EPC on record for this property
  • No sale records on file
  • Related listed building consents — 4 applications
  • Detailed attributes — period, style, materials, features
  • Flood risk assessment
  • 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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