Grotto Lodge is a Grade II listed building in the Basingstoke and Deane local planning authority area, England. First listed on 18 May 1984. House.
Grotto Lodge
- WRENN ID
- winter-tin-flax
- Grade
- II
- Local Planning Authority
- Basingstoke and Deane
- Constituency
- North West Hampshire MP: Kit Malthouse (Con)
- Country
- England
- Date first listed
- 18 May 1984
- Type
- House
- Address
- Grotto Lodge, Highclere
- OS grid reference
- SU 434 573
- Coordinates
- 51.31394, -1.37772
- Source
- Historic England listing
Description
Grotto Lodge is a mid-19th century, three-storey circular house located in Highclere Park. It features a short two-storey corridor that connects to a circular stair turret, with a single-storey outshot attached to the south of the main section. The visible roofing is slate, topped by a lead cone above the stair turret. The building is constructed with flint walling and stone dressings, including coping on the main part and a castellated parapet on the middle section. The stair tower has an eaves band supported by brackets, and there is a first-floor band that runs around the entire building. The openings have flush frames, and there is a brick plinth at the base, which is slightly battered. The windows include lancet openings and casements, with sash windows on the ground floor. The doorways are arched and feature boarded doors. Additionally, there are cross-shaped 'arrow-slits' and a central octagonal castellated stack above the main block.
Local climate
Grotto Lodge receives an average of 770 mm of rain a year. This makes it drier than 63% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 55% 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.
More on this building
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- No EPC on record for this property
- No sale records on file
- No related consent applications matched
- 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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