Frogmore House is a Grade I listed building in the Windsor and Maidenhead local planning authority area, England. First listed on 2 October 1975. House. 1 related planning application.
Frogmore House
- WRENN ID
- final-flue-cedar
- Grade
- I
- Local Planning Authority
- Windsor and Maidenhead
- Constituency
- Windsor MP: Jack Rankin (Con)
- Country
- England
- Date first listed
- 2 October 1975
- Type
- House
- OS grid reference
- SU 977 759
- Coordinates
- 51.4743, -0.59437
- Source
- Historic England listing
Description
Frogmore House is a Grade I listed building dating from around 1680, likely designed by Hugh May for his nephew Thomas. The house underwent alterations in the mid-18th century and was recased in 1792 by James Watt for Queen Charlotte. It features a stucco-faced central block with three stories and seven bays, flanked by lower wings. In the early 19th century, the house was enlarged with bow-fronted pavilions connected to the main block by one-storey portico links that have entablatures. The windows are fitted with glazing bar sashes, and there is a projecting eaves cornice beneath a hipped slate roof. The Tuscan colonnade on the ground floor of the main block was originally open but is now glazed. The east entrance front has a porte cochere with double columns. Inside, there is a grand staircase that splits into two return flights, featuring a wrought iron balustrade. One room has delicate paintings by Mary Moser, showcasing flower garlands on the walls and ceiling. A gallery on the first floor runs through the house from front to back and features Pompeian decoration, possibly done by Princess Elizabeth, the daughter of George III.
Local climate
Frogmore House sits in a drier-than-average part of the UK, with an average of 710 mm of rain a year. This makes it drier than 87% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 82% of listed buildings.
It experiences an average of 32 freeze-thaw cycles a year, fewer than 59% of listed buildings. Of these, 13 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 — 1 application
- 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
Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.
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- Bridge from Island Leading to Duchess of Kent's Mausoleum
- Range of Cowsheds Stabling Etc to West of the Home Farmhouse
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- Kiosk to South East of Cottage in Frogmore Grounds