Frog Grove Farm is a Grade II listed building in the Guildford local planning authority area, England. First listed on 2 March 1992. Farmhouse.
Frog Grove Farm
- WRENN ID
- pitched-barrel-hyssop
- Grade
- II
- Local Planning Authority
- Guildford
- Constituency
- Guildford MP: Zöe Franklin (LD)
- Country
- England
- Date first listed
- 2 March 1992
- Type
- Farmhouse
- Address
- Frog Grove Farm, Frog Grove Lane, Worplesdon
- OS grid reference
- SU 947 518
- Coordinates
- 51.25838, -0.64285
- Source
- Historic England listing
Description
Frog Grove Farm is a farmhouse that has been converted into a house. It dates back to the 17th century but was refaced in the late 18th century and extended around 1910. The exterior is made of red brick in Flemish bond, with tile hanging on the left return elevation. The roof is hipped and covered with plain tiles, featuring a central gutter. There are stacks located to the left of the center and on the return fronts, with additional stacks at the rear.
The entrance front has two storeys and a cellar on the right half, with a plinth. The original front consists of three bays, now featuring later 4-pane lights. There are two windows on each floor, with smaller central windows on the first floor that are now blocked. A hipped roof porch from the early 20th century has sash windows over brick dwarf walls, and there are double doors with modern locks. A plaque on the first floor center displays the date 1798 and the initials CEM, with a Sun Life Assurance plaque fixed below it.
To the left, there is a one-window bay extension with glazing bar sash windows, featuring a 9-pane window on the first floor and a 12-pane window below. A single-storey extension at the left end has two more 12-pane sash windows under gauged brick heads, and three windows in the curved return end of the extension. The rear elevation has a plat band over the ground floor, with leaded casement windows on the first floor and a mix of sash and casement windows below. There is a blocked door with an arched head to the left on the ground floor.
Inside, the main ground floor room features deep brick fireplaces under wood lintels, including a fine fireback displaying the coat of arms of the Comte de Paris. The interior also has six-panel doors, a fine chamfered spine beam with lamb's tongue stops, and chamfered joists. Other rooms contain simple late 18th century or early 19th century fire surrounds, and there is a simple stick baluster staircase. The fine dairy at the rear has brick floors and arched recesses for wall slabs. The first floor retains 17th-century floorboards.
Local climate
Frog Grove Farm sits in a drier-than-average part of the UK, with an average of 740 mm of rain a year. This makes it drier than 76% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 65% of listed buildings.
It experiences an average of 37 freeze-thaw cycles a year, more than 68% 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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