Frogmore Cottage is a Grade II listed building in the North Hertfordshire local planning authority area, England. First listed on 8 February 1988. House. 8 related planning applications.

Frogmore Cottage

WRENN ID
nether-finial-furze
Grade
II
Local Planning Authority
North Hertfordshire
Constituency
Hitchin MP: Alistair Strathern (Lab)
Country
England
Date first listed
8 February 1988
Type
House
Address
Frogmore Cottage, Frogmore Bottom, King's Walden, SG4 8NW
OS grid reference
TL 175 228
Coordinates
51.89144, -0.29353
Source
Historic England listing

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

Description

Frogmore Cottage is a house dating to circa 1700. A short southern extension was added later, the front wall was heightened, and the thatched roof was replaced with red tiles and then bricked when the house was divided into two cottages in the 19th century. A northwestern extension was added in the later 20th century when the cottages were combined into a single house. The house has a timber frame, now cased in red brick, a stucco plinth, and a steep roof of old red tiles. It is a 1½-storey, three-cell house with an original lobby entry facing east. The front has three gabled dormers along the eaves and three windows, with a small window in the narrow southern bay. The windows are 2-light casements, and there is a plank door beside the central chimney. Internally, the house retains axial beams that support the floors, and exposed timbers in the partition between the north room and the middle room.

Local climate

Frogmore Cottage sits in a drier-than-average part of the UK, with an average of 720 mm of rain a year. This makes it drier than 82% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 76% of listed buildings.

It experiences an average of 35 freeze-thaw cycles a year, more than 60% of listed buildings. Of these, 17 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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  • Full EPC report — heating system, energy costs, size, glazing, construction etc.
  • Sale history — 3 transactions since 1997
  • Related listed building consents — 8 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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