Hoo Farmhouse and Walls of Attached Walled Gardens to South is a Grade II listed building in the North Hertfordshire local planning authority area, England. First listed on 8 February 1988. House. 2 related planning applications.

Hoo Farmhouse and Walls of Attached Walled Gardens to South

WRENN ID
still-span-evening
Grade
II
Local Planning Authority
North Hertfordshire
Constituency
Hitchin MP: Alistair Strathern (Lab)
Country
England
Date first listed
8 February 1988
Type
House
Address
Hoo Farmhouse and Walls of Attached Walled Gardens to South, Codicote Road, St. Paul's Walden, SG4 8AE
OS grid reference
TL 192 201
Coordinates
51.86742, -0.26948
Source
Historic England listing

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

Description

Hoo Farmhouse is a house dating from the late 17th century, with outhouses at the rear that connect to an early 19th-century dairy. It is constructed of red brick with some black headers in a Flemish bond pattern and features a steep old red tile roof that extends over an integral outshut at the back. The house is two stories tall with attics and faces east, adjacent to a 3-meter high common north wall of two contemporary walled gardens to the south.

The building has a plinth, a plat-band, and a corbelled eaves course with projecting headers. The symmetrical front has three windows, each with 2-light lattice casement windows set in heavy frames. The central door, accessed by four stone steps, features a heavy moulded oak frame with a double ovolo design. A similar moulding is found on the plank door, which has a lozenge pattern of applied battens. There is a cast iron gate with steps leading to a side passage at the northeast corner. The farmhouse has two large chimneys on the rear roofslope and a plank door to the rear also in a heavy moulded frame. The dairy includes a large round-headed window on the north side.

Local climate

Hoo Farmhouse and Walls of Attached Walled Gardens to South 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.
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  • Related listed building consents — 2 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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