Tharbies is a Grade II listed building in the East Hertfordshire local planning authority area, England. First listed on 30 April 1985. House. 8 related planning applications.

Tharbies

WRENN ID
waiting-tower-sunrise
Grade
II
Local Planning Authority
East Hertfordshire
Constituency
Hertford and Stortford MP: Josh Dean (Lab)
Country
England
Date first listed
30 April 1985
Type
House
Address
Tharbies, Rook End Lane, High Wych, CM21 0LL
OS grid reference
TL 469 161
Coordinates
51.82471, 0.13017
Source
Historic England listing

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

Description

This is a house, likely dating back to the 17th century or earlier, with significant alterations in the late 17th and 18th centuries. The western portions of the house were plastered and rendered to resemble ashlar. It has very steep hipped roofs covered in old red tiles, with shaped rafters feet in the older parts.

The eastern front is a symmetrical five-window arrangement constructed of red brick in a Flemish bond pattern. This section, dating to the late 17th century, features a projecting plinth, a floor band, a steep hipped roof with a bellcast, two hipped dormers, and a modillioned eaves cornice. Current 19th-century cross-shaped windows may have replaced earlier cross windows; one original late 17th-century cross window survives on the western projecting wing. A substantial chimney is located on the front slope of the roof near the ridge, with an arched entrance passage where it passes through the chimney stack. Modern single-storey flat porch extensions have been added.

An 18th-century brick extension, also of two storeys, projects from the north side, featuring sandy red brick, a plinth, a floor band, a lower window with a segmental arched head, and an external gable chimney. The original house appears to have been oriented east-west, with a lower, two-storey, central projecting wing to the north. The later 17th-century southern extension created a L-shaped structure and refronted the eastern end of the older house. An 18th-century shallow extension to the north side of the front obscured the older northern wing of the original house.

Local climate

Tharbies sits in one of the driest parts of the UK, with an average of 700 mm of rain a year. This makes it drier than 92% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 89% of listed buildings.

It experiences an average of 34 freeze-thaw cycles a year, more than 50% 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 — 9 transactions since 2007
  • 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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