Cedar House is a Grade II listed building in the Hertsmere local planning authority area, England. First listed on 20 May 1949. House. 6 related planning applications.

Cedar House

WRENN ID
first-screen-myrtle
Grade
II
Local Planning Authority
Hertsmere
Constituency
Hertsmere MP: Sir Oliver Dowden (Con)
Country
England
Date first listed
20 May 1949
Type
House
Address
Cedar House, Greyhound Lane, Potters Bar, South Mimms and Ridge, EN6 3PA
OS grid reference
TL 223 008
Coordinates
51.69296, -0.23176
Source
Historic England listing

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

Description

Cedar House is a house dating from the mid to late 18th century, with extensions and alterations made in the 19th and 20th centuries. It is constructed of yellow brick, with later additions in red brick, and has a slate hipped roof. The original three-bay front features a central entrance with a panelled door, a semi-circular fanlight, and a doorcase with slim pilasters and a bracketed, dentilled, moulded hood. Large 19th-century bay windows are set into the ground floor, and Venetian windows flank a central round-headed window on the first floor, all with glazing bar sashes. A coped parapet tops the facade. The house has been extended to the left, with an extruded stack on the front wall featuring decorative scrolls on the stepping up of the breast to the stack. A rounded angle marks the return on the extension to the right. The left return wall has a two-storey canted bay. To the rear left is a single-storey addition with a diagonally set entrance within a Neo-Georgian doorcase. Further rambling extensions to the right and rear incorporate a modillion eaves cornice and sash windows. The interior has not been inspected. The building has group value.

Local climate

Cedar House 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 91% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 90% of listed buildings.

It experiences an average of 33 freeze-thaw cycles a year, fewer than 54% of listed buildings. Of these, 15 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 — 1 transaction since 2020
  • Related listed building consents — 6 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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