Sissons is a Grade II listed building in the East Hertfordshire local planning authority area, England. First listed on 22 February 1967. House. 4 related planning applications.

Sissons

WRENN ID
small-roof-curlew
Grade
II
Local Planning Authority
East Hertfordshire
Constituency
North East Hertfordshire MP: Chris Hinchliff (Lab)
Country
England
Date first listed
22 February 1967
Type
House
Address
Sissons, Aspenden Road, Westmill, SG9 9LL
OS grid reference
TL 368 270
Coordinates
51.92515, -0.01177
Source
Historic England listing

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

Description

Sissons is a house dating from the early 18th century, and potentially incorporating earlier elements. It is constructed of red brick with blue headers and has steep-pitched roofs covered in old red tiles. The house is a long two-storey building facing east, with two projecting gabled rear wings. It may have originally been built as two separate houses. The right-hand side features a symmetrical five-window façade with a central door, while the left-hand side has a two-window façade with a door where a blank area of brickwork exists at the rear. The brickwork is uninterrupted across the front of the building and includes a chamfered plinth, projecting floorband, and fine gauged brick flat arches over slightly recessed boxed sash windows with glazing bars. The front door is made of six panels, with the top two panels glazed, and is set within a moulded doorcase featuring an entablature, swelled frieze, and dentilled triangular pediment. There is one central brick chimney and two end chimneys. A projecting gable stack is located on the south side, displaying tumbled brick offsets. Similarly tumbled brick kneelers are present on the gable parapets. A timber-framed tile privy is linked to the main house by a brick-on-end wall, positioned on the eastern boundary.

Local climate

Sissons sits in a drier-than-average part of the UK, with an average of 710 mm of rain a year. This makes it drier than 89% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 80% of listed buildings.

It experiences an average of 36 freeze-thaw cycles a year, more than 61% 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 — 1 transaction since 2016
  • Related listed building consents — 4 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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