Hillside is a Grade II listed building in the South Downs National Park local planning authority area, England. First listed on 11 May 1983. House. 3 related planning applications.

Hillside

WRENN ID
waning-passage-summer
Grade
II
Local Planning Authority
South Downs National Park
Constituency
Mid Sussex MP: Alison Bennett (LD)
Country
England
Date first listed
11 May 1983
Type
House
Address
Hillside, Underhill Lane, Hassocks, Mid Sussex, BN6 9PJ
OS grid reference
TQ 299 139
Coordinates
50.91082, -0.15359
Source
Historic England listing

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

Description

Hillside is an early 19th-century house of two storeys and three windows. It is constructed of painted brick with a modillion eaves cornice and a tiled roof. The windows are casement windows, and there is a trellised wooden porch with a curved head.

Local climate

Hillside receives an average of 830 mm of rain a year. This makes it wetter than 54% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 88% of listed buildings.

It experiences an average of 14 freeze-thaw cycles a year, fewer than 86% of listed buildings. Of these, 7 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 2012
  • Related listed building consents — 3 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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