Ongars is a Grade II listed building in the Uttlesford local planning authority area, England. First listed on 15 November 1976. House. 1 related planning application.

Ongars

WRENN ID
empty-barrel-ochre
Grade
II
Local Planning Authority
Uttlesford
Constituency
Harlow MP: Chris Vince (Lab)
Country
England
Date first listed
15 November 1976
Type
House
Address
Ongars, Dunmow Road, Hatfield Heath, CM22 7EE
OS grid reference
TL 526 154
Coordinates
51.81646, 0.21295
Source
Historic England listing

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

Description

Ongars is a house located on Dunmow Road in Hatfield Heath, dating from the late 16th century and 17th century. It features a timber frame and plastered exterior, with 20th-century pargetting. The roof is gabled and covered with peg tiles, and there are two lean-to extensions at the rear, also with peg tiles. The house has two storeys, a small off-centre ridge line stack, and a large 17th-century gable end stack with offsets. The front of the house displays a mix of 19th-century and 20th-century casement windows with small panes or central horizontal glazing bars, along with one double-hung sash window with small panes on the first floor. There are two flat hooded entrance doors. Inside, there is a late 16th-century former open hall featuring halved and bladed scarf joints and jowled posts, which was raised and altered in the 17th century, along with an inserted floor and an inglenook stack.

Local climate

Ongars sits in one of the driest parts of the UK, with an average of 690 mm of rain a year. This makes it drier than 95% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 91% of listed buildings.

It experiences an average of 34 freeze-thaw cycles a year, fewer than 52% 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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  • No EPC on record for this property
  • No sale records on file
  • Related listed building consents — 1 application
  • 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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