30 and 32, Letty Green is a Grade II listed building in the East Hertfordshire local planning authority area, England. First listed on 24 November 1966. A C16 House. 4 related planning applications.

30 and 32, Letty Green

WRENN ID
grey-gargoyle-ridge
Grade
II
Local Planning Authority
East Hertfordshire
Constituency
North East Hertfordshire MP: Chris Hinchliff (Lab)
Country
England
Date first listed
24 November 1966
Type
House
Address
30 and 32, Letty Green, Hertingfordbury, SG14 2NZ
OS grid reference
TL 283 108
Coordinates
51.7813, -0.14056
Source
Historic England listing

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

Description

30 and 32 Letty Green is a house that has been divided into two dwellings. It dates back to the 16th century and was floored and heated in the 17th century. The building was extended and altered in the 19th century. It features a timber frame on a brick base with a roughcast exterior and a tiled roof. The structure has a three-bay open hall with a 19th-century cross wing on the right side.

The house is one storey and has an attic, while the cross wing is two storeys. There are two entrances in the hall range, each with plank doors that are sheltered by raking tiled hoods. These entrances lead to ridge stacks with diagonal shafts that were rebuilt in the 19th century. Between the entrances, there is a three-light flush frame diamond leaded light casement window, with two similar two-light windows to the left. The roof has two gabled dormers, and the left end is half hipped. The cross wing on the right has a taller ridge and features one bay of three-light diamond leaded light casements. The building also has exposed plates and purlins, with the right end containing two single-light casements and a secondary entrance on the left end. The interior has not been inspected.

Local climate

30 and 32, Letty Green 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 88% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 84% of listed buildings.

It experiences an average of 33 freeze-thaw cycles a year, fewer than 55% of listed buildings. Of these, 16 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
  • Sale history — 6 transactions since 1996
  • 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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