21, High Street is a Grade II listed building in the North Hertfordshire local planning authority area, England. First listed on 13 April 1951. House. 3 related planning applications.

21, High Street

WRENN ID
twelfth-bracket-violet
Grade
II
Local Planning Authority
North Hertfordshire
Constituency
Hitchin MP: Alistair Strathern (Lab)
Country
England
Date first listed
13 April 1951
Type
House
Address
21, High Street, SG5 1AT
OS grid reference
TL 184 291
Coordinates
51.94829, -0.27824
Source
Historic England listing

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

Description

No 21 High Street is a late 18th-century house with two storeys, possibly built on the site of an earlier structure. The ground floor features a modern shop front and a covered passageway. The upper floor is plastered and ends in a parapet beneath a steep tiled roof that has square dormers. The facade above the ground floor is divided into two unequal sections, each with one window, fully plastered and separately bound with long-and-short quoins. The broader section includes a gently curved central bow that extends to the coping of the parapet, and the broad bow-window is of 19th-century three-light design. This building is part of a group that includes Nos 16 to 26 on the same street.

Local climate

21, High Street sits in a drier-than-average part of the UK, with an average of 720 mm of rain a year. This makes it drier than 82% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 76% of listed buildings.

It experiences an average of 35 freeze-thaw cycles a year, more than 60% 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.
  • No sale records on file
  • 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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Nearby listed buildings

  1. 22, High Street Grade II 5 m
  2. 20, High Street Grade II 9 m
  3. 19, High Street Grade II 17 m
  4. 11, Churchyard Grade II 17 m
  5. 6 and 7, Churchyard Grade II 20 m
  6. 5, Churchyard Grade II 25 m
  7. 4, Churchyard Grade II 27 m
  8. 14, Churchyard Grade II 27 m
  9. 17, High Street Grade II 31 m
  10. 15, Churchyard Grade II 35 m