Castlegate House is a Grade II listed building in the South Kesteven local planning authority area, England. First listed on 20 April 1972. House. 2 related planning applications.

Castlegate House

WRENN ID
rusted-hinge-mallow
Grade
II
Local Planning Authority
South Kesteven
Constituency
Grantham and Bourne MP: Gareth Davies (Con)
Country
England
Date first listed
20 April 1972
Type
House
Address
Castlegate House, 49, Grantham, NG31 6SN
OS grid reference
SK 915 359
Coordinates
52.91362, -0.64027
Source
Historic England listing

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

Description

Castlegate House, located at 49 Castlegate, is a middle 18th century building. It is two stories high with attics and constructed from ashlar stone, topped with a slate roof. The façade features five windows with glazing bars and lintels that have keystones. The doorcase is adorned with panelled pilasters. Although the original dentilled cornice and shaped flat hood on brackets have been destroyed, there are plans to copy and replace them. The entrance includes a six-panelled door with a plain fanlight above it, and there are three gabled dormers. Inside, the house contains several panelled rooms from the same period. A photograph of the building is available in the National Monuments Record.

Local climate

Castlegate House 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 81% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 88% of listed buildings.

It experiences an average of 36 freeze-thaw cycles a year, more than 65% of listed buildings. Of these, 18 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 — 2 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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  1. 47 and 48, Castlegate Grade II 20 m
  2. 31 and 32, Castlegate Grade II 20 m
  3. 27, Castlegate Grade II 38 m
  4. 46, Castlegate Grade II 41 m
  5. Middlemore House Grade II 45 m
  6. 25 and 26, Castlegate Grade II 46 m
  7. Zion Chapel Grade II 60 m
  8. Granta Hall Grade II 104 m
  9. Garden Wall and Doorway at Grantham House Grade II* 117 m
  10. 15 and 16, Castlegate Grade II 120 m