Numbers 21 (The Gables) and 21a is a Grade II listed building in the Breckland local planning authority area, England. First listed on 10 March 1971. Office. 1 related planning application.
Numbers 21 (The Gables) and 21a
- WRENN ID
- fallow-pinnacle-summer
- Grade
- II
- Local Planning Authority
- Breckland
- Constituency
- South West Norfolk MP: Terry Jermy (Lab)
- Country
- England
- Date first listed
- 10 March 1971
- Type
- Office
- Address
- Numbers 21 (The Gables) and 21a, Old Market Street, Thetford
- OS grid reference
- TL 873 827
- Coordinates
- 52.4107, 0.75288
- Source
- Historic England listing
Description
Numbers 21 (The Gables) and 21A is a mid-19th century maltmaster's house that has been converted into offices. The building is constructed of gault brick and features a roof made of diamond composite slates. It has two storeys and an attic, arranged in seven bays, with the central five bays projecting forward beneath a wide pediment.
The central entrance door has two tall fielded panels and is framed by a doorcase supported by Tuscan columns with reeded and fluted necks, topped with block entablatures and an open pediment. The windows are horned sashes without glazing bars, set under gauged skewback arches. On the first floor, there is an added early 20th-century bay window. The pediment contains a modified Venetian window, featuring an arched center with glazing bars and rectangular blind windows on either side. The building has a gabled roof behind a parapet.
To the left of the main elevation, a pedestrian entrance leads to a single-storey rear wing (The Gables), which is also used as offices. This wing has an open-pedimented doorway and 20th-century casement windows, with a gabled roof covered in black-glazed pantiles.
Local climate
Numbers 21 (The Gables) and 21a 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 99% of listed buildings.
It experiences an average of 31 freeze-thaw cycles a year, fewer than 62% 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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- Full EPC report — heating system, energy costs, size, glazing, construction etc.
- 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
Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.
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