Office of the Saxonia Electrical Wire Company is a Grade II listed building in the Greenwich local planning authority area, England. First listed on 8 June 1973. Commercial. 1 related planning application.

Office of the Saxonia Electrical Wire Company

WRENN ID
spare-garret-moth
Grade
II
Local Planning Authority
Greenwich
Constituency
Greenwich and Woolwich MP: Matthew Pennycook (Lab)
Country
England
Date first listed
8 June 1973
Type
Commercial
Address
Office of the Saxonia Electrical Wire Company, Roan Street Se10
OS grid reference
TQ 381 775
Coordinates
51.48029, -0.01171
Source
Historic England listing

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

Description

The Office of The Saxonia Electrical Wire Company, originally the Roan School, is an 1808 building featuring two storeys and an attic, with three windows. It has a mansard roof covered with large slates and three flat dormers. The structure is made of yellow stock brick and has a parapet. The sash windows, which include glazing bars, are topped with gauged flat brick arches. A modern double door, which is wider than the original, is set in a round arched recess and features a similar arch. To the right, there is a one-storey, three-bay extension, also constructed of yellow stock brick, with a low pitched hipped slate roof. This extension has modern doors and windows. Above a small door on the right, there is a plaque that reads: "Erected AD 1808 Grey Coat School Founded 1677 MR JOHN ROAN By his will dated 16th March 1643 Devised certain estates the rents whereof were directed to be applied to the education and clothing of poor townsborn children of the parish of Greenwich. This tablet was set in 1835." The plaque also lists the names of the Vicar and churchwardens.

Local climate

Office of the Saxonia Electrical Wire Company 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 96% 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 34 freeze-thaw cycles a year, more than 52% of listed buildings. Of these, 15 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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