Assay Office Approx.20 Metres South West of Count House at King Edward Mine is a Grade II* listed building in the Cornwall local planning authority area, England. Assay office.

Assay Office Approx.20 Metres South West of Count House at King Edward Mine

WRENN ID
spare-slate-sorrel
Grade
II*
Local Planning Authority
Cornwall
Constituency
Camborne and Redruth MP: Perran Moon (Lab)
Country
England
Type
Assay office
OS grid reference
SW 663 389
Coordinates
50.20388, -5.27614
Source
Historic England listing

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

Description

The Assay Office, now used as a store, is located approximately 20 meters southwest of the Count House at King Edward Mine. It was likely built in the late 19th century and has undergone some alterations. The building features a weather-boarded east front and south end, while the rest is constructed of uncoursed rubble with a corrugated sheet roof. It is a small, single-storey structure with three bays. The first bay has double garage doors, the second and third bays have doorways, and there is a two-light window between them, which is partially boarded. Additionally, there is a fixed 8-pane window in the third bay and a cut-down chimney on the ridge at the junction of the second and third bays. A small opening is present in the rear wall. The interior has not been inspected. This building is part of a uniquely complete set of turn-of-the-century mine buildings on the site.

Local climate

Assay Office Approx.20 Metres South West of Count House at King Edward Mine receives an average of 880 mm of rain a year. This makes it wetter than 65% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 87% of listed buildings.

It experiences an average of 5 freeze-thaw cycles a year, fewer than 97% of listed buildings. Of these, 2 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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Nearby listed buildings

  1. Count House and Attached Smith's Shop at King Edward Mine Grade II* 27 m
  2. Dry House and Attached Carpenter's Shop Immediately to East of Count House (Etc) at King Edward Mine Grade II* 53 m
  3. Winding Engine House at South-East Corner of King Edward Mine Grade II* 85 m
  4. Wolf's Shaft Engine House Grade II 431 m
  5. Engine House on Site of Grenville United South Mine Grade II 459 m
  6. Fortescue's Shaft, North Engine House, on Site of Grenville United North Mine Grade II 467 m
  7. Lettered Stone on West Side of Old Road, Beside Engine House Grade II 473 m
  8. Pump Engine House on Site of Grenville United Mine Grade II 488 m
  9. Fortescue's Shaft, South Engine House on Site of Grenville United North Mine Grade II 491 m
  10. Vivian's Shaft Headframe, Great Condurrow Mine Grade II 528 m