Description

GWENNAP
SW 74 SW
4/94 Consolidated Mines, Engine House
21.11.85
GV II
Beam engine house ruin. Circa early C19. Killas rubble with granite voussoirs, some
jambstones, and lintel to ground floor, east, otherwise wooden lintels and wooden
bearing pads for floors. Rectangular plan with thicker bob wall to north, surviving
to full 2 floor height, formerly timber studded gable over. Originally with 3
floors. South wall partly built into bank is mostly fallen. West wall ½ fallen.
East wall survives at north end to full 3 floor height, with 1 window to ground
floor, right and 2 windows to first floor (left window blocked).
Bob wall has arched ground floor opening with dressed granite jambstones and
voussoirs. Designed for load bearing, outer half of doorway is narrower with
segmental arch and projecting keystone. Inner half of doorway, also with abutment,
has complete round-headed arch. (Compare east engine house of Cusvey Mine qv).
Timber floor bearing pads over.
Detached chimney to south at higher level, (separate item).
Part of the Consols Mine which was Cornwall's most productive mine in the early C19.
From 1823 to 1825 the Consolidated Mines produced 12½% of the total copper of Great
Britain, and 15-25% of the Cornish total. Extract from History of Gwennap by C.C.
James.

Listing NGR: SW7455242092

External Links

• Historic England Listing
• Wikidata Q26429684

External links are from the relevant listing authority and, where applicable, Wikidata. Wikidata IDs may be related buildings as well as this specific building. If you want to add or update a link, you will need to do so by editing the Wikidata entry.

Recommended Books

• 
  Surrey (The Buildings of England) (Pevsner Architectural Guides: Buildings of England)
• 
  For the Record
• 
  Old House Care and Repair
• 
  [(Bedfordshire, Huntingdon and Peterborough)] [By (author) Nikolaus Pevsner] published on (January, 1968)
• 
  Worcestershire Revised Edition (Buildings of England) (Pevsner Architectural Guides: Buildings of England)
• 
  Northamptonshire: Buildings of England Series (Pevsner Architectural Guides) (Pevsner Architectural Guides: Buildings of England)