Latitude: 49.9585 / 49°57'30"N
Longitude: -6.3275 / 6°19'39"W
OS Eastings: 89730
OS Northings: 15462
OS Grid: SV897154
Mapcode National: GBR BXRS.QHP
Mapcode Global: VGYBY.89RM
Plus Code: 8CXMXM5C+CX
Entry Name: The Blockhouse
Listing Date: 14 December 1992
Grade: II
Source: Historic England
Source ID: 1219196
English Heritage Legacy ID: 62554
Also known as: Old Blockhouse
ID on this website: 101219196
Location: Old Grimsby, Isles of Scilly, Cornwall, TR24
County: Isles of Scilly
Civil Parish: Tresco
Lieutenancy Area (Ceremonial County): Cornwall
Church of England Parish: Isles of Scilly
Church of England Diocese: Truro
Tagged with: Fortification Blockhouse
TRESCO
SV81NE The Blockhouse
1358-0/1/119
II
Blockhouse. Probably 1548-52. Roughly coursed granite rubble.
Rectangular plan. Top of the platform is enclosed by walls,
originally surmounted by a parapet with embrasures. Stairs to
east. Winder stairs to original lean-to in south-east corner,
with plain granite open fireplace; remains of later room
constructed in south-east corner of platform. Covers Old
Grimsby Harbour, and is probably one of the blockhouses built
on Tresco under Sir Francis Fleming, and later John Kiligrew,
captain of Pendennis Castle, between 1548 and 1552. Scheduled
as an Ancient Monument.
(P Laws: The Buildings of Scilly: Redruth: 1980-: 6; B.H.
St.J.O'Neil: Isles of Scilly: London (HMSO): 1950-: 20).
Listing NGR: SV8973015462
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