Block House Point

In the civil parish of St Marys.
In the historic county of Isles of Scilly (Modern Authority of Isles of Scilly, 1974 county of Isles of Scilly).

Remains of a blockhouse, consisting of three sides of a rectangular building, the fourth side apparently destroyed, with overall dimensions of 13m by 11m. The walls are of dry-stone now covered by earth, 1.0m thick. 0.8m high on the interior, 0.9m on the exterior. The interior was obviously. Although incorporated in the Civil War breastworks by a funneled approach and probably utilized in that period, the blockhouse is possibly older. It uses large blocks of roughly dressed stone similar to C16 blockhouse on Tresco.

This site has been described as a;
Artillery Fort.
The confidence that this site is a medieval fortification or palace is Possible.
Masonry ruins/remnants remains.

This site is a scheduled monument protected by law.

The Ordnance Survey Map Grid Reference is SV92391249

Modern Map from

Good for landscape form and features

Modern Map from

Good for general location

Air Photo from

1st edition OS Map from

Sources of information, references and further reading

PastScape number; 304140

Journal Articles

Saunders, A.D. and Miles, T.J., 1970, 'King Charles's Castle, Tresco, Scilly' Post-Medieval Archaeology Vol4 p1-30

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This record last updated on Friday, April 6, 2007

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