FLAT HOLM PALMERSTON FORTS, FLAT HOLM ISLAND

Site Details



NPRN
300428
Map Reference
ST26SW
Grid Reference
ST22156481
Unitary (Local) Authority
Cardiff
Old County
Glamorgan
Community
Butetown
Type of Site
BATTERY
Broad Class
Defence
Period
Post Medieval;19th Century

Site Description

In 1865 The War Office purchased ten acres of land on Flat Holm; four batteries were built during the military occupation of 1866 to 1903:
1. Well Battery: had one open-backed Moncrieff gun-pit.
2. Farmhouse Battery: retains two Moncrieff gun-pits set under a common mound with a magazine between them.
3. Castle Rock Battery: Three Moncrieff gun-pits and magazine with integrated earthen banks running back behind it to protect the landward approaches.
4. Lighthouse Battery and Fort: Three Moncrieff gun-pits integrated with the defences enclosing the barracks, administrative buildings, and pre-existing lighthouse.

Flat Holm was re-occupied by the military during the Second World War and developed as an important and active anti-aircraft installation (nprn 407348).
RCAHMW, 20 July 2010.

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