Details

The monument includes the surviving remains of Sandsfoot Castle, a Tudor
artillery castle situated upon a prominent coastal headland in Weymouth Bay.
The castle formed part of a chain of forts built along the south coast during
the 1540s. Along with Portland Castle, it served to guard the anchorage
between Weymouth and Portland.
The castle is now ruined, but originally included a heavy gun emplacement,
quarters for a garrison and a magazine. The surviving remains comprise a
blockhouse or a rectangular two storeyed structure, set over a basement, with
an integrated tower at the north western (landward) end. The walls of the
blockhouse survive well, some almost to their original height, although much
of the facing blocks from the outer walls has been robbed. The castle is a
Listed Building Grade II*.
An octagonal gunroom was situated at the seaward end and was recorded by J H
Grimm in 1790, although this has since been lost to coastal erosion. By 1947
only the south western embrasure survived and this collapsed during the 1950s.
The castle is protected on the landward side by an outer earthwork which
survives along the north western, north eastern and south western sides. The
earthwork includes a bank 5m wide and about 0.7m high and an outer ditch 5m
wide and about 1.5m deep. The earthwork is first recorded in a survey of 1623,
when orders were made to repair the castle. A stone structure is also
mentioned in the 1623 report, but this no longer survives as an upstanding
feature and is most likely to have been built upon the bank.
The presence of the castle is recorded by Lord Russell's Survey of 1539,
although it was not mentioned in the list of the Royal fortresses compiled in
1540 and so may not have been completed at this time. The castle is known from
documentary sources to have cost 3887 pounds, 4 shillings, 1 pence, and a
gunner had been appointed by 1541. The castle was in poor repair by 1584, as
the eastern end had become undermined by the sea. Repair work was initiated to
the gun platforms, stables and the gate to the outer ward and a new bridge was
constructed to the outer gate. Further repairs were undertaken in 1610-11 and
dilapidation noted in the survey of 1623, when it was recommended that the
upper gun platform should be dismantled. At this time, the armament included
ten pieces of ordnance and the garrison comprised a Captain, Master Gunner,
four gunners and three men. The castle was held by Royalists during the Civil
War, but was later abandoned as a fort, although it continued in use as a
storehouse until at least 1691.
During World War II, Sandsfoot Castle is thought to have housed a Light Anti-
aircraft battery and formed part of the wider defences constructed at this
time in order to protect Portland Harbour.
The remains of the south western embrasure are now located on the beach to the
south east of the standing remains and this stonework is also included within
the scheduling.
All fence posts and gates relating to the modern boundaries, together with all
benches, litter bins and the structure of the footbridge are excluded from the
scheduling, although the ground beneath these features is included.

MAP EXTRACT
The site of the monument is shown on the attached map extract.

Source: Historic England

Reasons for Scheduling

Artillery castles were constructed as strong stone defensive structures
specifically to house heavy guns. Most date from the period of Henry VIII's
maritime defence programme between 1539 and 1545, though the earliest and
latest examples date from 1481 and 1561 respectively. They were usually sited
to protect a harbour entrance, anchorage or similar feature.
These monuments represent some of the earliest structures built exclusively
for the new use of artillery in warfare and can be attributed to a relatively
short time span in English history. Their architecture is specific in terms of
date and function and represents an important aspect of the development of
defensive structures generally.
Although documentary sources suggest that 36 examples originally existed, all
on the east, south and south east coasts of England, only 21 survive. All
examples are considered to be of national importance.

Despite some coastal erosion, Sandsfoot Castle survives comparatively well as
a ruined structure and associated earthwork remains. The blockhouse represents
one of the most substantial examples of this type of Tudor fortification to
survive in an unaltered state and it also contrasts with the contemporary site
at Portland Castle with which it was designed to guard the anchorage of
Weymouth Bay. The ruins at Sandsfoot Castle display many significant
architectural features and has attracted the interest of artists, who have
recorded the condition of the site over a long period. The surrounding
earthwork survives comparatively well and this, along with the interior of the
site, is likely to contain additional buried remains and associated deposits
which will contain important archaeological and environmental evidence
relating to the monument and the landscape in which it was constructed.
Sandsfoot Castle represents an early component of the coastal defences which
were developed in order to defend the anchorage of Weymouth Bay and,
subsequently, the harbour at Portland. Together, these coastal defences
represent one of the most significant groups to survive in England.

Source: Historic England

Sources

Books and journals
Historical Monuments in the County of Dorset: Volume I, (1970), 336-8
Historical Monuments in the County of Dorset: Volume I, (1970), 336-338
Other
Mention, RCHME, Twentieth Century Military Recording Project, (1998)

Source: Historic England