Castles and forts

Portsmouth has been referred to as Britain’s “most fortified city”. Its location on the south coast made Portsmouth a frontier for kings and admirals defending Britain from foreign powers - and also liable to attack, meaning that protections were needed. Though any such dangers have long since receded, our fortifications still stand to this day – and are perfect for exploring.

Whether you want to stand on the same spot that Henry VIII once did, walk along ancient fortifications, or follow the defensive chain along Portsmouth’s coast, this is the section for you.

Number of results: 5

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Southsea Castle

Address

Southsea Castle, Clarence Esplanade, Southsea, Portsmouth, Hampshire, PO5 3PA

Telephone
+44 023 9284 1625

info@southseacastle.co.uk

Southsea, Portsmouth

Southsea Castle is now open to visitors (external areas and shop).
Spitbank Fort

Address

Solents Forts Port Office, Lock Keepers Cottage, Gunwharf Quays, Portsmouth, Hants, PO1 3FH

Telephone
+44 02392 513887

info@spitbankfort.com

Gunwharf Quays, Portsmouth

Spitbank Fort is an exclusive venue on the south coast, and is its own private island for hire, available for exclusive use, special events, private parties, wedding receptions, music videos and corporate hire.
Portchester Castle

Address

Castle Street, Portchester, Hampshire, PO16 9QW

Telephone
023 9237 8291

customers@english-heritage.org.uk

Portchester

Visit the Roman-Saxon shore fort with Norman additions - featuring a near-perfect keep and Norman church within the walls.
Round Tower

Address

Round Tower, Broad Street, Portsmouth, Hampshire, PO1 2LY

Telephone
+44 023 9282 7261

Portsmouth

The Round Tower is one of Portsmouth's oldest permanent fortifications.
Square Tower

Address

Broad Street, Portsmouth, Hampshire, PO1 2JE

Telephone
+44 0751 950 5785

enquiries@squaretower.co.uk

Portsmouth

The Square Tower is one of the oldest surviving parts of Portsmouth's fortifications, built to defend the city and harbour.