Castles · South West England
St Mawes Castle
In or near St Mawes.
St Mawes Castle — castle in Cornwall built in the 16th century.

Wikimedia Commons contributors — see linked file page for photographer and licence licence
Plan your visit
- Typical visit
- 1.5 h–3 h
- Nearest railway station
- Falmouth Docks · 2.3 km
- Paid entry
- Family-friendly
- Limited wheelchair access
Getting there & planning your visit
To visit St Mawes Castle, the nearest railway station is Falmouth Docks, located 2.3 km away. Entry is paid, and wheelchair accessibility is limited. The postcode for sat-nav is TR2 5DE.
About
St Mawes Castle is a castle in the United Kingdom — fortified architecture from the medieval, Tudor, or Victorian-revival period. Records date its origin to 1539. Heritage designation: scheduled monument. Owned by English Heritage. Managed by English Heritage. Part of Device Forts. Address: TR2 5DE. Wikidata describes it as: "castle in Cornwall built in the 16th century". Coordinates: 50.1554°, -5.0239°.
Photo gallery
See it from the streetimagery from 2024
Imagery © Mapillary contributors, CC BY-SA 4.0
Heritage listing
St Mawes Castle (Cornish: Kastel Lannvowsedh) is an artillery fort constructed by Henry VIII near Falmouth, Cornwall, between 1540 and 1542. It formed part of the King's Device programme to protect against invasion from France and the Holy Roman Empire, and defended the Carrick Roads waterway at the mouth of the River Fal. The castle was built under the direction of Thomas Treffry to a clover leaf design, with a four-storey central tower and three protruding, round bastions that formed gun platforms. It was initially armed with 19 artillery pieces, intended for use against enemy shipping, operating in partnership with its sister castle of Pendennis on the other side of the estuary.
From the Historic England List Entry under OGL v3.
Summary from the official site
St Mawes Castle, built by Henry VIII, is a historic fortress located in Cornwall. Visitors can explore its unique clover leaf shape, enjoy views from the battlements, and see a collection of historic guns and cannons.
Read more on the official property page.
Protected designations
- Site of Special Scientific Interest: Lower Fal & Helford Intertidal SSSI
- Area of Outstanding Natural Beauty: Cornwall
Designations sourced from Natural England open data under OGL v3.
From the Wikipedia article
St Mawes Castle (Cornish: Kastel Lannvowsedh) is an artillery fort constructed by Henry VIII near Falmouth, Cornwall, between 1540 and 1542. It formed part of the King's Device programme to protect against invasion from France and the Holy Roman Empire, and defended the Carrick Roads waterway at the mouth of the River Fal. The castle was built under the direction of Thomas Treffry to a clover leaf design, with a four-storey central tower and three protruding, round bastions that formed gun platforms. It was initially armed with 19 artillery pieces, intended for use against enemy shipping, operating in partnership with its sister castle of Pendennis on the other side of the estuary. During the English Civil War, St Mawes was held by Royalist supporters of King Charles I, but surrendered to a Parliamentary army in 1646 in the final phase of the conflict. The castle continued in use as a fort through the 18th and 19th centuries. In the early 1850s, fears of a fresh conflict with France, combined with changes in military technology, led to the redevelopment of the fortification. The out-dated Henrician castle was turned into a barracks and substantial gun batteries were constructed beneath it, equipped with the latest naval artillery. In the 1880s and 1890s an electrically operated minefield was laid across the River Fal, operated from St Mawes and Pendennis, and new, quick-firing guns were installed at St Mawes to support these defences. After 1905, however, St Mawes' guns were removed, and between 1920 and 1939 it was run by the state as a tourist attraction. Brought back into service in the Second World War, naval artillery and an anti-aircraft gun were installed at the castle to defend against the risk of German attack. With the end of the war, St Mawes again returned to use as a tourist attraction. In the 21st century, the castle is operated by English Heritage. The castle has elaborate, carved 16th-century decorations including sea monsters and gargoyles, and the…
Excerpt from Wikipedia under CC BY-SA 4.0. See the source article linked in Sources below.
Background
Architecture
St Mawes Castle is situated on a headland over the Carrick Roads, overlooked by higher land to the rear. At the top of the site is the entrance to the castle, the high-level gun batteries and the 16th-century Henrician Castle; the terraced site slopes down to the water, where gun batteries and the 16th-century blockhouse look out across the water.
Sourced from Wikipedia under CC BY-SA 4.0.
- Coordinates
- 50.1554, -5.0239
- District
- Cornwall
- Parish
- St. Just-in-Roseland
- Postcode
- TR2 5DE
- Parliamentary constituency
- Truro and Falmouth
- Phone
- 01326 270526
- Established
- 1539
- Nearest railway station
- Falmouth Docks — 2.3 km
- Opening
- Daily 10am–5pm; last entry at 4.30pm
- Official site
- www.english-heritage.org.uk
Sources
- wikidata: Q3662856 (CC0)
- wikipedia: St Mawes Castle (CC BY-SA 4.0)
- commons: St. Mawes Castle.jpg (CC BY-SA 4.0)
Other places nearby

St. Mawes Castle
Castles · 0.0 km

St. Mawes Coastal Battery
Historic houses · 0.2 km

St Mawes
Towns & cities · 0.5 km

St Mawes' Church, St Mawes
Historic churches · 0.6 km

Holy well of St Mawes, 80m east of St Mawes Methodist Church
Historic churches · 0.7 km

Carrick Roads
Harbours & ports · 0.9 km

Saint Mawes
Villages · 0.9 km

Cellars Beach
Beaches · 1.2 km

Great Molunan Beach
Beaches · 1.2 km

Great Molunan
Beaches · 1.2 km

Little Molunan
Beaches · 1.4 km

Place House
Stately homes · 1.6 km
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📷 5Frequently asked questions
- Where is St Mawes Castle?
- St Mawes Castle is in South-West England, United Kingdom (postcode TR2 5DE), in the parish of St. Just-in-Roseland.
- What is St Mawes Castle?
- St Mawes Castle — castle in Cornwall built in the 16th century.
- How do I get to St Mawes Castle?
- The nearest railway station is Falmouth Docks, about 2.3 km away. Drivers can use postcode TR2 5DE.
- When was St Mawes Castle built?
- Built or established in 1539.
- Who runs St Mawes Castle?
- St Mawes Castle is operated by English Heritage.
- Is St Mawes Castle a listed building?
- St Mawes Castle is officially recognised as scheduled monument listed.
- Is St Mawes Castle a protected site?
- Yes — St Mawes Castle is part of the Lower Fal & Helford Intertidal SSSI Site of Special Scientific Interest and the Cornwall National Landscape (AONB).
- Does St Mawes Castle charge admission?
- St Mawes Castle typically charges admission. Check the official site for current ticket prices and opening hours.