Conwy Castle is a late-13th-century fortress built by Edward I on a rocky ridge above the River Conwy in North Wales, forming part of the same UNESCO-listed “iron ring” as Caernarfon, Harlech, and Beaumaris. It sheltered a deposed English king in his final days of freedom, was captured by rebels disguised as carpenters, and still stands ringed by a near-complete medieval town wall over three-quarters of a mile long. The castle is managed by Cadw, is open year-round, and sits in the heart of Conwy, a short walk from the town’s own railway station.

History of Conwy Castle

Edward I and the Building of Conwy Castle and Town Walls (1283–1287)

Conwy Castle was built on the orders of Edward I of England as part of his campaign to secure North Wales following the defeat of Llywelyn ap Gruffudd, the last native Prince of Wales, in 1282. Edward chose the site partly for its strategic position on the river and partly to displace the Cistercian abbey of Aberconwy that stood there, relocating the monks upriver to Maenan to make way for his new fortress and walled town.

The work was overseen by Master James of St George, the same Savoyard military architect responsible for Harlech, Caernarfon, and Beaumaris, and both castle and town walls were built together in a barely believable four years, from 1283 to 1287. The combined cost of the castle and its 1,400-yard (1.3km) ring of town walls came to roughly £15,000 — one of the largest single building projects of Edward’s entire Welsh campaign.

Unlike the fully concentric design used at Harlech and Beaumaris, Conwy follows the shape of its rocky outcrop, with eight great towers along a single high curtain wall dividing an outer ward from an inner ward. According to Cadw, the Welsh Government’s historic environment service, Conwy contains the most complete set of surviving medieval royal apartments anywhere in Wales, and restored spiral staircases still let visitors walk a full circuit of the battlements.

The Siege of Madog ap Llywelyn (1294–1295)

Conwy’s defences faced their first real test within a decade of completion. In the winter of 1294–95, Madog ap Llywelyn led a rebellion against English rule across Wales, and Edward I himself was besieged inside Conwy Castle for a time as the surrounding countryside fell to the rebels. The castle held, and Edward was relieved once supply ships were able to reach him via the river — an early demonstration of the value of Conwy’s riverside position.

Richard II’s Last Refuge (1399)

Richard II arrived at Conwy Castle in August 1399, having returned from campaigning in Ireland to find his cousin Henry Bolingbroke in open rebellion against him. On 12 August, Richard took shelter at Conwy and met Henry Percy, Bolingbroke’s emissary, to negotiate terms; Percy swore an oath in the castle’s chapel that Richard would come to no harm. Days later, on 19 August, Richard left Conwy under that promise and surrendered to Percy at Flint Castle, agreeing to abdicate in exchange for his life. He was taken to London and later died in captivity at Pontefract Castle; Bolingbroke was crowned Henry IV within weeks. Conwy Castle was, in effect, the last place an independently reigning Richard II ever stood as king.

The Capture by Rhys and Gwilym ap Tudur (1401)

Owain Glyndŵr’s national uprising broke out in 1400, and in March 1401 his cousins, the brothers Rhys and Gwilym ap Tudur, pulled off one of the most audacious feats of the entire rebellion. Disguised as carpenters arriving to carry out repairs, the brothers and around 44 men talked their way into Conwy Castle, killed the two watchmen on duty, and seized the fortress from inside — without a formal siege ever being needed. English forces quickly surrounded the castle in response, and after roughly three months the Tudur brothers negotiated a peaceful surrender rather than fight it out. Rhys was later captured and executed in 1412; Gwilym was pardoned. Their youngest brother’s grandson would go on to found the Tudor dynasty as Henry VII.

The English Civil War and Slighting (1642–1646)

Conwy Castle’s final military role came during the English Civil War, when it was held for King Charles I from 1642. Parliamentary forces eventually took the castle in 1646, and in the aftermath it was deliberately “slighted” — partially demolished to prevent it ever being used militarily again, a common fate for Royalist strongholds after the war. Left without a purpose or a garrison, Conwy fell into slow ruin over the following decades, the state in which it survives, remarkably intact, today.

UNESCO World Heritage Status

Conwy Castle and its town walls have been a UNESCO World Heritage Site since 1986, inscribed jointly with Caernarfon, Harlech, and Beaumaris castles under the listing “Castles and Town Walls of King Edward in Gwynedd.” Conwy’s walls are a defining part of that listing in their own right — at 1,400 yards and with 21 towers, they form one of the most complete surviving town-wall circuits in Europe. Both the castle and the walls are Grade I listed.

Visiting Conwy Castle: Practical Information

Opening hours: 9:30am–6pm from 1 July to 31 August; 9:30am–5pm from 1 March to 30 June and 1 September to 31 October; 10am–4pm from 1 November to 28 February. Closed 24, 25, 26 December and 1 January. Last admission is 30 minutes before closing.

Ticket prices: Adult admission is £13.50 from 1 June to 31 August 2026, dropping to £12.90 from 1 September 2026 to 31 March 2027. Seniors (65+) pay £12.10 / £11.60 across the same periods, and juniors (5–17) or students with photo ID pay £9.40 / £9.00. A family ticket (2 adults + up to 3 children) is £43.30 / £41.30, or £29.80 / £28.40 for one adult with up to 3 children. Disabled visitors and their companions go free, as do Cadw members and children under 5. A joint ticket covering Conwy Castle and nearby Plas Mawr is also available at a discount over buying separately. Booking online saves 5% on every ticket type.

Nearest station: Conwy railway station is around 0.6km (0.4 miles) from the castle, on the Crewe–Llandudno Junction/Holyhead line; Llandudno Junction, a larger interchange, is about 2km away.

Getting there by bus or car: Bus route 5 (Llandudno–Conwy–Bangor/Caernarfon) stops around 200 metres from the castle. By car, Conwy is reached via the A55 or B5106; there’s a short-stay pay-and-display car park immediately outside the visitor centre, with disabled spaces, plus a long-stay car and coach park just outside the town walls. The castle also sits directly on National Cycle Network Route 5.

How long to allow: Cadw doesn’t publish an official visit duration, but most visitors allow 1 to 1.5 hours to see the castle’s towers, royal apartments, and on-site exhibition — longer if the town walls are open and you plan to walk a stretch of them too.

Accessibility: Cadw rates Conwy’s terrain “Level 4 – Strenuous,” a step up from most other Welsh castles: the walk from the visitor centre to the castle itself is a steep 50-metre path with several steps, and the interior includes cobbled, uneven ground plus steep historic spiral staircases to the upper towers. Assistance dogs only are permitted March to October; dogs on short leads are welcome November to February. A portable induction loop and accessible toilets are available.

Facilities: Gift shop, accessible toilets with baby-changing facilities, a water refill station, free Cadw WiFi, bike storage, and a paid audio guide (£3 for non-members, free for Cadw members).

Who manages Conwy Castle (a common mix-up): Conwy Castle is managed by Cadw, the Welsh Government’s historic environment service — not English Heritage or the National Trust, both of which manage similarly named castles elsewhere in Britain and are frequently confused with Cadw by first-time visitors to Wales.

Current notice – town walls partially closed: As of writing, a short section of Conwy’s town walls between the Watch Tower and the Wing Gate is closed while Cadw carries out safety works (stronger railings and protective mesh). Cadw expects to reopen this section by Easter 2027 — check the official Cadw page before planning a full wall walk.

Nearby: Plas Mawr (0.2 miles), Britain’s finest surviving Elizabethan townhouse, bookable on a joint ticket with the castle; the rest of Conwy’s town walls (adjacent, partially closed — see notice above); and Capel Gwydir Uchaf (10.3 miles), a small 17th-century chapel with an unusual painted ceiling.

Practical details last verified against cadw.gov.wales on 30 August 2026.

Frequently Asked Questions

How much are Conwy Castle tickets?

Adult admission is £13.50 in summer (1 June–31 August 2026) and £12.90 from 1 September 2026 to 31 March 2027, with reduced rates for seniors, juniors, students, and families. A joint ticket with nearby Plas Mawr is also available at a discount, and booking online saves 5%.

What are Conwy Castle’s opening times?

Hours change through the year: 9:30am–6pm in July and August, 9:30am–5pm from March to June and September to October, and 10am–4pm from November to February. The castle is closed on 24–26 December and 1 January, with last admission 30 minutes before closing.

Can you still walk the full circuit of Conwy’s town walls?

Not currently. A short section between the Watch Tower and the Wing Gate is closed while Cadw carries out safety works, with reopening expected by Easter 2027. The rest of the 1,400-yard circuit remains open and is one of the best-preserved town-wall walks in Europe.

Was Conwy Castle ever captured?

Yes, though never by direct military assault. In 1401, Rhys and Gwilym ap Tudur, cousins of Owain Glyndŵr, talked their way inside disguised as carpenters and killed the watchmen, holding the castle for roughly three months before negotiating a peaceful surrender. It’s the only time Conwy changed hands by force in its working military history.

Is Conwy Castle part of a UNESCO World Heritage Site?

Yes. Conwy Castle and its town walls have been inscribed as a UNESCO World Heritage Site since 1986, grouped together with Caernarfon, Harlech, and Beaumaris castles under the listing “Castles and Town Walls of King Edward in Gwynedd.”

What is the nearest train station to Conwy Castle?

Conwy railway station is about 0.6km (0.4 miles) from the castle, on the Crewe–Llandudno Junction/Holyhead line. Llandudno Junction, a larger interchange with more frequent services, is around 2km away.

Is Conwy Castle accessible for wheelchairs and mobility scooters?

Conwy is one of Cadw’s more physically demanding sites, rated “Level 4 – Strenuous.” The path from the visitor centre to the castle is steep with several steps, and the interior includes uneven cobbled ground and steep historic staircases to the upper towers. Cadw recommends contacting the site in advance with specific accessibility questions.

Conwy is one of four castles in Edward I’s UNESCO-listed “iron ring” — see our Harlech Castle guide for another, browse more Castles & Historic Attractions guides, and visit the Wales hub for the full picture of the country’s history and best places to visit.