Short-term letting in Gwynedd: Eryri, Llŷn and the coast

Eryri, Llŷn and the Cardigan Bay coast

Gwynedd is one of the strongest holiday markets in Wales. Yr Wyddfa and the Eryri National Park attract climbers and walkers all year; the Llŷn Peninsula, with Abersoch, Aberdaron and Nefyn, draws families and sailors; Caernarfon and Harlech offer castles; Barmouth, Porthmadog and Pwllheli serve the coast. It is also where the debate over second homes and Welsh-speaking communities is sharpest, which shapes the local rules.

The Gwynedd Article 4 has gone, but not everywhere

In 2024 Cyngor Gwynedd confirmed an Article 4 direction requiring planning permission to turn a main home into a second home or holiday let. On 27 November 2025 the High Court quashed that decision, and on 6 February 2026 permission to appeal was refused, ending the litigation. Across the council's planning area, the permitted development rights between the Welsh use classes C3, C5 and C6 are therefore restored. The picture is different inside the national park: the Eryri National Park Authority's own Article 4 direction has applied since 1 June 2025, so switching a home to holiday-let use there still needs planning permission.

Registration, licensing and levy

As everywhere in Wales, providers of stays of 31 nights or fewer must join the Welsh Revenue Authority register, open since 1 October 2026, by 31 March 2027. It is free, and non-registration carries escalating penalties. A licensing regime under the 2026 Act is scheduled by default for March 2030. Gwynedd has not introduced the visitor levy; so far only Cardiff has.

Council tax premium and the 182-day threshold

Gwynedd charges a 150% premium on furnished homes that are nobody's main residence, a rate in place since April 2023 and kept for 2026/27. Moving to business rates requires 252 days available and 182 days let each year; the Welsh Government is consulting until 23 October 2026 on softening that threshold.

Our advice

Establish first whether the property is inside Eryri or under the council's planning control; that single fact changes the answer. Then test the 182-day threshold honestly. Tell us about the property: we study every request and tell you honestly whether and how we can help.

Railways, slate and white water

Gwynedd has an unusual concentration of heritage railways. The Snowdon Mountain Railway climbs from Llanberis to the summit of Yr Wyddfa; the Ffestiniog and Welsh Highland lines run from Porthmadog into the mountains. Nearby, Portmeirion, the Italianate village on the estuary at Penrhyndeudraeth, draws day visitors and wedding parties.

The slate landscape of north-west Wales became a World Heritage Site in 2021, and old quarries have been turned into attractions: the zip lines above Penrhyn Quarry at Bethesda and the National Slate Museum at Llanberis. In the south of the county, Dolgellau is the base for Cadair Idris, and the Mawddach Trail follows the estuary to Barmouth for cyclists and walkers. The National White Water Centre on the Tryweryn near Bala offers rafting on dam-released water, and Bala Lake draws sailors.

• Bangor, with its university and Ysbyty Gwynedd hospital, generates academic and medical stays outside the holiday season.
• Bardsey Island (Ynys Enlli), reached by boat from the end of Llŷn, attracts pilgrims and birdwatchers who need a night before crossing.

Two practical points: the Pen-y-Pass car park at the foot of the Snowdon paths works on pre-booking, and the Sherpa bus serves the main trailheads, so walkers need clear instructions. And in a county where Welsh is the everyday language of many communities, a bilingual welcome and house manual is a sign of respect that local neighbours and many guests notice.