Porthmadog Property Market: House Prices, Sold Data & Development Finance, Q3 2026 Review

Porthmadog: Coastal town with Ffestiniog Railway heritage and holiday-let market demand.

The Porthmadog property market recorded 61 residential sales in the 12 months to 30 June 2026, with a median sale price of £200,000. This places Porthmadog £10k above the Gwynedd county median of £190,000, and £85k below the approximate UK median of £285,000.

Prices in Porthmadog have shown strong growth, a year-on-year change of +9.9%. Within Gwynedd, Porthmadog ranks 2nd by price out of 5 principal towns, and 5th by transaction volume.

On a quarterly view, Porthmadog median prices moved from £187,500 in Q1 2025 to £233,500 in Q2 2026, a change of +24.5% over 5 quarters.

Gwynedd, the local planning authority covering Porthmadog, approved 11 residential planning applications and refused 2 in Q3 2026 (1 July to 30 September 2026), with 58 still awaiting a decision. Too few decisions were captured in the period to state a reliable approval rate. Planning figures come from local planning authority records compiled by Landstack, retrieved on 3 October 2026. Councils and Landstack can take several days to publish decisions, so decisions made in the final days of Q3 2026 may not all be included yet.

Schemes approved in Q3 2026, together with those still awaiting a decision, propose around 384 homes, an estimated £73.2m of development value at local sale prices. Treat the unit total as an upper bound, since an outline permission and its reserved-matters application both count.

Gwynedd covers more than one town in Gwynedd, so these figures are authority-wide rather than specific to Porthmadog alone.

Property prices in Porthmadog vary significantly by type. The table below compares Porthmadog prices with Gwynedd county averages and UK national figures.

Semi-detached homes in Porthmadog command £312,000, while flat properties are most accessible at £155,000. The £157k spread between the most and least expensive types indicates a relatively compressed market where margins between types are tighter.

HM Land Registry has so far registered 0 new-build sales in Porthmadog for the past 12 months, 0.0% of registered transactions. New-build sales are typically registered 6 to 18 months after completion, so this understates current delivery and is not a completions figure.

Too few new-build sales have registered yet to quote a reliable new-build premium for Porthmadog.

Across the wider Gwynedd market, 1 new-build sales have registered so far. See our Gwynedd property market report for the full county picture.

The table below shows the most recently registered residential sales in Porthmadog, evidence of achieved prices for buyers, sellers and developers:

These transactions are sourced from HM Land Registry Price Paid data and represent completed, registered sales. The range from £155,000 to £423,500 illustrates the breadth of the Porthmadog market.

For developers considering Porthmadog, the local market data translates directly into finance structuring. With a median value of £200,000 and detached homes at £266,500, lenders can assess scheme viability with confidence.

A typical development finance facility for a scheme in Porthmadog with a GDV of £266,500 would attract senior debt of approximately £173,225 at 65% LTGDV. Mezzanine finance can stretch total borrowing to 85-90% of costs, while bridging loans enable rapid site acquisitions completing in as little as 5 working days.

With prices rising 9.9% year-on-year, Porthmadog presents a supportive environment for new development. Lenders view positive price momentum favourably when assessing loan applications.

Ready to develop in Porthmadog? Submit your scheme for indicative terms within 24 hours from our panel of 100+ lenders.

To put Porthmadog's market in context, the table below compares it with similarly-priced towns across Gwynedd:

For the full Gwynedd town-by-town breakdown, see our comprehensive Gwynedd property market report.