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

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

The Porthmadog property market recorded 58 residential sales in the 12 months to 31 May 2026, with a median sale price of £196,250. This places Porthmadog £8k above the Gwynedd county median of £188,000, and £89k below the approximate UK median of £285,000.

Prices in Porthmadog have shown strong growth, a year-on-year change of +7.8%. 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 £173,750 in Q3 2024 to £192,500 in Q4 2025, a change of +10.8% over 5 quarters. The most recent quarter is excluded because HM Land Registry registrations for it are still incomplete.

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

Detached homes in Porthmadog command £270,000, while flat properties are most accessible at £150,000. The £120k 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 £150,000 to £312,000 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 £196,250 and detached homes at £270,000, lenders can assess scheme viability with confidence.

A typical development finance facility for a scheme in Porthmadog with a GDV of £270,000 would attract senior debt of approximately £175,500 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 7.8% 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.