Property Prices in Portmarnock
County Dublin · 1,016 sales (2021–2026)· 27th most expensive of 137 towns
The median property price in Portmarnock is €665,000, 56% above the County Dublin median of €427,313. Prices fell 2.3% year-on-year. New builds command a 26.2% premium over second-hand properties. Portmarnock ranks 27th most expensive out of 137 towns in Dublin.
Median Price
€665,000
-2.3% YoYCounty Rank
27th
of 137 towns
Total Sales
1,016
477 new · 539 second-hand
vs Co. Dublin
+56%
County median: €427,313
Median Price Trend
Sales Volume
New vs Second-Hand Median
Price Distribution
Other Towns in Dublin
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Data from the Property Price Register · Last updated March 2026