Property Prices in Castleknock
County Dublin · 1,796 sales (2021–2026)· 51st most expensive of 137 towns
The median property price in Castleknock is €545,000, 28% above the County Dublin median of €427,312. Prices rose 10.8% year-on-year. New builds command a 14.8% premium over second-hand properties. Castleknock ranks 51st most expensive out of 137 towns in Dublin.
Median Price
€545,000
+10.8% YoYCounty Rank
51st
of 137 towns
Total Sales
1,796
225 new · 1,571 second-hand
vs Co. Dublin
+28%
County median: €427,312
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