Castleknock house prices
Median sale price, year trend, rents, yields and recent sales for Castleknock, drawn from official property data.
In brief
The median sale in Castleknock in the 12 months to 25 September 2026 was €607,250, up 15.4 per cent on the year before, from 212 recorded sales. A typical rent is €2,192 a month as of Q4 2025, a gross yield of 4.3 per cent. The eight most recent sales on the register ran from €470,000 to €2,450,000.
House prices in Castleknock
| Median price (12 months) | €607,250 |
|---|---|
| Year on year | +15.4% |
| Sales recorded (12 months) | 212 |
| New-build median | €898,190 |
| Second-hand median | €590,000 |
Each point is the median of that calendar year's open-market sales on the Property Price Register. 2026 is a part year, covering the 145 sales recorded to July 2026. Over the 12 months to 25 September 2026 the median was €607,250.
| Year | Median | Sales |
|---|---|---|
| 2023 | €535,000 | 227 |
| 2024 | €506,075 | 250 |
| 2025 | €596,000 | 242 |
| 2026 | €590,000 | 145 |
For wider context, the CSO Residential Property Price Index puts the median for Fingal at €492,000, up 3.7% year on year (July 2026). The CSO figure covers a wider area than the Castleknock sales above.
Rents in Castleknock
| Average rent (RTB), monthly Q4 2025 | €2,192 |
|---|---|
| Rent, year on year | +5.8% |
| 2 bed | €2,034 |
| 3 bed | €2,326 |
| 4+ bed | €2,913 |
At these prices and rents, gross rental yield in Castleknock is 4.3 per cent, or about 3.4 per cent net of typical costs.
What sold in Castleknock
The latest of the 212 sales recorded near Castleknock on the Property Price Register in the last 12 months. The register updates weekly, roughly two months ahead of the official averages.
| Date | Address | Price |
|---|---|---|
| 25 Sept 2026 | 113 Georgian Village, Castleknock, Dublin 15 | €2,450,000 |
| 24 Sept 2026 | 143 Park Drive Avenue, Castleknock, Co Dublin | €470,000 |
| 24 Sept 2026 | 27 Luttrel Park Drive, Castleknock, Dublin 15 | €500,000 |
| 23 Sept 2026 | 62 Park Drive Green, Castleknock, Dublin 15 | €590,000 |
| 22 Sept 2026 | 3 Phoenix Place, Castleknock, Dublin 15 | €815,000 |
| 16 Sept 2026 | 3 Riverwood Square, Castleknock, Dublin 15 | €600,000 |
| 14 Sept 2026 | 37 Castleknock Crescent, Laurel Lodge, Castleknock | €526,000 |
| 14 Sept 2026 | 91 Castleknock Elms, Castleknock, Dublin 15 | €545,000 |
Planning near Castleknock
In the 12 months to 6 Oct 2026, 36 planning applications were granted in and around Castleknock. See Dublin planning applications by district for live applications, decisions and refusals.
| Decided | Development | Units |
|---|---|---|
| 7 Sept 2026 | The development will consist of an attic conversion with new stair acc | – |
| 31 Aug 2026 | Planning Permission is sought for: Construction of single storey dini | – |
| 27 Aug 2026 | Alteration/extension of the existing two storey detached house at 146 | – |
| 20 Aug 2026 | Planning Permission for the demolition of the existing single-storey i | – |
| 6 Aug 2026 | Planning Permission for 3 no. 3-bed apartments and 1 no. 2-bed apartme | – |
Source: Irish Planning Applications, DHLGH ArcGIS FeatureServer, CC-BY 4.0. Grants within 7 km, keyed to the nearest tracked town.
More on Castleknock
- Living in Castleknock: schools, commute and what it is like to live there, with the calculators.
- Things to do in Castleknock: attractions, heritage sites and walks nearby.
- What's on in Co. Dublin: festivals, markets and gigs, grouped by week and refreshed every Monday.
- Dublin planning applications by district: what has been lodged, granted and refused in the last 12 months.
- Co. Dublin house prices: every town in the county, side by side.
- Nearby: Balbriggan, Blackrock, Booterstown, Cabinteely, Citywest, Dalkey.
Property Price Register sales to 25 September 2026, CSO RPPI to July 2026, RTB rents to Q4 2025. How we compute these figures
Source: Property Price Register for sales, CSO RPPI (HPM05/HPM09) for year-on-year context, and RTB (RIQ02) for rents, which the RTB publishes as an average monthly rent for the quarter shown. The medians on this page adjust new-build prices for VAT. The individual sale records listed above are shown exactly as the register holds them, which for a new build is the price before VAT. The latest recorded year is partial. See ourmethodology for how these figures are computed.