Street price history
Sion Hill, Blackrock, Dublin
24 recorded sales across 21 properties in Castledawson.
Part of Blackrock.
Recorded sales
24
Properties
21
Latest price
€980,000
Latest recorded sale 17 Jun 2026
Recent median
€685,000
Median full-market-price sale in the latest five-year window
Recorded price range
€270,000 – €980,000
Lowest to highest matched recorded sale
Recent activity
3 sales
Recorded in the latest 12 months
History covered
2010–2026
5-year median +56.6%
Explore this area
Price history
A year-by-year view of transactions OpenList has matched to Castledawson. Median prices exclude transactions explicitly marked as not full market price.
| Year | Recorded sales | Median price |
|---|---|---|
| 2026 | 2 | €800,000 |
| 2025 | 1 | €549,000 |
| 2023 | 1 | €475,000 |
| 2022 | 2 | €802,617 |
| 2021 | 1 | €620,000 |
| 2019 | 2 | €526,000 |
| 2018 | 2 | €367,500 |
| 2017 | 3 | €430,000 |
Recent transactions
The latest matched transactions are shown below. Repeat transactions are grouped into a property history where the underlying address identity is strong enough.
Sold 17 Jun 2026
SION HILL ROCK RD, Dublin
Sold price
€980,000
Property price timeline
17 Jun 2026 → Today
€980,000
17 Jun 2026
Recorded sale
€985,000
Index-adjusted today
Index-adjusted price today
€985,000
+0.5% since sale
Based on the CSO Dublin all residential properties index (1 Aug 2026).
Sold 8 May 2026
SION HILL ROCK ROAD, Dublin
Sold price
€620,000
Property price timeline
8 May 2026 → Today
€620,000
8 May 2026
Recorded sale
€626,000
Index-adjusted today
Index-adjusted price today
€626,000
+0.9% since sale
Based on the CSO Dublin all residential properties index (1 Aug 2026).
Sold 30 Sept 2025
SION HILL, Dublin
Sold price
€549,000
Property price timeline
30 Sept 2025 → Today
€549,000
30 Sept 2025
Recorded sale
€566,000
Index-adjusted today
Index-adjusted price today
€566,000
+3.1% since sale
Based on the CSO Dublin all residential properties index (1 Aug 2026).
Sold 10 Jan 2023
SION HILL, Dublin
Sold price
€475,000
Property price timeline
10 Jan 2023 → Today
€475,000
10 Jan 2023
Recorded sale
€571,000
Index-adjusted today
Index-adjusted price today
€571,000
+20.3% since sale
Based on the CSO Dublin all residential properties index (1 Aug 2026).
Sold 20 Dec 2022
SION HILL, Dublin
Sold price
€750,000
Property price timeline
20 Dec 2022 → Today
€750,000
20 Dec 2022
Recorded sale
€893,000
Index-adjusted today
Index-adjusted price today
€893,000
+19.0% since sale
Based on the CSO Dublin all residential properties index (1 Aug 2026).
Sold 29 Apr 2022
SION HILL, Dublin
Sold price
€855,234
Property price timeline
29 Apr 2022 → Today
€855,234
29 Apr 2022
Recorded sale
€1,060,000
Index-adjusted today
Index-adjusted price today
€1,060,000
+24.0% since sale
Based on the CSO Dublin all residential properties index (1 Aug 2026).
Sold 18 Feb 2021
SION HILL, Dublin
Sold price
€620,000
Property price timeline
18 Feb 2021 → Today
€620,000
18 Feb 2021
Recorded sale
€875,000
Index-adjusted today
Index-adjusted price today
€875,000
+41.1% since sale
Based on the CSO Dublin all residential properties index (1 Aug 2026).
Sold 15 Nov 2019
SION HILL, Dublin
Sold price
€607,000
Property price timeline
15 Nov 2019 → Today
€607,000
15 Nov 2019
Recorded sale
€862,000
Index-adjusted today
Index-adjusted price today
€862,000
+42.0% since sale
Based on the CSO Dublin all residential properties index (1 Aug 2026).
Sold 22 Oct 2019
SION HILL, Dublin
Sold price
€445,000
Property price timeline
22 Oct 2019 → Today
€445,000
22 Oct 2019
Recorded sale
€631,000
Index-adjusted today
Index-adjusted price today
€631,000
+41.7% since sale
Based on the CSO Dublin all residential properties index (1 Aug 2026).
Sold 27 Sept 2018
SION HILL, Dublin
Sold price
€350,000
Property price timeline
27 Sept 2018 → Today
€350,000
27 Sept 2018
Recorded sale
€490,000
Index-adjusted today
Index-adjusted price today
€490,000
+40.1% since sale
Based on the CSO Dublin all residential properties index (1 Aug 2026).
Sold 31 Jul 2018
SION HILL, Dublin
Sold price
€385,000
Property price timeline
31 Jul 2018 → Today
€385,000
31 Jul 2018
Recorded sale
€548,000
Index-adjusted today
Index-adjusted price today
€548,000
+42.4% since sale
Based on the CSO Dublin all residential properties index (1 Aug 2026).
Sold 21 Dec 2017
SION HILL, Dublin
Sold price
€625,000
Property price timeline
21 Dec 2017 → Today
€625,000
21 Dec 2017
Recorded sale
€921,000
Index-adjusted today
Index-adjusted price today
€921,000
+47.3% since sale
Based on the CSO Dublin all residential properties index (1 Aug 2026).
Local context
Continue into the wider Sion Hill sold-price market, or open Planning separately for local development context.
