Portmarnock house prices
Median sale price, year trend, rents, yields and recent sales for Portmarnock, drawn from official property data.
In brief
The median sale in Portmarnock in the 12 months to 11 September 2026 was €730,000, down 0.4 per cent on the year before, from 115 recorded sales. A typical rent is €2,315 a month as of Q4 2025, a gross yield of 3.8 per cent. The eight most recent sales on the register ran from €365,000 to €775,331.
House prices in Portmarnock
| Median price (12 months) | €730,000 |
|---|---|
| Year on year | -0.4% |
| Sales recorded (12 months) | 115 |
| New-build median | €865,000 |
| Second-hand median | €631,500 |
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 75 sales recorded to July 2026. Over the 12 months to 11 September 2026 the median was €730,000.
| Year | Median | Sales |
|---|---|---|
| 2023 | €642,831 | 129 |
| 2024 | €675,000 | 134 |
| 2025 | €727,500 | 146 |
| 2026 | €730,000 | 75 |
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 Portmarnock sales above.
Rents in Portmarnock
| Average rent (RTB), monthly Q4 2025 | €2,315 |
|---|---|
| Rent, year on year | -0.1% |
| 2 bed | €2,025 |
At these prices and rents, gross rental yield in Portmarnock is 3.8 per cent, or about 2.9 per cent net of typical costs.
What sold in Portmarnock
The latest of the 115 sales recorded near Portmarnock 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 |
|---|---|---|
| 9 Sept 2026 | 28 Carrickhill Rd, Portmarnock, Dublin | €638,000 |
| 3 Sept 2026 | 140 Carrickhill Rise, Portmarnock, Dublin | €677,000 |
| 27 Aug 2026 | 29 Seagrave, The Links, Portmarnock | €365,000 |
| 25 Aug 2026 | 127 Kelvin Close, Martello, Portmarnock | €730,000 |
| 24 Aug 2026 | 17 Greenview, Seabrook Manor, Portmarnock | €431,000 |
| 19 Aug 2026 | 11 Skylark Park Court, St Marnock'S Bay, Portmarnocknew | €775,331 |
| 13 Aug 2026 | 2 Carrickhill Walk, Portmarnock, Co Dublin | €710,000 |
| 13 Aug 2026 | 3 Skylark Park Drive, St Marnock'S Bay, Portmarnocknew | €665,198 |
Planning near Portmarnock
In the 12 months to 1 Sept 2026, 37 planning applications were granted in and around Portmarnock. See Dublin planning applications by district for live applications, decisions and refusals.
| Decided | Development | Units |
|---|---|---|
| 19 Aug 2026 | The development will consist of: (i) demolition of the existing rear g | – |
| 4 Aug 2026 | The development will consist of construction of a new two storey detac | – |
| 29 Jul 2026 | Planning Permission for attic conversion for storage dormer window to | – |
| 9 Jul 2026 | The development will consist of the following: (a) The conversion of t | – |
| 8 Jul 2026 | Conversion of existing attic space comprising of modification of exist | – |
Source: Irish Planning Applications, DHLGH ArcGIS FeatureServer, CC-BY 4.0. Grants within 7 km, keyed to the nearest tracked town.
More on Portmarnock
- Living in Portmarnock: schools, commute and what it is like to live there, with the calculators.
- Things to do in Portmarnock: 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 11 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.