Photo: Gpwitteveen · CC BY-SA 3.0At a median €680,000, homes in Portmarnock cost 94% more than in the typical Irish town
The median home in Portmarnock sells for €680,000. That is the middle of 411 market sales on the Property Price Register from 2023 to 2025. Prices are up 79% on 2015. Rent, income and the Cost of living Grade are on Portmarnock’s cost of living page.
62% of the homes sold in Portmarnock were second-hand
411 market sales in three years: 157 new homes and 254 second-hand. At the median a new home sold for 10% more.
median sale · 157 sold in 3 years
- 2025 median
- €820K 60 sold
- 2022 to 2025
- +37%
- the typical Irish town
- €419K
median sale · 254 sold in 3 years
- 2025 median
- €665K 89 sold
- 2022 to 2025
- +9.9%
- the typical Irish town
- €326K
median sale · 411 sold in 3 years
- Middle half
- €530K–€804K
- Last 12 months
- €735K 117 sold
- the typical Irish town
- €350K
38% of the sales were new homes
Market sales on the Property Price Register, 2023–25. The register says whether a home was new or second-hand, not its type or size. New homes are filed without VAT; we add back 13.5%. A median needs 30 sales.
Half of Portmarnock’s homes sold for between €530K and €804K
One sale in ten was under €380K and one in ten over €900K. 1% sold for under €250K and 77% for €500K or more.
The median, €680,000, sits in the €500–750K band
411 market sales, 2023–25, VAT included. Each bar is the number sold in that price band; the darker bar holds the median.
Prices are up 79% on 2015, a slower rise than the typical Irish town’s
From €365,000 in 2010 to €725,000 in 2025, each the median of that year’s market sales.
More homes sell than in most years
149 homes sold in 2025. The busiest year was 2018, with 172, and the quietest 2011, with 32.
Portmarnock costs more than the typical Irish town
Each year’s median sale: the town, the middle of County Dublin’s towns of 2,500 or more, and the typical Irish town.
New homes and second-hand, year by year
| 2010 | 2015 | 2020 | 2025 | |
|---|---|---|---|---|
| All homes | €365K | €405K | €548K | €725K |
| Typical Irish town | €220K | €170K | €261K | €388K |
| New homes | — | — | €552K | €820K |
| Second-hand homes | €365K | €417K | €547K | €665K |
Calendar years; a year’s median needs 30 sales of the kind, so a dash is a year with fewer.
Property Price Register: every market sale placed in the town since 2010, VAT included; a year’s median needs 30 sales. Sales whose address names no town aren’t counted.
38% of the homes sold in Portmarnock in three years were new
157 new homes and 254 second-hand ones sold from 2023 to 2025, by the register’s own split.
40% of the homes sold in 2025 were new
Calendar years with 10 or more sales. The share peaked at 56% in 2022.
A new home sold for a median €710,000
against €643,000 for a home sold on, 10% more, over three years. New homes are often a different mix from the homes sold on, so part of the gap is size and type.
Filed without VAT
Most new homes are filed on the register without VAT. Every figure here adds back 13.5%, so new and second-hand compare like for like.
Property Price Register, 2023–25: 157 new and 254 second-hand market sales. New homes are filed without VAT; we add back 13.5%.
Drumnigh Manor is Portmarnock’s busiest street or estate, with 97 sales in three years
15 streets and estates had 5 or more sales from 2023 to 2025, 9 of them ten or more.
| # | Street or estate | Sales | Median | Homes |
|---|---|---|---|---|
| 1 | Drumnigh Manor | 97 | €690,000 | Mostly new |
| 2 | St Marnock's Bay | 45 | €705,000 | Mostly new |
| 3 | The Links | 30 | €385,000 | Second-hand |
| 4 | Drumnigh Road | 17 | €885,000 | Mostly new |
| 5 | Station Road | 17 | €378,000 | Second-hand |
| 6 | Seabrook Manor | 16 | €371,200 | Second-hand |
| 7 | Drumnigh Wood | 13 | €900,000 | Second-hand |
| 8 | Torcaill | 12 | €670,000 | Second-hand |
| 9 | St Annes Square | 11 | €500,000 | Second-hand |
| 10 | Ardilaun | 9 | €730,000 | Second-hand |
| 11 | Carrickhill Rise | 9 | €655,000 | Second-hand |
| 12 | Strand Road | 9 | €805,000 | Second-hand |
| 13 | The Dunes | 7 | €950,000 | Second-hand |
| 14 | Church Avenue | 5 | €445,000 | Mixed |
| 15 | Drumnigh Oaks | 5 | €885,000 | Mostly new |
The Dunes: €950,000
Seabrook Manor: €371,200
At the median, the dearest costs 2.6 times the cheapest.
Streets and estates with 5 or more market sales from 2023 to 2025, named as the register’s addresses name them; medians only.
Portmarnock is the 18th most expensive of 118 towns in County Dublin
Portmarnock is one of County Dublin’s dearest towns to buy in; the typical Irish town’s median is €350,000.
Towns of 1,000 or more in County Dublin, by their median home of 2023–25; * marks a routing-key median (fewer than 30 sales in the town). Each links to its own Housing page.
Cheaper nearby: Clongriffin, Baldoyle and Belmayne.
The towns around Portmarnock: their median home (2023–25), market sales on the Property Price Register in those three years, the change in ten years and the distance.
| Town | Median sale | Sales, 3 years | Since 2015 | km |
|---|---|---|---|---|
| Portmarnock | €680K | 411 | +79% | |
| Malahide | €720K | 865 | +63% | 2.8 |
| Clongriffin | €377K | 142 | +43% | 3 |
| Baldoyle | €456K | 249 | +66% | 3.3 |
| Belmayne | €420K | 187 | +217% | 3.7 |
| Sutton | €717K | 301 | +28% | 4.2 |
| Donaghmede | €415K | 133 | – | 4.6 |
A routing-key price (fewer than 30 sales in the town) counts for its whole postal area. Rents are each town’s own RTB figure where published, else its district’s, city’s or county’s.
Questions about property prices in Portmarnock
What is the average house price in Portmarnock?
The median home in Portmarnock sold for €680,000 from 2023 to 2025, across 411 market sales on the Property Price Register (€735,000 in the last 12 months).
Are house prices going up in Portmarnock?
The median sale was €675,000 in 2024 and €725,000 in 2025: it went up 7%.
How many homes sell in Portmarnock each year?
149 sales in Portmarnock were filed on the Property Price Register in 2025, against an average of 129 a year over the last ten. Sales whose address names no town aren’t counted, so the true figure is somewhat higher.
How much does a new build cost in Portmarnock?
New homes sold for a median €710,000 over three years, against €643,000 for homes sold on. New builds were 38% of sales.
Is Portmarnock expensive for County Dublin?
Portmarnock is the 18th most expensive of 116 towns of 2,500 or more in County Dublin by median sale price.
Can I see individual sales or prices by street?
Yes: the Property Price Register publishes every residential sale with its address and price at propertypriceregister.ie. This page shows the town’s medians and counts.
Sales: Residential Property Price Register, Property Services Regulatory Authority. House prices by Eircode routing key, RTB rents and household incomes: CSO, CC BY 4.0. Routing-key areas: Autoaddress.
Sources: Property Price Register (PSRA), 2010–2026 · CSO HPA04 house prices by Eircode routing key, 2023–25. Under Creative Commons Attribution 4.0 (CC BY 4.0).
Contains Central Statistics Office (CSO) data, Census 2022, and Tailte Éireann boundaries (CSO Urban Areas, Small Areas, local electoral areas, constituencies), under Creative Commons Attribution 4.0 (CC BY 4.0).