House prices in Mount Merrion
Dublin · 693 sales since 2010 · register updated 28 Aug 2026
Median, last 12 months
€1,225,000
44 sales
Full year 2025
€1,255,000
+13% on 2024
On the map
51%
356 of 693 sales placed · 17% new builds
Dots are coloured by price. Click one for the record. Paler dots sit at the estate centre because the register has no Eircode for that sale.
Median price by year
| Year | Sales | Median | Change |
|---|---|---|---|
| 2010 | 26 | €617,000 | |
| 2011 | 32 | €561,750 | -9% |
| 2012 | 47 | €535,000 | -5% |
| 2013 | 35 | €555,000 | +4% |
| 2014 | 23 | €680,000 | +23% |
| 2015 | 34 | €814,000 | +20% |
| 2016 | 33 | €800,000 | -2% |
| 2017 | 41 | €860,000 | +8% |
| 2018 | 39 | €825,000 | -4% |
| 2019 | 35 | €710,000 | -14% |
| 2020 | 29 | €820,000 | +15% |
| 2021 | 40 | €887,500 | +8% |
| 2022 | 47 | €965,000 | +9% |
| 2023 | 86 | €748,184 | -22% |
| 2024 | 43 | €1,115,000 | +49% |
| 2025 | 40 | €1,255,000 | +13% |
| 2026 | 22 | €1,215,000 | -3% |
Streets and estates
Places in Mount Merrion with 5 or more sales.
| Estate / street | Sales | Median |
|---|---|---|
| Thornhill Oaks | 45 | €895,000 |
| Oatlands Manor | 27 | €746,368 |
| Seamount | 25 | €365,000 |
| The Rise | 25 | €965,000 |
| Greygates | 21 | €800,000 |
| South Ave | 17 | €965,000 |
| Cedarmount Rd | 16 | €697,500 |
| Trees Rd | 16 | €940,000 |
| Trees Road | 15 | €730,000 |
| Clonmore Rd | 14 | €863,500 |
What it costs to buy in Mount Merrion
Stamp duty, deposit, monthly repayment and the income a lender will look for, starting from the local median.
Monthly repayment
€5,012
on a €1,102,500 mortgage
Stamp duty
€14,500
1% up to €1m, 2% to €1.5m, 6% above
Cash needed
€140,000
deposit €122,500 + duty + about €3,000 legal
Income the bank wants
€275,625
4× loan-to-income cap
Defaults to the Mount Merrion median. Stamp duty rates per revenue.ie for deeds signed from 2 October 2024. Loan caps per Central Bank mortgage measures (minimum deposit €122,500 here); lenders can exceed them for a limited share of loans. First-time buyers of new homes may claim Help to Buy, up to €30,000. A guide, not advice.
Know when the next home sells in Mount Merrion
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Every sale in Mount Merrion
| Date | Address | Price |
|---|
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Questions
What is the average house price in Mount Merrion?
The median price paid in Mount Merrion over the last 12 months was €1,225,000, based on 44 sales filed in the Property Price Register. Across the full year 2025 the median was €1,255,000, +13% on 2024.
How many houses have sold in Mount Merrion?
693 sales since January 2010. About 17% were new builds. Sales marked "nfmp" were not at full market price (for example a transfer between family members) and are left out of the medians.
Why are some pins in the middle of the estate?
Eircodes were only added to the register around 2021. For earlier sales we place the pin at the centre of the estate or street, calculated from newer sales with an Eircode on the same road. 356 of 693 sales in Mount Merrion are on the map; the rest are in the table.
Is this the asking price?
No. This is the price actually paid, as declared to Revenue for stamp duty. It excludes VAT on new builds in the register, so we add 13.5% back for new homes to make them comparable.