Property data · Co. Dublin

Mount Merrion house prices

Median sale price, year trend, rents, yields and recent sales for Mount Merrion, drawn from official property data.

In brief

The median sale in Mount Merrion in the 12 months to 11 September 2026 was €1,250,000, up 5.3 per cent on the year before, from 53 recorded sales. The RTB last published a rent for Mount Merrion in Q4 2024, at €3,769 a month. The eight most recent sales on the register ran from €525,000 to €1,500,000.

House prices in Mount Merrion

Median price (12 months)€1,250,000
Year on year+5.3%
Sales recorded (12 months)53
New-build median€1,337,500
Second-hand median€1,250,000
Median by calendar yearMount Merrion: 2023–2026+62% over 3 yrs
€750,0002023€1,088,5002024€1,292,5002025€1,215,0002026 to date

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 28 sales recorded to July 2026. Over the 12 months to 11 September 2026 the median was €1,250,000.

YearMedianSales
2023€750,00090
2024€1,088,50052
2025€1,292,50054
2026€1,215,00028

For wider context, the CSO Residential Property Price Index puts the median for Dún Laoghaire-Rathdown at €685,000, up 3.7% year on year (July 2026). The CSO figure covers a wider area than the Mount Merrion sales above.

Rents in Mount Merrion

Average rent (RTB), monthly Q4 2024€3,769

The RTB no longer publishes a separate rent for Mount Merrion; the figure above is the last published quarter (Q4 2024). No rental yield is shown for Mount Merrionbecause pairing a rent from Q4 2024 with today's sale prices would give a yield that was never true on any date.

What sold in Mount Merrion

The latest of the 53 sales recorded near Mount Merrion on the Property Price Register in the last 12 months. The register updates weekly, roughly two months ahead of the official averages.

DateAddressPrice
7 Sept 202611 Trees Ave, Mount Merrion, Dublin€1,500,000
12 Aug 202628 Seamount, Stillorgan Rd, Mount Merrion€585,000
12 Aug 202676 Seamount, Stillorgan Rd, Mount Merrion€525,000
11 Aug 202634 Wilson Road, Mount Merrion, Co Dublin€850,000
31 Jul 20262 Cherrygarth, Mount Merrion, Dublin€1,280,000
30 Jul 202645 Trees Road, Mount Merrion, County Dublin€1,410,000
27 Jul 202612 The Close, Mount Merrion, Co Dublin€1,100,000
24 Jul 2026Sonas, 7 Redesdale Road, Mount Merrion€1,260,000

Planning near Mount Merrion

In the 12 months to 22 Sept 2026, 76 planning applications were granted in and around Mount Merrion. See Dublin planning applications by district for live applications, decisions and refusals.

DecidedDevelopmentUnits
4 Sept 2026The development will consist of the renovation and extension of existing 2-stor
31 Aug 2026a) Demolition of existing c.178sqm two-storey (plus non-habitable attic space),
24 Aug 2026The development will include the demolition of - the existing end of terrace par
20 Aug 2026The proposed amendment consists of the omission of the previously permitted det
17 Aug 2026Demolition of the existing garage; construction of a single storey extension to

Source: Irish Planning Applications, DHLGH ArcGIS FeatureServer, CC-BY 4.0. Grants within 7 km, keyed to the nearest tracked town.

More on Mount Merrion

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.