Dun Laoghaire, Co. Dublin
1 Northumberland Avenue, Dun Laoghaire
Sold once since 2010, for
€4,821,973
on 31 May 2023, a new build. That figure excludes the tax the buyer paid on top.
On Northumberland Avenue, where every recorded sale is set out.
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Against the market
How the price sat
It fetched 750% above the median for Dun Laoghaire that year. This price was recorded without the tax the buyer paid, so it is not the price paid.
- This sale, 2023€4,821,973
- Northumberland Avenue, all years€727,500
- Dun Laoghaire median, 2023€567,500
- The State, 2023€290,000
The same street
Other houses on Northumberland Avenue
- 8 Northumberland Avenue, Dun Laoghaire€480,000 in 2011
- 16 Northumberland Avenue, Dun Laoghaire, Co Dublin€1,475,000 in 2022
- 39 Northumberland Avenue, Dun Laoghaire€924,000 in 2018
- 23 Northumberland Avenue, Dun Laoghaire€620,000 in 2014
- 43 Northumberland Avenue, Dun Laoghaire, Co Dublin€835,000 in 2016
- 35 Northumberland Avenue, Dun Laoghaire, Co Dublin€925,000 in 2018
- 3 Northumberland Close, Northumberland Avenue, Dun Laoghaire€757,709 in 2022
- 43 Northumberland Avenue, Dun Laoghaire, Co Dublin€1,825,000 in 2024
Where this comes from
Every figure here is a sale filed for stamp duty and published by the Property Services Regulatory Authority, used under the Creative Commons Attribution 4.0 licence. The register carries no buyer or seller names and neither does this page. Transactions marked as not full market price remain in the history and carry that label. They are excluded from the market comparisons.
Guides
Worth reading beside this
Why the price on the register is not what the buyer paid
About 10.4% of sales in our town-level comparison sample are filed without the VAT the buyer paid on top. A €400,000 new build appears as €352,423. How to spot one and what to add back.
Stamp Duty on a house, and when the 6% band bites
1% up to €1 million, 2% to €1.5 million and 6% above it, charged in slices rather than all at one rate. What that comes to on a real price.
Working out a Local Property Tax band from a sale price
LPT is charged on what the owner declared the property was worth on 1 November 2025. A sale price is a hint at that, and a weaker hint the older the sale.