Williamstown
Dún Laoghaire–Rathdown / 65 properties
A townland between Blackrock and Dún Laoghaire, Williamstown sits along the residential streets that connect the two larger centres. The area benefits from proximity to both Blackrock DART station and the Monkstown Road corridor, with housing from various periods giving the streets a mixed character. The coastal amenities of Seapoint and Salthill are within walking distance, and the area maintains the settled, residential quality typical of DLR's inner suburbs.
Investment Growth Rate
Repeat-sale properties in Williamstown have changed by a median + 5.5% per year over 14 years (2011 to 2025) , based on 8 properties with at least two recorded sales. How we calculate this .
Price Trend
Based on 72 recorded sales across all years
Property Map
Can you afford to buy in Williamstown?
The median property here is €720,000. Check if it's within reach with our affordability calculator.
Major Streets and Housing Developments
Other streets (16)
Mount Merrion Avenue
€1.4M · 8 propertiesRock Road
€510K · 8 propertiesWestfield
€685K · 7 propertiesBooterstown Avenue
€750K · 6 propertiesPinehaven
€1.3M · 4 propertiesCross Avenue
€1.3M · 2 propertiesSaint James
€1.5M · 2 propertiesWillowmount
€1.0M · 2 propertiesBellevue
€2.4M · 1 propertyBooterstown Hall
€400K · 1 propertyDun Ri
€2.7M · 1 propertyGoleen
€2.5M · 1 propertySaint Margarets
€1.5M · 1 propertySion Hill
€476K · 1 propertyThe Presbytery
€1.3M · 1 propertyWillow Terrace
€1.6M · 1 propertyCompare with Nearby Areas
See how Williamstown stacks up against other areas in Dún Laoghaire–Rathdown.
Rental Market in Williamstown
€2,202/month
20
| 🏠 Houses | |||
|---|---|---|---|
| Beds | Median | Range | n |
| 2-bed | €2,052 | €1,750–€3,335 | 5 |
| 3-bed | €3,000 | €2,205–€3,750 | 7 |
| 🏢 Apartments | |||
|---|---|---|---|
| Beds | Median | Range | n |
| 1-bed | €1,854 | €1,590–€2,100 | 4 |
| 2-bed | €1,936 | €1,772–€2,100 | 2 |
| 3-bed | €3,000 | €3,000–€3,000 | 1 |
| 4-bed | €2,441 | €2,441–€2,441 | 1 |
Based on rents over the last 24 months. Source: RTB Rent Register · 2026-03-16
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Frequently Asked Questions
What is the median house price in Williamstown?
The median property price in Williamstown, Dún Laoghaire–Rathdown is €720,000, based on 65 recorded sales.
How many properties have sold in Williamstown?
65 properties have been recorded as sold in Williamstown, Dún Laoghaire–Rathdown in the last 16 years.
What is the most expensive street in Williamstown?
The most expensive street in Williamstown by median price is Mount Merrion Avenue at €1,438,175.
How does Williamstown compare to Dún Laoghaire–Rathdown?
The median price in Williamstown (€720,000) is 35% above the Dún Laoghaire–Rathdown median of €535,000.
What is the investment growth rate in Williamstown?
Based on 8 repeat-sale properties in Williamstown, values have changed by a median +5.5% per year over 14 years (2011 to 2025).
How have prices changed in Williamstown over time?
The median sale price in Williamstown has risen 231% from €405K in 2010 to €1.3M in 2026, based on 72 recorded sales. In the last 5 years, it has risen 116%.