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How much public land is there in Blackrock?

21.0 ha in Blackrock is on the Land Development Agency's register of relevant public land, across 24 sites, as of 25 Sep 2026. The largest holder is University College Dublin, with 7.7 ha.

From public registers, checked 25 Sep 2026. Updated nightly.

  • 7.7 haUniversity College Dublin
  • 7.0 haDublin City Council
  • 4.3 haDún Laoghaire-Rathdown County Council
  • 1.0 haHealth Service Executive
  • 0.7 haElectricity Supply Board

The largest public sites in Blackrock

  1. Public land in Blackrock

    Blackrock · Dún Laoghaire-Rathdown · 2.11 ha · source

    Publicly owned land

    2.1 ha, Held by Dún Laoghaire-Rathdown County Council

  2. Public land in Blackrock

    Blackrock · Dún Laoghaire-Rathdown · 1.99 ha · source

    Publicly owned land

    2.0 ha, Held by Dublin City Council

  3. Public land in Blackrock

    Blackrock · Dún Laoghaire-Rathdown · 1.63 ha · source

    Publicly owned land

    1.6 ha, Held by University College Dublin

  4. Public land in Blackrock

    Blackrock · Dún Laoghaire-Rathdown · 1.6 ha · source

    Publicly owned land

    1.6 ha, Held by University College Dublin

  5. Public land in Blackrock

    Blackrock · Dún Laoghaire-Rathdown · 1.58 ha · source

    Publicly owned land

    1.6 ha, Held by University College Dublin

  6. Public land in Blackrock

    Blackrock · Dún Laoghaire-Rathdown · 1.38 ha · source

    Publicly owned land

    1.4 ha, Held by Dublin City Council

  7. Public land in Blackrock

    Blackrock · Dún Laoghaire-Rathdown · 1.37 ha · source

    Publicly owned land

    1.4 ha, Held by University College Dublin

  8. Public land in Blackrock

    Blackrock · Dún Laoghaire-Rathdown · 1.33 ha · source

    Publicly owned land

    1.3 ha, Held by Dún Laoghaire-Rathdown County Council

  9. Public land in Blackrock

    Blackrock · Dún Laoghaire-Rathdown · 1.3 ha · source

    Publicly owned land

    1.3 ha, Held by Dublin City Council

  10. Public land in Blackrock

    Blackrock · Dún Laoghaire-Rathdown · 1.02 ha · source

    Publicly owned land

    1.0 ha, Held by Health Service Executive

  11. Public land in Blackrock

    Blackrock · Dún Laoghaire-Rathdown · 0.84 ha · source

    Publicly owned land

    0.8 ha, Held by Dublin City Council

  12. Public land in Blackrock

    Blackrock · Dún Laoghaire-Rathdown · 0.82 ha · source

    Publicly owned land

    0.8 ha, Held by Dublin City Council

  13. Public land in Blackrock

    Blackrock · Dún Laoghaire-Rathdown · 0.82 ha · source

    Publicly owned land

    0.8 ha, Held by University College Dublin

  14. Public land in Blackrock

    Blackrock · Dún Laoghaire-Rathdown · 0.71 ha · source

    Publicly owned land

    0.7 ha, Held by Electricity Supply Board

  15. Public land in Blackrock

    Blackrock · Dún Laoghaire-Rathdown · 0.7 ha · source

    Publicly owned land

    0.7 ha, Held by University College Dublin

  16. Public land in Blackrock

    Blackrock · Dún Laoghaire-Rathdown · 0.5 ha · source

    Publicly owned land

    0.5 ha, Held by Dublin City Council

  17. Public land in Blackrock

    Blackrock · Dún Laoghaire-Rathdown · 0.25 ha · source

    Publicly owned land

    0.3 ha, Held by Dún Laoghaire-Rathdown County Council

  18. Public land in Blackrock

    Blackrock · Dún Laoghaire-Rathdown · 0.2 ha · source

    Publicly owned land

    0.2 ha, Held by Dún Laoghaire-Rathdown County Council

  19. Public land in Blackrock

    Blackrock · Dún Laoghaire-Rathdown · 0.2 ha · source

    Publicly owned land

    0.2 ha, Held by Dublin City Council

  20. Public land in Blackrock

    Blackrock · Dún Laoghaire-Rathdown · 0.17 ha · source

    Publicly owned land

    0.2 ha, Held by An Post

  21. Public land in Blackrock

    Blackrock · Dún Laoghaire-Rathdown · 0.16 ha · source

    Publicly owned land

    0.2 ha, Held by Dún Laoghaire-Rathdown County Council

  22. Public land in Blackrock

    Blackrock · Dún Laoghaire-Rathdown · 0.11 ha · source

    Publicly owned land

    0.1 ha, Held by The Office of Public Works

  23. Public land in Blackrock

    Blackrock · Dún Laoghaire-Rathdown · 0.11 ha · source

    Publicly owned land

    0.1 ha, Held by Dún Laoghaire-Rathdown County Council

  24. Public land in Blackrock

    Blackrock · Dún Laoghaire-Rathdown · 0.1 ha · source

    Publicly owned land

    0.1 ha, Held by Dún Laoghaire-Rathdown County Council

Go further

New development sites in Dún Laoghaire-Rathdown, every Monday

The week's new sites: permission running out, council selling land, derelict or stalled. Each with its source. Free while in beta.

More about Blackrock

Is there development land for sale in Blackrock?
Buildable found 17 sites in Blackrock with a public sign they could come to market, as of 25 Sep 2026: 2 derelict sites on the register and 15 stalled builds. These come from public registers, not agents' listings, so many are not advertised yet.
How many development sites are there in Blackrock?
Buildable tracks 298 development sites in Blackrock, as of 25 Sep 2026: every site with a public reason it could be built on or sold, from the councils' and national registers. They include 3 permitted schemes not started, 3 derelict sites and 15 stalled builds.
What are the largest development sites in Blackrock?
138 development sites in Blackrock are a hectare or larger, as of 25 Sep 2026. The largest is land in Blackrock, at 20.1 ha (on the rzlt map, no permission).
How much land in Blackrock is on the RZLT map?
496 ha of land in Blackrock is on the Residential Zoned Land Tax map, across 254 parcels (2027 draft RZLT map), as of 25 Sep 2026. 454 ha of it has no live permission for 10 or more homes. The tax is 3% of market value a year, collected by Revenue on maps the councils make.

Data as of 25 Sep 2026. Sources: Land Development Agency, Register of Relevant Lands.

Cite this: How much public land is there in Blackrock? Buildable, data as of 25 Sep 2026. https://buildable.ie/q/public-land-blackrock

Facts from public registers, not advice. Every question · How it works