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What are the largest development sites in Blanchardstown-Mulhuddart?

198 development sites in Blanchardstown-Mulhuddart are a hectare or larger, as of 25 Sep 2026. The largest is public land in Blanchardstown-Mulhuddart, at 38.9 ha (publicly owned land).

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

Sites of a hectare or more in Blanchardstown-Mulhuddart, largest first

  1. Public land in Blanchardstown-Mulhuddart

    Blanchardstown-Mulhuddart · Fingal · 38.9 ha · source

    Publicly owned land

    38.9 ha, Held by The Industrial Development Authority

  2. Public land in Blanchardstown-Mulhuddart

    Blanchardstown-Mulhuddart · Fingal · 31.27 ha · source

    Publicly owned land

    31.3 ha, Held by Fingal County Council

  3. Hollywoodrath, Hollystown, Dublin 15

    Blanchardstown-Mulhuddart · Fingal · 28.54 ha · source

    Stalled build

    455 homes; commenced 24 Jul 2015, no completion certificate, planned end Jul 2016

  4. Public land in Blanchardstown-Mulhuddart

    Blanchardstown-Mulhuddart · Fingal · 27.33 ha · source

    Publicly owned land

    27.3 ha, Held by Dublin City Council

  5. Public land in Blanchardstown-Mulhuddart

    Blanchardstown-Mulhuddart · Fingal · 26.9 ha · source

    Publicly owned land

    26.9 ha, Held by Dublin City Council

  6. Public land in Blanchardstown-Mulhuddart

    Blanchardstown-Mulhuddart · Fingal · 25.15 ha · source

    Publicly owned land

    25.2 ha, Held by Electricity Supply Board

  7. Public land in Blanchardstown-Mulhuddart

    Blanchardstown-Mulhuddart · Fingal · 24.33 ha · source

    Publicly owned land

    24.3 ha, Held by Fingal County Council

  8. Land in Blanchardstown-Mulhuddart

    Blanchardstown-Mulhuddart · Fingal · 22.75 ha · source

    On the RZLT map, no permission

    22.8 ha, RZLT-liable and no live permission for 10+ homes on it

  9. Public land in Blanchardstown-Mulhuddart

    Blanchardstown-Mulhuddart · Fingal · 20.43 ha · source

    Publicly owned land

    20.4 ha, Held by Institute of Technology Blanchardstown

  10. ICU Department, Level 3, Connolly Hospital

    Blanchardstown-Mulhuddart · Fingal · 20.32 ha · source

    Stalled build

    commenced 15 Nov 2020, no completion certificate, planned end Nov 2020

  11. Public land in Blanchardstown-Mulhuddart

    Blanchardstown-Mulhuddart · Fingal · 19.47 ha · source

    Publicly owned land

    19.5 ha, Held by Health Service Executive

  12. Public land in Blanchardstown-Mulhuddart

    Blanchardstown-Mulhuddart · Fingal · 19.07 ha · source

    Publicly owned land

    19.1 ha, Held by Dublin City Council

  13. Public land in Blanchardstown-Mulhuddart

    Blanchardstown-Mulhuddart · Fingal · 14.96 ha · source

    Publicly owned land

    15.0 ha, Held by Minister for Agriculture, Food and the Marine

  14. Public land in Blanchardstown-Mulhuddart

    Blanchardstown-Mulhuddart · Fingal · 14.33 ha · source

    Publicly owned land

    14.3 ha, Held by Fingal County Council

  15. Public land in Blanchardstown-Mulhuddart

    Blanchardstown-Mulhuddart · Fingal · 13.77 ha · source

    Publicly owned land

    13.8 ha, Held by The Industrial Development Authority

  16. Public land in Blanchardstown-Mulhuddart

    Blanchardstown-Mulhuddart · Fingal · 13.25 ha · source

    Publicly owned land

    13.2 ha, Held by The Industrial Development Authority

  17. Public land in Blanchardstown-Mulhuddart

    Blanchardstown-Mulhuddart · Fingal · 13.12 ha · source

    Publicly owned land

    13.1 ha, Held by The Industrial Development Authority

  18. Public land in Blanchardstown-Mulhuddart

    Blanchardstown-Mulhuddart · Fingal · 12.2 ha · source

    Publicly owned land

    12.2 ha, Held by Dublin City Council

  19. Public land in Blanchardstown-Mulhuddart

    Blanchardstown-Mulhuddart · Fingal · 11.87 ha · source

    Publicly owned land

    11.9 ha, Held by The Industrial Development Authority

  20. Public land in Blanchardstown-Mulhuddart

    Blanchardstown-Mulhuddart · Fingal · 11.2 ha · source

    Publicly owned land

    11.2 ha, Held by The Industrial Development Authority

  21. Public land in Blanchardstown-Mulhuddart

    Blanchardstown-Mulhuddart · Fingal · 11.18 ha · source

    Publicly owned land

    11.2 ha, Held by Dublin City Council

  22. Public land in Blanchardstown-Mulhuddart

    Blanchardstown-Mulhuddart · Fingal · 10.99 ha · source

    Publicly owned land

    11.0 ha, Held by Minister for Agriculture, Food and the Marine

  23. Public land in Blanchardstown-Mulhuddart

    Blanchardstown-Mulhuddart · Fingal · 10.96 ha · source

    Publicly owned land

    11.0 ha, Held by Fingal County Council

  24. Public land in Blanchardstown-Mulhuddart

    Blanchardstown-Mulhuddart · Fingal · 9.76 ha · source

    Publicly owned land

    9.8 ha, Held by Minister for Agriculture, Food and the Marine

  25. Land in Blanchardstown-Mulhuddart

    Blanchardstown-Mulhuddart · Fingal · 9.39 ha · source

    On the RZLT map, no permission

    9.4 ha, RZLT-liable and no live permission for 10+ homes on it

Showing 25 of 198. See them all →

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More about Blanchardstown-Mulhuddart

Is there development land for sale in Blanchardstown-Mulhuddart?
Buildable found 38 sites in Blanchardstown-Mulhuddart with a public sign they could come to market, as of 25 Sep 2026: 19 council sites proposed for sale, 1 site with planning permission running out or recently expired, 1 derelict site on the register and 26 stalled builds. These come from public registers, not agents' listings, so many are not advertised yet.
How many development sites are there in Blanchardstown-Mulhuddart?
Buildable tracks 689 development sites in Blanchardstown-Mulhuddart, 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 12 derelict sites, 23 council land sales and 26 stalled builds.
How much land in Blanchardstown-Mulhuddart is on the RZLT map?
299 ha of land in Blanchardstown-Mulhuddart is on the Residential Zoned Land Tax map, across 393 parcels (2027 draft RZLT map), as of 25 Sep 2026. 281 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.
How much zoned land in Blanchardstown-Mulhuddart has no planning permission?
281 ha in Blanchardstown-Mulhuddart is zoned for housing, on the RZLT map and has no live permission for 10 or more homes: 366 parcels, as of 25 Sep 2026. Land on the map is liable for the Residential Zoned Land Tax of 3% of market value a year.

Data as of 25 Sep 2026. Sources: Council Residential Zoned Land Tax maps; Land Development Agency, Register of Relevant Lands; Planning applications (Department of Housing national planning data).

Cite this: What are the largest development sites in Blanchardstown-Mulhuddart? Buildable, data as of 25 Sep 2026. https://buildable.ie/q/largest-development-sites-blanchardstown-mulhuddart

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