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How many homes have planning permission but haven't started in Dundrum?

1,211 homes in Dundrum have planning permission but no start recorded, across 6 permissions, as of 25 Sep 2026. 125 of those homes are on permissions that expire within a year.

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

  • 1,211Homes not started
  • 6Permissions
  • 125Expiring within a year

The largest permitted schemes not started in Dundrum

  1. Land in Dundrum

    Dundrum · Dún Laoghaire-Rathdown · 9.69 ha · source

    Permitted, not started

    934 homes granted 22 Dec 2025, expires 22 Dec 2030

  2. Frankfort Castle

    Dundrum · Dún Laoghaire-Rathdown · 0.9 ha · source

    Permission running out

    115 homes, expires 20 Dec 2026

  3. Balally

    Dundrum · Dún Laoghaire-Rathdown · 0.98 ha · source

    Permitted, not started

    100 homes granted 11 Nov 2025, expires 11 Nov 2032

  4. Ballinteer Lodge

    Dundrum · Dún Laoghaire-Rathdown · 0.44 ha · source

    Permitted, not started

    31 homes granted 26 Aug 2024, expires 26 Aug 2029

  5. Dundrum Office Park

    Dundrum · Dún Laoghaire-Rathdown · 0.1 ha · source

    Permitted, not started

    21 homes granted 18 Jun 2024, expires 18 Jun 2029

  6. Barn Elms Estate

    Dundrum · Dún Laoghaire-Rathdown · 0.77 ha · source

    Permission running out

    10 homes, expires 16 Mar 2027

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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 Dundrum

Is there development land for sale in Dundrum?
Buildable found 13 sites in Dundrum with a public sign they could come to market, as of 25 Sep 2026: 2 sites with planning permission running out or recently expired, 1 derelict site on the register and 10 stalled builds. These come from public registers, not agents' listings, so many are not advertised yet.
How many development sites are there in Dundrum?
Buildable tracks 421 development sites in Dundrum, 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 2 permissions running out, 4 permitted schemes not started, 1 derelict site and 10 stalled builds.
What are the largest development sites in Dundrum?
192 development sites in Dundrum are a hectare or larger, as of 25 Sep 2026. The largest is land in Dundrum, at 24.7 ha (on the rzlt map, no permission).
How much land in Dundrum is on the RZLT map?
520 ha of land in Dundrum is on the Residential Zoned Land Tax map, across 335 parcels (2027 draft RZLT map), as of 25 Sep 2026. 472 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: Planning applications (Department of Housing national planning data).

Cite this: How many homes have planning permission but haven't started in Dundrum? Buildable, data as of 25 Sep 2026. https://buildable.ie/q/homes-permitted-not-built-dundrum

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