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Which planning permissions in Dún Laoghaire-Rathdown are running out?

8 planning permissions in Dún Laoghaire-Rathdown, 1,150 homes in all, expire within a year with no start recorded, as of 26 Sep 2026. The next is Frankfort Castle (115 homes), on 20 Dec 2026. A permission lasts five years; an extension needs substantial works done before it expires.

From public registers, checked 26 Sep 2026. Updated nightly.

  • 8Permissions
  • 1,150Homes

Permissions in Dún Laoghaire-Rathdown, soonest to expire first

  1. Frankfort Castle

    Dundrum · Dún Laoghaire-Rathdown · 0.9 ha · source

    Permission running out

    115 homes, expires 20 Dec 2026

  2. Lands adjoining Clonkeen College

    Dún Laoghaire · Dún Laoghaire-Rathdown · 3.36 ha · source

    Permission running out

    299 homes, expires 23 Dec 2026

  3. Rocklawn

    Glencullen-Sandyford · Dún Laoghaire-Rathdown · 0.84 ha · source

    Permission running out

    112 homes, expires 10 Feb 2027

  4. Barn Elms Estate

    Dundrum · Dún Laoghaire-Rathdown · 0.77 ha · source

    Permission running out

    10 homes, expires 16 Mar 2027

  5. Brewery Road and Leopardstown Road

    Stillorgan · Dún Laoghaire-Rathdown · 2.71 ha · source

    Permission running out

    463 homes, expires 13 Apr 2027

  6. 'Fairholme', & 'St. Benedict's'Brighton Rd

    Glencullen-Sandyford · Dún Laoghaire-Rathdown · 1.29 ha · source

    Permission running out

    37 homes, expires 19 May 2027

  7. 'The Grange'

    Stillorgan · Dún Laoghaire-Rathdown · 1.85 ha · source

    Permission running out

    102 homes, expires 2 Jun 2027

  8. Fey Yerra

    Stillorgan · Dún Laoghaire-Rathdown · 0.5 ha · source

    Permission running out

    12 homes, expires 16 Sep 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 Dún Laoghaire-Rathdown

Is there development land for sale in Dún Laoghaire-Rathdown?
Buildable found 165 sites in Dún Laoghaire-Rathdown with a public sign they could come to market, as of 26 Sep 2026: 2 council sites proposed for sale, 12 sites with planning permission running out or recently expired, 16 derelict sites on the register and 135 stalled builds. These come from public registers, not agents' listings, so many are not advertised yet.
How many development sites are there in Dún Laoghaire-Rathdown?
Buildable tracks 2,502 development sites in Dún Laoghaire-Rathdown, as of 26 Sep 2026: every site with a public reason it could be built on or sold, from the councils' and national registers. They include 8 permissions running out, 42 permitted schemes not started, 20 derelict sites, 3 council land sales and 135 stalled builds.
What are the largest development sites in Dún Laoghaire-Rathdown?
1,035 development sites in Dún Laoghaire-Rathdown are a hectare or larger, as of 26 Sep 2026. The largest is public land in Glencullen-Sandyford, at 70.1 ha (publicly owned land).
Where are the derelict sites in Dún Laoghaire-Rathdown?
Dún Laoghaire-Rathdown has 16 sites on the council's derelict sites register, as of 26 Sep 2026. The owner of a registered site pays a levy of 7% of its market value a year.

Data as of 26 Sep 2026. Sources: Planning applications (Department of Housing national planning data).

Cite this: Which planning permissions in Dún Laoghaire-Rathdown are running out? Buildable, data as of 26 Sep 2026. https://buildable.ie/q/planning-permissions-expiring-dun-laoghaire-rathdown

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