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How many development sites are there in Dún Laoghaire-Rathdown?

Buildable tracks 2,501 development sites in Dún Laoghaire-Rathdown, 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 8 permissions running out, 41 permitted schemes not started, 20 derelict sites, 3 council land sales and 135 stalled builds.

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

  • 2,021On the RZLT map (3% land tax)
  • 1,899On the RZLT map, no permission
  • 273Publicly owned land
  • 135Stalled build
  • 41Permitted, not started
  • 20Derelict site
  • 8Permission running out
  • 4Permission expired
  • 3Council selling land

Sites in Dún Laoghaire-Rathdown, the soonest to move first

  1. Lands adjoining Clonkeen College

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

    Permission running out

    299 homes, expires 23 Dec 2026

  2. Brewery Road and Leopardstown Road

    Stillorgan · Dún Laoghaire-Rathdown · 2.71 ha · source

    Permission running out

    463 homes, expires 13 Apr 2027

  3. 'The Grange'

    Stillorgan · Dún Laoghaire-Rathdown · 1.85 ha · source

    Permission running out

    102 homes, expires 2 Jun 2027

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

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

    Permission running out

    37 homes, expires 19 May 2027

  5. Frankfort Castle

    Dundrum · Dún Laoghaire-Rathdown · 0.9 ha · source

    Permission running out

    115 homes, expires 20 Dec 2026

  6. Rocklawn

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

    Permission running out

    112 homes, expires 10 Feb 2027

  7. Barn Elms Estate

    Dundrum · Dún Laoghaire-Rathdown · 0.77 ha · source

    Permission running out

    10 homes, expires 16 Mar 2027

  8. Fey Yerra

    Stillorgan · Dún Laoghaire-Rathdown · 0.5 ha · source

    Permission running out

    12 homes, expires 16 Sep 2027

  9. Land in Dún Laoghaire

    Dún Laoghaire · Dún Laoghaire-Rathdown · source

    Council selling land

    Notice dated 11 May 2026

  10. Land in Dún Laoghaire

    Dún Laoghaire · Dún Laoghaire-Rathdown · source

    Council selling land

    Notice dated 11 May 2026

  11. Land in Balbriggan

    Balbriggan · Dún Laoghaire-Rathdown · source

    Council selling land

    Notice dated 14 Sep 2026

  12. Dalguise House . Monkstown Road

    Dún Laoghaire · Dún Laoghaire-Rathdown · 3.66 ha · source

    Permission expired

    298 homes, expired 25 Aug 2025

  13. Mount Saint Mary's and Saint Joseph's

    Stillorgan · Dún Laoghaire-Rathdown · 1.6 ha · source

    Permission expired

    231 homes, expired 25 Aug 2026

  14. 62 & 63 (Innisfree), Stepaside Lane

    Glencullen-Sandyford · Dún Laoghaire-Rathdown · 0.5 ha · source

    Permission expired

    29 homes, expired 10 Oct 2024

  15. Killart

    Stillorgan · Dún Laoghaire-Rathdown · 0.42 ha · source

    Permission expired

    19 homes, expired 26 May 2025

  16. DERELICT, HARVEY NURSING HOME, GLENAGEARY ROAD UPPER, CO.DUBLIN

    Dún Laoghaire · Dún Laoghaire-Rathdown · 3.11 ha · source

    Derelict site

    Register ref DS: 1705

  17. DERELICT, WAVERLY LODGE, 61 CARYSFORT AVENUE, BLACKROCK, CO.DUBLIN

    Blackrock · Dún Laoghaire-Rathdown · 2.37 ha · source

    Derelict site

    Register ref DS: 1696

  18. DERELICT, OLD DUNLEARY HOUSE, DUN LAOGHAIRE, CO.DUBLIN

    Dún Laoghaire · Dún Laoghaire-Rathdown · 0.74 ha · source

    Derelict site

    Register ref DS: 1714

  19. DERELICT, OLD DUNLEARY HOUSE, DUN LAOGHAIRE, CO.DUBLIN

    Dún Laoghaire · Dún Laoghaire-Rathdown · 0.31 ha · source

    Derelict site

    Register ref DS: 1714

  20. DERELICT, MARTELLO HOUSE, STRAND ROAD, KILLINEY

    Killiney-Shankill · Dún Laoghaire-Rathdown · source

    Derelict site

    Register ref DS: 1223

  21. DERELICT, YORK HOUSE TIVOLI LODGE, YORK ROAD, CO.DUBLIN

    Dún Laoghaire · Dún Laoghaire-Rathdown · source

    Derelict site

    Register ref DS 1450/51

  22. DERELICT, LARABEARG, TIVOLI ROAD NORTH, DUNLAOGHAIRE

    Dún Laoghaire · Dún Laoghaire-Rathdown · source

    Derelict site

    Register ref DS: 1528

  23. DERELICT, 3 ALBERT ROAD UPPER, GLENAGEARY, CO.DUBLIN

    Dún Laoghaire · Dún Laoghaire-Rathdown · source

    Derelict site

    Register ref DS 1544

  24. DERELICT, SAINT ANNE'S, UPPER DARGLE ROAD, BRAY

    Killiney-Shankill · Dún Laoghaire-Rathdown · source

    Derelict site

    Register ref DS: 1549

  25. DERELICT, TORCA ROAD, DALKEY, CO.DUBLIN

    Dún Laoghaire · Dún Laoghaire-Rathdown · source

    Derelict site

    Register ref DS: 1604

Showing 25 of 2,501. See them all →

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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 25 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.
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 25 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 25 Sep 2026. The owner of a registered site pays a levy of 7% of its market value a year.
Which derelict sites in Dún Laoghaire-Rathdown are also on the RZLT map?
3 derelict sites in Dún Laoghaire-Rathdown are also on the Residential Zoned Land Tax map, as of 25 Sep 2026. That land is zoned for housing, and its owners face the derelict sites levy (7% of market value a year) as well as the 3% land tax.

Data as of 25 Sep 2026. Sources: Planning applications (Department of Housing national planning data); Council derelict sites registers (Derelict Sites Act 1990); Council meeting agendas (s.183 disposal notices); Council Residential Zoned Land Tax maps; Land Development Agency, Register of Relevant Lands.

Cite this: How many development sites are there in Dún Laoghaire-Rathdown? Buildable, data as of 25 Sep 2026. https://buildable.ie/q/how-many-development-sites-dun-laoghaire-rathdown

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