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Development land in Dún Laoghaire

484 sites in Dún Laoghaire (Dún Laoghaire-Rathdown) have a public reason they could sell. Zoned residential with no live permission: 577.7 ha.

Derelict and unbuilt land in Dún Laoghaire

As of 25 Sep 2026, Dún Laoghaire (Dún Laoghaire-Rathdown) has 9 derelict sites, 567 homes permitted but not started and 578 ha zoned for housing with no permission. 22 building sites started work and did not finish and the council has put 2 land disposals to councillors.

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The sites

Permission running outAll in Dún Laoghaire-Rathdown →

  1. Lands adjoining Clonkeen College

    Deansgrange · Dún Laoghaire · 3.36 ha · zoned S5

    Permission for 299 homes runs out 23 Dec 2026

Permitted, not startedAll in Dún Laoghaire-Rathdown →

  1. Sallynoggin Road

    Thomastown · Dún Laoghaire · 0.74 ha · zoned M3

    99 homes permitted, not started

  2. Mixed-use land at Dunleary

    Dún Laoghaire · 0.74 ha · zoned M3

    88 homes permitted, not started

    Derelict site

  3. Aclare Nursing Home

    Dunleary · Dún Laoghaire · 0.15 ha · zoned R2

    49 homes permitted, not started

  4. Former Dalkey Lodge Nursing home

    Dún Laoghaire · 0.42 ha · zoned R2

    22 homes permitted, not started

  5. No 3 Monaloe Crescent and garden of no 2 Monaloe Crescent

    Deansgrange · Dún Laoghaire · 0.33 ha · zoned R2

    10 homes permitted, not started

Permission expiredAll in Dún Laoghaire-Rathdown →

  1. Dalguise House . Monkstown Road

    Dún Laoghaire · 3.66 ha · zoned R2

    Permission for 298 homes expired unbuilt

Council selling landAll in Dún Laoghaire-Rathdown →

  1. Land at Dalkey

    Dún Laoghaire

    Council selling or leasing the land

  2. Land at Dalkey

    Dún Laoghaire

    Council selling or leasing the land

Derelict siteAll in Dún Laoghaire-Rathdown →

  1. Residential land at Monkstown

    Dún Laoghaire · 3.11 ha · zoned R2

    On the derelict sites register

    On the RZLT map, no permissionOn the RZLT map (3% land tax)

  2. Mixed-use land at Dunleary

    Dún Laoghaire · 0.31 ha · zoned M3

    On the derelict sites register

    On the RZLT map (3% land tax)Underused site

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

    Bullock · Dún Laoghaire · zoned R2

    On the derelict sites register

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

    Dunleary · Dún Laoghaire · zoned R2

    On the derelict sites register

  5. DERELICT, LARABEARG, TIVOLI ROAD NORTH, DUNLAOGHAIRE

    Dunleary · Dún Laoghaire · zoned R2

    On the derelict sites register

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

    Dalkey Commons · Dún Laoghaire · zoned R2

    On the derelict sites register

  7. DERELICT, 31 O'DONNELL GARDENS, GLENAGEARY, CO.DUBLIN

    Glasthule · Dún Laoghaire · zoned R2

    On the derelict sites register

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

    Monkstown · Dún Laoghaire · zoned R2

    On the derelict sites register

  9. DERELICT, 17 PATRICK STREET, DUN LAOGHAIRE, CO.DUBLIN

    Dunleary · Dún Laoghaire · zoned M2

    On the derelict sites register

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

    Dunleary · Dún Laoghaire · zoned M3

    On the derelict sites register

  11. DERELICT, 61 GEORGE'S STREET UPPER, DUN LAOGHAIRE, CO.DUBLIN

    Dunleary · Dún Laoghaire · zoned M2

    On the derelict sites register

Stalled buildAll in Dún Laoghaire-Rathdown →

  1. Block B8 - Honeypark

    Dún Laoghaire · 0.04 ha · zoned R2

    Stalled build

  2. 27A Johnstown Road, Cabinteely, Dún Laoghaire-Rathdown

    Dún Laoghaire · 0.31 ha · zoned R2

    Stalled build

  3. 27A Johnstown Road, Cabinteely

    Dún Laoghaire · 0.31 ha · zoned R2

    Stalled build

  4. 27A Johnstown Road, Cabinteely

    Dún Laoghaire · 0.31 ha · zoned R2

    Stalled build

  5. 21 Johnstown Road, Cabinteely

    Dún Laoghaire · 0.29 ha · zoned R2

    Stalled build

  6. Prague, Johnstown Road, Dun Laoghaire

    Dún Laoghaire · 0.29 ha · zoned R2

    Stalled build

  7. Monkstown Grove Residential Development

    Lansville · Dún Laoghaire · 0.22 ha · zoned R2

    Stalled build

  8. 39 Castle Park Road, Dalkey

    Bullock · Dún Laoghaire · 0.46 ha · zoned R2

    Stalled build

  9. BENTLEY VILLAS

    Dunleary · Dún Laoghaire · 0.08 ha · zoned M2

    Stalled build

  10. Caldragh

    Dalkey · Dún Laoghaire · 0.25 ha · zoned R2

    Stalled build

  11. Abbey View House, Abbey View, Monkstown, Blackrock

    Kill of the Grange · Dún Laoghaire · 0.09 ha · zoned R2

    Stalled build

  12. Sussex Street Apartments - Demolition

    Dunleary · Dún Laoghaire · 0.05 ha · zoned M2

    Stalled build

On the RZLT map, no permissionAll in Dún Laoghaire-Rathdown →

  1. Residential land at Montpelier

    Dún Laoghaire · 28.10 ha · zoned R2

    On the RZLT map, no permission

    On the RZLT map (3% land tax)

  2. Residential land at Dalkey

    Dún Laoghaire · 14.15 ha · zoned R2

    On the RZLT map, no permission

    On the RZLT map (3% land tax)

  3. Residential land at Mountashton

    Dún Laoghaire · 9.78 ha · zoned R2

    On the RZLT map, no permission

    On the RZLT map (3% land tax)

  4. Residential land at Dalkey Commons

    Dún Laoghaire · 9.37 ha · zoned R2

    On the RZLT map, no permission

    On the RZLT map (3% land tax)

  5. Residential land at Cabinteely

    Dún Laoghaire · 8.80 ha · zoned R2

    On the RZLT map, no permission

    On the RZLT map (3% land tax)

  6. Residential land at Dalkey

    Dún Laoghaire · 8.09 ha · zoned R2

    On the RZLT map, no permission

    On the RZLT map (3% land tax)

  7. Residential land at Glenagarey

    Dún Laoghaire · 7.83 ha · zoned R2

    On the RZLT map, no permission

    On the RZLT map (3% land tax)

  8. Residential land at Bullock

    Dún Laoghaire · 7.82 ha · zoned R2

    On the RZLT map, no permission

    On the RZLT map (3% land tax)

  9. Residential land at Monkstown

    Dún Laoghaire · 7.57 ha · zoned R2

    On the RZLT map, no permission

    On the RZLT map (3% land tax)

  10. Residential land at Woodpark

    Dún Laoghaire · 7.48 ha · zoned R2

    On the RZLT map, no permission

    On the RZLT map (3% land tax)

  11. Residential land at Dalkey

    Dún Laoghaire · 7.45 ha · zoned R2

    On the RZLT map, no permission

    On the RZLT map (3% land tax)

  12. Residential land at Bullock

    Dún Laoghaire · 6.90 ha · zoned R2

    On the RZLT map, no permission

    On the RZLT map (3% land tax)

Publicly owned landAll in Dún Laoghaire-Rathdown →

  1. Public land at Scalpwilliam or Mount Mapas

    Dún Laoghaire · 45.67 ha · zoned G1

    Publicly owned land

  2. Public land at Woodpark

    Dún Laoghaire · 8.02 ha · zoned S1

    Publicly owned land

  3. Public land at Deansgrange

    Dún Laoghaire · 4.29 ha · zoned G1

    Publicly owned land

  4. Public land at Kill of the Grange

    Dún Laoghaire · 2.42 ha · zoned S1

    Publicly owned land

  5. Public land at Dún Laoghaire

    Dún Laoghaire · 2.01 ha · zoned O2

    Publicly owned land

  6. Public land at Deansgrange

    Dún Laoghaire · 1.56 ha · zoned G1

    Publicly owned land

  7. Public land at Deansgrange

    Dún Laoghaire · 1.47 ha · zoned G1

    Publicly owned land

  8. Public land at Thomastown

    Dún Laoghaire · 1.34 ha · zoned S5

    Publicly owned land

  9. Public land at Dunleary

    Dún Laoghaire · 1.21 ha · zoned G1

    Publicly owned land

  10. Public land at Dunleary

    Dún Laoghaire · 1.19 ha · zoned O2

    Publicly owned land

  11. Public land at Monkstown

    Dún Laoghaire · 1.14 ha · zoned S5

    Publicly owned land

  12. Public land at Dalkey Commons

    Dún Laoghaire · 1.09 ha · zoned G1

    Publicly owned land

On the RZLT map (3% land tax)All in Dún Laoghaire-Rathdown →

  1. Residential land at Bullock

    Dún Laoghaire · 7.97 ha · zoned R2

    On the RZLT map (3% land tax)

  2. Residential land at Glenagarey

    Dún Laoghaire · 5.23 ha · zoned R2

    On the RZLT map (3% land tax)

  3. Residential land at Dalkey

    Dún Laoghaire · 4.81 ha · zoned R2

    On the RZLT map (3% land tax)

  4. Residential land at Deansgrange

    Dún Laoghaire · 2.52 ha · zoned R2

    On the RZLT map (3% land tax)

  5. Residential land at Dunleary

    Dún Laoghaire · 2.33 ha · zoned R2

    On the RZLT map (3% land tax)

  6. Residential land at Dunleary

    Dún Laoghaire · 1.29 ha · zoned R2

    On the RZLT map (3% land tax)

    Underused site

  7. Residential land at Dunleary

    Dún Laoghaire · 0.69 ha · zoned R2

    On the RZLT map (3% land tax)

  8. Residential land at Monkstown

    Dún Laoghaire · 0.67 ha · zoned R2

    On the RZLT map (3% land tax)

    Underused site

  9. Mixed-use land at Thomastown

    Dún Laoghaire · 0.49 ha · zoned M3

    On the RZLT map (3% land tax)

    Underused site

  10. Residential land at Dunleary

    Dún Laoghaire · 0.48 ha · zoned R2

    On the RZLT map (3% land tax)

  11. Residential land at Dalkey

    Dún Laoghaire · 0.39 ha · zoned R2

    On the RZLT map (3% land tax)

    Underused site

  12. Residential land at Dalkey Commons

    Dún Laoghaire · 0.37 ha · zoned R2

    On the RZLT map (3% land tax)

    Underused site

Showing 68 of 484: the biggest of each kind. See every site on the map →

All 484 sites in Dún Laoghaire →

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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.

Dún Laoghaire in numbers

  • 567Homes permitted, not started
  • 299Homes whose permission runs out within a year
  • 647.9Hectares zoned residential
  • 192Commencement notices, last 12 months

Planning applications in Dún Laoghaire (every application and decision, on Planning Register)

Other areas in Dún Laoghaire-Rathdown

Figures as of 24 Sept 2026.

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