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Observation pack · Dún Laoghaire-Rathdown County Council

Mercer Manor,Mercer Drive, Cherrywood, Dublin18, D18EK8X

Modifications to previously approved development (Ref; DZ22A/0770) including new signage, change of an existing window to a door, new ventilation grilles and a new storage shed at roof garden level. The development is located in a Strategic Development…

Observations close 9 Dec 2026 25 days left
5 weeks from receipt (received 4 Nov 2026) · s.34 Planning and Development Act 2000 · art. 29 Regulations 2001 · fee €20

The application

Reference
DZ26A/0825/WEB · full record
Authority
Dún Laoghaire-Rathdown County Council
Type
Permission (SDZ)
Status
Registered Application
Site area
686 m²
Received
4 Nov 2026

The council’s feed cuts this description short. The full text and the drawings are on the council register linked in step 1.

How to submit an observation

  1. Read the file on the council register.Drawings, planning statement and site notices are at https://planning.agileapplications.ie/dunlaoghaire/application-details/107358.
  2. Write your observation.Quote DZ26A/0825/WEB at the top, give your name and the address the authority should reply to, and confine it to planning matters — zoning objective, height, overlooking, traffic, drainage, heritage. What you say here is what you can later appeal on.
  3. Pay the €20 fee.Every submission needs it; without it the observation is invalid and is returned. Dún Laoghaire-Rathdown County Council takes it online with the submission or at the counter.
  4. Submit before 9 Dec 2026.Online through the register above, or in writing to the Planning Department, Dún Laoghaire-Rathdown County Council. The test is the date the authority receives it, not the date you post it.
  5. Keep the acknowledgement.The council's receipt is your proof of a valid observation — see below.

Statutory basis. Section 34(1) of the Planning and Development Act 2000 (as amended) requires a planning authority to consider any submission or observation made to it in accordance with the Regulations. Article 29 of the Planning and Development Regulations 2001 (as amended) sets the window: a submission or observation must be received by the authority within five weeks beginning on the date of receipt of the application, and must be accompanied by the prescribed fee of €20. A submission received after the window, or without the fee, is invalid and the authority must return it.

After you submit: keep the acknowledgement. Under the 2024 Act it secures your right to appeal — only the applicant and a person who made a valid observation may bring the council's decision to An Coimisiún Pleanála, within four weeks of the decision. Making a valid observation is also what buys a right of appeal: under s.37(1) of the 2000 Act, only the applicant and a person who made a valid submission or observation to the planning authority may appeal the decision to An Coimisiún Pleanála (within four weeks of the decision). Missing the five-week window closes both doors.

Designations on or near the site within 100 m

  • Radon risk area × 1
    About 1 in 5 homes in this area is likely to have high radon levels

Nearby precedents within 500 m, last 5 years

Decisions

ReferenceDecisionDecidedDistanceDescription
DZ26A/0817/WEBDeclare application invalid2 Nov 20260 mModifications to previously approved development (Ref; DZ22A/0770) including ne
DZ26A/0177/WEBGrant permission30 Oct 2026280 mPermission on this Site In the Townlands of Laughanstown and Brennanstown, Dubli
DZ26A/0750/WEBDeclare application invalid7 Oct 20267 mThe development will consist of amalgamation of 2no. permitted retail units (Un
DZ26A/0252/WEBGrant permission7 Oct 2026458 mThe proposed development will principally consist of the construction of a resid
DZ26A/0579/WEBRequest additional information22 Sept 202621 mThe proposed development will consist of 40no. residential units comprising 10
DZ26B/0366/WEBGrant permission14 Aug 2026487 mPlanning permission sought for a single storey glass conservatory (16.0 SQ.M.) t
DZ26A/0151/WEBGrant permission24 Jun 2026199 mLSREF V Eden TC6 Limited Intend to Apply for Permission on a site In the Townl
DZ26B/0360/WEBDeclare application invalid24 Jun 2026487 mPlanning permission sought for a single storey glass conservatory (16.0 sq.m.)

Appeals

ACP caseTypeOutcomeDecidedDistance
324502pending31 Jul 202641 m
321573Amend Planning Schema/Add Planning SchemaOther1 Jul 20260 m
321401Amend Planning Schema/Add Planning SchemaGranted12 Mar 20260 m
322666Alter Planning SchemeGranted25 Nov 20250 m
323337Final Map AppealOther14 Nov 202541 m
321992Marine Development - Applicationpending28 Feb 2025227 m
317574Alter Planning SchemeGranted22 Nov 20240 m
320384Final Map AppealOther22 Oct 202441 m

If neighbours here have appealed before and lost, the inspector's report on that case is the single most useful thing to read.

What has happened on this file

  • 4 Nov 2026 New application · observations close 9 Dec 2026

Generated from the Planning Register store; nothing was fetched live for this page. Source: national planning dataset, fetched 6 Nov 2026, 23:24. Not legal advice — confirm the deadline with Dún Laoghaire-Rathdown County Council before relying on it.