Planning Register
Observation pack · Dún Laoghaire-Rathdown County Council

5 Ailesbury Grove, Dundrum, Dublin 16, D16EY70

The development will consist of (i) demolition of outbuilding to rear of existin

Observations close 18 Sept 2026 6 days left
5 weeks from receipt (received 14 Aug 2026) · s.34 Planning and Development Act 2000 · art. 29 Regulations 2001 · fee 20 · council decision due 8 Oct 2026

The application

Reference
D26B/0456/WEB · full record
Authority
Dún Laoghaire-Rathdown County Council
Type
Permission
Status
Invalid Details Sent to Applicant
Applicant
not published by the national dataset — see the council register
Units
Floor area
Site area
359 m²
Received
14 Aug 2026
We first saw it
11 Sept 2026, 15:18
Decision due
8 Oct 2026
Decision
Declare application invalid

The national dataset truncates descriptions (80 characters for DLR, 70 for Fingal) and omits the applicant. The full description 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/?ref=D26B/0456/WEB.
  2. Write your observation.Quote D26B/0456/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 18 Sept 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.

What the site is zoned

CodeObjectivePlanIn force
R2
Existing residential
Objective A: A To provide residential development and improve residential amenity while protecting the existing residential amenitiesDR-001:DP:county-development-plan-2022-20281 Apr 20221 Apr 2028

An application that accords with the zoning objective is hard to resist on principle; one that does not may be a material contravention, which the council can only grant by the s.34(6) procedure with its own notice and window.

Source: DLR DR-001:DP:county-development-plan-2022-2028 · fetched 11 Sept 2026, 15:17
SourceLicenceFetchedLink
DLR DR-001:DP:county-development-plan-2022-202811 Sept 2026, 15:17open

Designations on or near the site

  • Radon risk area × 1
    About 1 in 20 homes in this area is likely to have high radon levels
  • Record of Protected Structures × 2
    Meadowbrook House · Simpson's Hospital (former Wyckham House)
  • Recorded monument × 1
    R149415

Nearby precedents within 500 m, last 5 years

Decisions

ReferenceDecisionDecidedUnitsDistanceDescription
D26A/0492/WEBRequest additional information20 Aug 2026483 mThe development will consist of: the demolition of the existing non-original ext
D26A/0466/WEBGrant permission13 Aug 2026321 mInstallation of digital LED Screen (8m x 9m) on the northern elevation of Buildi
D26A/0465/WEBGrant permission13 Aug 2026261 mThe development will consist of installation of digital LED screen (4.71m X 3.2
D26B/0339/WEBGrant permission28 Jul 2026316 mRefurbishment and extension to existing semi-detached house to include (a) singl
D26A/0474/WEBWithdraw the application17 Jul 2026146 mThe installation of an air source heat pump on the balcony/terrace of 76 of the
REF9526S5 dec exempt10 Jul 2026317 mSee enclosed BMA Planning Report.
D26B/0004/WEBGrant permission10 Jul 2026373 mRefurbishment of existing house, single storey extension to the side along North
D26B/0297/WEBGrant permission8 Jul 2026242 mThe development will consist of the demolition of the existing side garage and

Appeals

ACP caseTypeOutcomeDecidedDistance
501835Planning Appealpending6 Aug 2026373 m
501615Planning Appealpending26 Jun 2026255 m
500471Planning AppealSplit23 Mar 2026341 m
500979Planning AppealInvalid13 Mar 2026255 m
323375Planning AppealRefused20 Nov 2025267 m
322528Planning AppealGranted with conditions10 Sept 202580 m
322714Planning AppealGranted with conditions25 Aug 2025365 m
322794Planning AppealInvalid17 Jun 202538 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

  • 14 Aug 2026 New application · observations close 18 Sept 2026
  • 17 Aug 2026 Decision · appeal window closes 14 Sept 2026

Generated from the Planning Register store; nothing was fetched live for this page. Source: national planning dataset, fetched 11 Sept 2026, 15:18. Not legal advice — confirm the deadline with Dún Laoghaire-Rathdown County Council before relying on it.