Planning Register
Observation pack · Dún Laoghaire-Rathdown County Council

5a, Ruby Hall, Rochestown Avenue, Dun Laoghaire, Co. Dublin, A96ET86

Class 3A exemption.

Observations close 29 Sept 2026 17 days left
5 weeks from receipt (received 25 Aug 2026) · s.34 Planning and Development Act 2000 · art. 29 Regulations 2001 · fee 20

The application

Reference
C3A/0003/26 · full record
Authority
Dún Laoghaire-Rathdown County Council
Type
Exemption Class 3A
Status
Registered Application
Applicant
not published by the national dataset — see the council register
Units
Floor area
Site area
281 m²
Received
25 Aug 2026
We first saw it
11 Sept 2026, 15:18
Decision due
Decision
not yet decided

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=C3A/0003/26.
  2. Write your observation.Quote C3A/0003/26 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 29 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

  • NIAH-recorded building × 1
    Kensington
  • Radon risk area × 2
    About 1 in 20 homes in this area is likely to have high radon levels · About 1 in 5 homes in this area is likely to have high radon levels
  • Record of Protected Structures × 1
    Kensington Lodge (formerly Ruby Hall)

Nearby precedents within 500 m, last 5 years

Decisions

ReferenceDecisionDecidedUnitsDistanceDescription
ABP31141121/EGrant extension of duration of perm.23 Jul 2026237 mPermission for a strategic housing development for student accommodation shall
D26A/0323/WEBGrant permission22 Jun 2026461 mThe development consists of widening the existing vehicular entrance to the fro
D26B/0243/WEBGrant permission for retention15 Jun 2026402 mRetention Permission is sought for 2 no. velux roof lights to the north facing s
D26A/0294/WEBGrant permission for retention9 Jun 2026476 mRetention of 3 windows at first floor level of the building on the rear/ wester
D26A/0199/WEBGrant permission5 May 2026422 mThe demolition of existing structures and the construction of a two-storey dwel
LRD26A/0163/WEBGrant permission28 Apr 2026237 mPermission for a Large-Scale Residential Development comprising amendments to th
D26B/0122/WEBGrant permission27 Apr 2026489 mAttic conversion for storage incorporating a rear dormer window and three roofli
D26A/0136/WEBGrant permission21 Apr 2026431 mThe change of use of areas designated as multi-media room; residents lounge; com

Appeals

ACP caseTypeOutcomeDecidedDistance
501226Planning AppealGranted with conditions26 Aug 2026116 m
501224Planning AppealInvalid23 Apr 2026116 m
500330Planning AppealOther9 Apr 2026385 m
316279Planning AppealGranted with conditions19 Mar 2024229 m
311411Strategic Housing Development - ApplicationGranted with conditions26 Jan 2022237 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

  • 25 Aug 2026 New application · observations close 29 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.