PlanningRegister.ie
Observation pack · Dún Laoghaire-Rathdown County Council

18 Orpen Close, Stillorgan Grove, Blackrock, Co. Dublin, A94P5W8

Conversion of existing attic space comprising of modification of existing roof s

Observations close 4 Nov 2026 window closed
5 weeks from receipt (received 30 Sept 2026) · s.34 Planning and Development Act 2000 · art. 29 Regulations 2001 · fee €20 · council decision due 27 Oct 2026

The five-week window has passed. Late observations are returned unread. If the council has decided, the next door is the appeal window — but under s.37 only the applicant and those who made a valid observation may appeal.

The application

Reference
REF15426 · full record
Authority
Dún Laoghaire-Rathdown County Council
Type
Section 5
Status
Decision Issued
Applicant
not published by the national dataset — see the council register
Units
—
Floor area
—
Site area
160 m²
Received
30 Sept 2026
We first saw it
3 Nov 2026, 23:01
Decision due
27 Oct 2026
Decision
S5 dec exempt

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=REF15426.
  2. Write your observation.Quote REF15426 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 4 Nov 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 amenitiescounty development plan 2022 20281 Apr 2022 → 1 Apr 2028
R2
Existing residential
Objective A: A To provide residential development and improve residential amenity while protecting the existing residential amenitiesd n laoghaire rathdown county development plan 2022 2028 variation no 121 Apr 2022 → 20 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: Dún Laoghaire-Rathdown County Council development plan zoning · fetched 11 Oct 2026, 23:12
SourceLicenceFetchedLink
Dún Laoghaire-Rathdown County Council development plan zoning—11 Oct 2026, 23:12open

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

Nearby precedents within 500 m, last 5 years

Decisions

ReferenceDecisionDecidedUnitsDistanceDescription
D26B/0523/WEBDeclare application invalid2 Oct 2026—236 mRemoval of existing garden shed measuring 6m x 3m x 2.4m in dimensions and repla
D26B/0441/WEBGrant permission21 Sept 2026—211 mDevelopment will consist of the installation of a new external door to the side
D26A/0408/WEBGrant permission21 Sept 2026—384 mRetention permission for the demolition of the existing two storey pitched-roof
D26B/0395/WEBGrant permission2 Sept 2026—417 mAlterations to front porch, and single storey front extension, new dormer window
D26B/0402/WEBGrant permission2 Sept 2026—365 m(A) Demolition of existing c.46sqm single-storey rear extension; (B) Constructio
D26B/0263/WEBGrant permission22 Jun 2026—374 m(A) a rear ground floor extension comprising improved and enlarged kitchen, dini
D26B/0261/WEBGrant permission18 Jun 2026—112 mFor the construction of a single storey extension to the side and rear of the ex
D26B/0267/WEBGrant permission18 Jun 2026—476 mThe proposed development will consist of a new consolidated single-storey front,

Appeals

ACP caseTypeOutcomeDecidedDistance
500847Planning AppealSplit6 Oct 2026285 m
500356Planning AppealGranted24 Feb 2026348 m
323726Planning AppealRefused2 Jan 2026427 m
322792Planning AppealRefused6 Oct 2025458 m
317742—Granted with conditions28 Jan 2025479 m
318484ReferralOther20 Jun 2024178 m
317152Planning AppealGranted with conditions12 Mar 2024482 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

  • 30 Sept 2026 New application · observations close 4 Nov 2026
  • 30 Sept 2026 Decision

Generated from the Planning Register store; nothing was fetched live for this page. Source: national planning dataset, fetched 3 Nov 2026, 23:01. Not legal advice — confirm the deadline with Dún Laoghaire-Rathdown County Council before relying on it.