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

17 Mount Merrion Avenue, Blackrock, Co. Dublin, A94 Y7W8

Demolition of the existing shed to the end of the existing rear garden and formation of a new two storey, two bedroom dwelling accessed off the rear lane. Comprising 78sqm at ground floor and 51sqm at first floor. And for ancillary site works including the formation of a new rear boundary separating the existing…

Observations close 10 Dec 2026 26 days left
5 weeks from receipt (received 5 Nov 2026) · s.34 Planning and Development Act 2000 · art. 29 Regulations 2001 · fee €20

The application

Reference
D26A/0831/WEB · full record
Authority
Dún Laoghaire-Rathdown County Council
Type
Permission
Status
Registered Application
Site area
213 m²
Received
5 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/107374.
  2. Write your observation.Quote D26A/0831/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 10 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.

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 within 100 m

  • Radon risk area × 2
    About 1 in 10 homes in this area is likely to have high radon levels · About 1 in 20 homes in this area is likely to have high radon levels
  • Record of Protected Structures × 26
    The Benincasa School · House Terrace · House Terrace

Nearby precedents within 500 m, last 5 years

Decisions

ReferenceDecisionDecidedDistanceDescription
D26A/0683/WEBGrant permission4 Nov 2026165 mThe proposed development will amend extant planning permission DLRCC Reg. Ref. D
D26A/0616/WEBGrant permission7 Oct 2026394 mWidening of the existing front pedestrian entrance gateway up to a maximum widt
REF13126S5 dec not exempt11 Sept 202666 mInstallation of four stainless steel Sheffield-style bicycle stands outside the
D26B/0414/WEBGrant permission10 Sept 202629 m-Construction of new single storey extension to the side at first floor level.
REF11426S5 dec not exempt28 Aug 2026430 mNo works are proposed as part of this application. This application seeks to con
D26A/0443/WEBGrant permission & refuse permission4 Aug 2026431 mThe development subject to planning permission shall consist of; •1no. new frees
D26A/0439/WEBGrant permission31 Jul 2026283 mThe proposal relates to the extension of existing Retail Unit D2, located at gro
D26A/0344/WEBRefuse permission29 Jun 2026394 mWidening of the existing front pedestrian entrance gateway up to a maximum widt

Appeals

ACP caseTypeOutcomeDecidedDistance
501674Planning AppealGranted15 Oct 202653 m
501665Planning AppealWithdrawn5 Aug 2026296 m
501719Planning Appealpending16 Jul 2026465 m
501704Planning Appealpending14 Jul 2026360 m
324043Appeal - LRDGranted with conditions15 May 2026230 m
501341Planning AppealInvalid13 May 2026429 m
500051Planning AppealGranted with conditions10 Feb 2026435 m
324038Appeal - LRDInvalid21 Jan 2026230 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

  • 5 Nov 2026 New application · observations close 10 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.