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

20 Sweetman's Avenue, Blackrock, Co. Dublin, A94D9X6

The proposed development will consist of: • Construction of a first floor extens

Observations close 13 Nov 2026 7 days left
5 weeks from receipt (received 9 Oct 2026) · s.34 Planning and Development Act 2000 · art. 29 Regulations 2001 · fee €20 · council decision due 3 Dec 2026

The application

Reference
D26A/0757/WEB · full record
Authority
Dún Laoghaire-Rathdown County Council
Type
Permission
Status
Assessment Period
Applicant
not published by the national dataset — see the council register
Units
—
Floor area
—
Site area
122 m²
Received
9 Oct 2026
We first saw it
28 Oct 2026, 01:34
Decision due
3 Dec 2026
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=D26A/0757/WEB.
  2. Write your observation.Quote D26A/0757/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 13 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
M3
Neighbourhood centre
Objective DC: DC To protect, provide for and-or improve mixed-use district centre facilities.county 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 amenitiescounty development plan 2022 20281 Apr 2022 → 1 Apr 2028
M3
Neighbourhood centre
Objective DC: DC To protect, provide for and-or improve mixed-use district centre facilities.d n laoghaire rathdown county development plan 2022 2028 variation no 121 Apr 2022 → 20 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

  • Architectural Conservation Area × 1
    Blackrock Village
  • 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 × 1
    John the Baptist Church
  • OPW flood extent nearby floodinfo.ie
    Shown as a flag only — the OPW licence does not allow us to redistribute the extent.

Nearby precedents within 500 m, last 5 years

Decisions

ReferenceDecisionDecidedUnitsDistanceDescription
D26B/0463/WEBRequest additional information12 Oct 2026—338 mThe development will consist of the construction of a single storey extension t
D26A/0752/WEBDeclare application invalid8 Oct 2026—389 m- Retention of the amalgamation of Apartments Nos. 43 and 44 at fourth floor lev
D26A/0612/WEBGrant permission & grant retention7 Oct 2026—301 mThe development will consists of: revise permitted development approved under P
REF13126S5 dec not exempt11 Sept 2026—477 mInstallation of four stainless steel Sheffield-style bicycle stands outside the
D26A/0609/WEBDeclare application invalid13 Aug 2026—301 mThe development will consists of: revise permitted development approved under P
D26A/0598/WEBDeclare application invalid12 Aug 2026—301 mThe development will consists of: revise permitted development approved under P
D26A/0447/WEBGrant permission4 Aug 2026—347 mThe development will consist of: a) Demolition of outbuildings to the rear of t
D26A/0439/WEBGrant permission31 Jul 2026—317 mThe proposal relates to the extension of existing Retail Unit D2, located at gro

Appeals

ACP caseTypeOutcomeDecidedDistance
501694Planning AppealWithdrawn24 Sept 2026472 m
501537Planning AppealGranted with conditions15 Sept 2026424 m
324588Appeal - LRDpending21 Aug 2026230 m
501719Planning Appealpending16 Jul 2026257 m
501341Planning AppealInvalid13 May 2026252 m
500181Planning AppealGranted with conditions26 Feb 202693 m
500051Planning AppealGranted with conditions10 Feb 2026216 m
322181Planning AppealRefused30 Jul 2025482 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

  • 9 Oct 2026 New application · observations close 13 Nov 2026

Generated from the Planning Register store; nothing was fetched live for this page. Source: national planning dataset, fetched 28 Oct 2026, 01:34. Not legal advice — confirm the deadline with Dún Laoghaire-Rathdown County Council before relying on it.