Planning near you · Dublin · Ref D26A/0392/WEB

The development will consist of retention permission for the demolition of the

10, Carysfort Downs, Blackrock, Co Dublin, A94X544

Decision code: DECLARE APPLICATION INVALID

Council decision recorded: May 29, 2026

Applicant: Aidan O'Mahony
Proposed use: See council description

Timeline ↓Map & nearby Documents & full proposal

The story so far

Application timeline

Recorded milestones for this application. A permission is not evidence that building work has started.

27 May 2026Application received
Source: NPAD
NPAD · legacy batch; original response hash unavailable · field: received_date
29 May 2026Council decisionDECLARE APPLICATION INVALID
Source: NPAD
NPAD · legacy batch; original response hash unavailable · field: decision_date

What changed

First retained observation; this does not establish that the application is new.

Legacy batch date (exact collection time unavailable): 3 June 2026. This describes our archive, not an application event date.

Why it matters locally

The proposal concerns 10, Carysfort Downs, Blackrock, Co Dublin, A94X544. Proposal excerpt: “The development will consist of retention permission for the demolition of the” Demolition is included in the proposal description.

Location & nearby applications

10, Carysfort Downs, Blackrock, Co Dublin, A94X544

No usable coordinates are available in the retained record, so a map pin is not shown.

Documents & sources

Dun Laoghaire Rathdown County Council · Reference D26A/0392/WEB

These documents are listed by the council. Open the council file above to view or download them.

Site Notice · 2026-05-27
Application Form - Part A · 2026-05-27
Newspaper Notice · 2026-05-27
Application - Cover Letter · 2026-05-27
Site Location Map · 2026-05-27
Site layout plan · 2026-05-27
Drawings - General · 2026-05-27
Decision Letter · 2026-05-29
Manager's Orders · 2026-05-29

Source records and verification details

Change record: NPAD · legacy batch; original response hash unavailable

Proposal: NPAD · legacy batch; original response hash unavailable

Latest source observation retained: 2026-06-03T00:00:00+00:00. Source dataset date: not supplied.

Full description from the council file

Reention permission for the demolition of the existing two storey pitched-roof detached house and the reconstruction of the house to match reusing the existing facing brick and roof tiles. This development will also consist of the demolition of two no single storey conservatories to the rear, the construction of a connecting porch to the front of the dwelling, the conversion of the attic to a study with a dormer windows to the front and rear, the construction of a single storey extension to the rear and the construction of an extension at first floor to the side of the house. (as per granted ref. D25B/0641/WEB)

Application details

Reference: D26A/0392/WEB
Applicant: Aidan O'Mahony
Site address: 10, Carysfort Downs, Blackrock, Co Dublin, A94X544
Application type: Permission for Retention
Latest reported outcome: Decision code: DECLARE APPLICATION INVALID
Date received: May 27, 2026
Decision due: July 21, 2026
Council decision date: May 29, 2026
Authority: Dun Laoghaire Rathdown County Council

Source: local authorities / National Planning Applications. Contains Irish Public Sector Data licensed under CC BY 4.0 where supplied by NPAD. Linked documents may have separate reuse terms.