← Back to search

49 Thornhill Oaks, Cherrygarth, Mount Merrion, Blackrock, Dublin, A94Y8X5

GRANT PERMISSION

Planning application D26B/0071/WEB

Dublin - Dun Laoghaire Rathdown County Council

Proposed Development

The development consists of the following: Conversion of existing attic space to

Application Timeline

  1. Application received

    6 Feb 2026

  2. Decision: GRANT PERMISSION

    31 Mar 2026

  3. Decision due

    2 Apr 2026

  4. Grant issued

    6 May 2026

Application Details

Location
49 Thornhill Oaks, Cherrygarth, Mount Merrion, Blackrock, Dublin, A94Y8X5
Applicant
N/A
Application Type
Permission
Planning Authority
Dun Laoghaire Rathdown County Council
Site Area
270 ha

Timeline

Registration Date
6 February 2026
Status
Final Grant
Decision
GRANT PERMISSION
Decision Date
31 March 2026
Grant Date
6 May 2026

Location

Loading map...

Planning Applications Nearby

What the council has granted and refused around this site is the best guide to how a similar application will fare.

28m
D23A/0185REFUSE PERMISSION22 Mar 2023

Permission is sought for the subdivision of the existing property of (0.054 hect

43, Cherrygarth, Mount Merrion, Blackrock, Dublin, A94PF10

28m
D22A/1016DECLARE INVALID (SITE NOTICE)21 Dec 2022

Permission is sought for the subdivision of the existing property of (0.054 hect

43, Cherrygarth, Mount Merrion, Blackrock, Dublin, A94PF10

41m
D22A/0998GRANT PERMISSION15 Dec 2022

Permission for a single storey extension to the front and side including the con

Cheriton, 44 Cherrygarth, Mount Merrion, Blackrock, Co Dublin, A94A6P6

45m
D25A/0862/WEBGRANT PERMISSION12 Nov 2025

Oak View Property Developments Limited, intend to apply for Retention Permission

Thornhill Oaks, Cherrygarth, Mount Merrion, Blackrock, Co. Dublin, and Thornhill House (a Protected Structure) A94W7C5

45m
D24B/0425/WEBGRANT PERMISSION FOR RETENTION8 Oct 2024

Oak View Property Developments Limited, intend to apply for Retention Permissio

Thornhill Oaks, Cherrygarth, Mount Merrion, Blackrock, Dublin, A94W7C5

46m
D17A/0240REFUSE PERMISSION16 Mar 2017

Permission for development. The proposed development comprisis of 47 no.

Thornhill House, Cherrygarth, Mount Merrion, Blackrock, Co. Dublin

46m
D19A/0748GRANT PERMISSION8 Oct 2019

Permission for development on a site of c. 1.39 ha.

Thornhill House, Cherry Garth, Mount Merrion, Blackrock, Co. Dublin

46m
D21A/0161REFUSE PERMISSION26 Feb 2021

Permission for development. The proposed development will consist of

Site of c. 1.39 ha, Thornhill House, Cherry Garth, Mount Merrion, Blackrock, Co.Dublin A Protected Structure (RPS No. 936)

46m
D20A/0274DECLARE INVALID (SITE NOTICE)30 Mar 2020

Permission for development. The proposed development will consist of

Site of c. 1.39 ha, Thornhill House, CherryGarth, Mount Merrion, Blackrock, Co. Dublin

46m
D20A/0432REFUSE PERMISSION22 Jun 2020

Permission for development. The proposed development will consist of

Site of c. 1.39 ha, Thornhill House, CherryGarth, Mount Merrion, Blackrock, Co. Dublin

Planning a project of your own?

Find out in two minutes whether you need planning permission. It's free, and based on the exempted development regulations.

Do I Need Permission?