34, Thornhill Road, Mount Merrion, Blackrock, County Dublin A94PE89
Changes to the ground floor and attic layout of a house in Blackrock.
D19B/0061 · Dun Laoghaire Rathdown County Council · Lodged 5 April 2019
- Reference
- D19B/0061
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 5 April 2019
Summary
AI-generatedThe applicant is seeking permission to modify the ground floor and attic floor plans from a previously permitted development under planning reference D18B/0390.
Generated from the description above by an AI model and may contain mistakes. The council’s description is the authoritative record.
Official record
Development description
Permission. The development will consist of a change of ground floor and attic floor plan to that previously permitted (planning registration reference d18b/0390).
Land-use zoning
What this land is zoned for
“A To provide residential development and improve residential amenity while protecting the existing residential amenities”
Objective set by the COUNTY DEVELOPMENT PLAN 2022-2028 (2022–2028). The planning authority decides each application on its own merits — this is the zoning context, not a compliance assessment.
Read the zoning objectives in the development planBuilt & sold
What happened next
Beyond the decision: whether this development was built, and what property here has sold for.
Recent sales nearby
within 500 m| Address | Date | Price | Distance |
|---|---|---|---|
| 7 Clonmore Rd, Mount Merrion, Dublin | Sept 2025 | €1,400,000 | 130 m |
| 33 Clonmore Rd, Mount Merrion, Dublin | Apr 2026 | €1,425,000 | 134 m |
| 98 Lr Kilmacud Rd, Stillorgan, Dublin | Jul 2025 | €1,187,000 | 184 m |
| 24 South Ave, Mount Merrion, Dublin | Dec 2025 | €1,580,000 | 192 m |
| 28 South Ave, Mount Merrion, Dublin | Sept 2025 | €1,400,000 | 192 m |
| 32 South Ave, Mount Merrion, Dublin | Jan 2026 | €1,725,000 | 197 m |
| 17 Dale Close, Stillorgan | Nov 2025 | €920,000 | 209 m |
| 14 South Avenue, Mount Merrion, Co Dublin | Sept 2025 | €920,000 | 215 m |
Nearby properties, not this site — a guide to local values.
Sources: Building Control Management System (commencement notices) and the Residential Property Price Register, licensed under CC BY 4.0. Records are matched to this application by location and may not be exhaustive; always confirm against the official source before relying on them.
Key dates
Timeline
- Application received5 April 2019
- Decision issued1 May 2019
In the area
Applications near this site
Other planning applications within about 500 m — what else is being proposed or built nearby.
- GrantedAt this site
The development will consist of the demolition of the existing garage, various outhouses and the removal of…
34, Thornhill Road, Mount Merrion, Blackrock, County Dublin, A94PE89
D18B/0390Dún Laoghaire–RathdownLodged 31 Aug 2018Extension
- GrantedAt this site
Retention is sought for widened (3.2m) vehicular entrance to the front and permission is sought for the…
36, Thornhill Road, Mount Merrion, Co Dublin
D20A/0738Dún Laoghaire–RathdownLodged 9 Oct 2020Extension
- GrantedAt this site
Retention permission. The area to be retained consists of the infilled area to the rear of the ground floor…
36 Thornhill Road, Mount Merrion, Co. Dublin, A94A6K2
D22B/0072Dún Laoghaire–RathdownLodged 17 Feb 2022Retention
- GrantedAt this site
Permission for the demolition of existing garage structure and sheds, rear single story extension and front…
30 Thornhill Road, Mount Merrion, Co Dublin
D17A/0333Dún Laoghaire–RathdownLodged 11 Apr 2017Extension
- Granted30 m away
The demolition of the existing single storey garage to the side of the semi-detached two-storey house —…
28, Thornhill Road, Mount Merrion, Co. Dublin
D08A/1108Dún Laoghaire–RathdownLodged 1 Dec 2008Extension
- Refused30 m away
(1). The demolition of the existing garage/sheds to the side and chimney stack to the rear of the existing…
28, Thornhill Road, Blackrock, Dublin
D08A/0831Dún Laoghaire–RathdownLodged 17 Jul 2008Extension
- Awaiting decision30 m away
Compliance with Condition No. 3 of Reg Ref No. D23A/0302
40, Thornhill Road, Mount Merrion, Blackrock, Dublin, A94K4X0
D23A/0302/C1Dún Laoghaire–RathdownLodged 1 Nov 2024Other
- Compliance submission30 m away
Compliance with Condition No 12a of Reg Ref No. D25A/0089/WEB
40, Thornhill Road, Mount Merrion, Blackrock, Dublin, A94K4X0
D25A/0089/WEB/C1Dún Laoghaire–RathdownLodged 6 Jun 2025Other
Related developments
Similar applications
Ranked by what these developments actually propose, not by matching words — so you can see how comparable applications were decided.
- GrantedAlterations
Permission for works. The development will consist of amendments to previously permitted planning application…
57 Cedarmount Road, Mount Merrion, County Dublin A94 X2F9
D20A/0445Dún Laoghaire–RathdownLodged 7 Sept 2020
- GrantedAlterations
Permission for development comprising of minor amendments to previously approved development, reference…
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D21B/0411Dún Laoghaire–RathdownLodged 6 Aug 2021
- GrantedAlterations
Permission for development consisting of revisions to the previously granted planning application file…
52, South Avenue, Mount Merrion, Co. Dublin
D13B/0158Dún Laoghaire–RathdownLodged 2 Oct 2013
- GrantedRetention
Of alterations to plans and elevations previously granted under planning ref. no. 18/992, including the…
1279 Melitta Road , Kildare Town , Co. Kildare.
20540KildareLodged 29 May 2020
- GrantedRetention
Permission for Retention of the single storey extension to the rear and for alterations to the previously…
49 Ludford Drive, Ballinteer, Dublin 16
D16B/0078Dún Laoghaire–RathdownLodged 26 Feb 2016
- GrantedExtension
Permission sought for modifications to already approved development (Planning Reference No. D19B/0021), to…
9, Gledswood Close, Clonskeagh, Dublin 14
D19B/0288Dún Laoghaire–RathdownLodged 10 Jun 2019
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