36 Thornhill Road, Mount Merrion, Co. Dublin, A94A6K2
Retention of an infilled area to the rear of the ground floor extension.
D22B/0072 · Dun Laoghaire Rathdown County Council · Lodged 17 February 2022
- Reference
- D22B/0072
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission for Retention
- Received
- 17 February 2022
Summary
AI-generatedRetention permission is sought for an infilled area to the rear of the ground floor extension. The extension features a flat roof and follows a previous grant of planning permission.
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
Retention permission. The area to be retained consists of the infilled area to the rear of the ground floor extension with flat roof following previous grant of permission (dlr ref. D20a/0738).
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 | 128 m |
| 33 Clonmore Rd, Mount Merrion, Dublin | Apr 2026 | €1,425,000 | 145 m |
| 98 Lr Kilmacud Rd, Stillorgan, Dublin | Jul 2025 | €1,187,000 | 171 m |
| 17 Dale Close, Stillorgan | Nov 2025 | €920,000 | 203 m |
| 24 South Ave, Mount Merrion, Dublin | Dec 2025 | €1,580,000 | 204 m |
| 28 South Ave, Mount Merrion, Dublin | Sept 2025 | €1,400,000 | 205 m |
| 32 South Ave, Mount Merrion, Dublin | Jan 2026 | €1,725,000 | 209 m |
| 14 South Avenue, Mount Merrion, Co Dublin | Sept 2025 | €920,000 | 227 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 received17 February 2022
- Decision issued11 April 2022
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
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
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
Permission. The development will consist of a change of ground floor and attic floor plan to that previously…
34, Thornhill Road, Mount Merrion, Blackrock, County Dublin A94PE89
D19B/0061Dún Laoghaire–RathdownLodged 5 Apr 2019Alterations
- Awaiting decisionAt this site
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 submissionAt this site
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
- GrantedAt this site
Demolition of the single storey conservatory extension to rear and the garage and store to side to allow for…
40, Thornhill Road, Mount Merrion, Blackrock, Dublin, A94K4X0
D23A/0302Dún Laoghaire–RathdownLodged 8 May 2023Extension
- GrantedAt this site
Retention Permission is sought for demolition of the existing dwelling and garage in its entirety, Permission…
40, Thornhill Road, Mount Merrion, Blackrock, Dublin, A94K4X0
D25A/0089/WEBDún Laoghaire–RathdownLodged 6 Feb 2025New dwelling
- InvalidAt this site
Permission is sought for modifications to previously permitted Planning Application reg/ref: D23A/0302 to…
40, Thornhill Road, Mount Merrion, Blackrock, Dublin, A94K4X0
D24A/0906/WEBDún Laoghaire–RathdownLodged 13 Nov 2024Retention
Related developments
Similar applications
Ranked by what these developments actually propose, not by matching words — so you can see how comparable applications were decided.
- GrantedRetention
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- GrantedRetention
Retention permission. The areas of the building to be retained that differ from the previously granted…
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D20B/0034Dún Laoghaire–RathdownLodged 17 Jun 2020
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RETENTION: The Retention Permission to retain the two storey flat roof extension to the rear and the flat…
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WEB1521/20Dublin CityLodged 5 Aug 2020
- InvalidRetention
RETENTION: Retention planning permission is sought for demolition of existing extension. Demolition of rear…
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WEB1403/26Dublin CityLodged 3 Dec 2025
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