25A Deerpark Road, Mount Merrion, Co Dublin
Amendments to a previously approved extension, including additional dormer windows and an increased rear extension floor area.
D19B/0095 · Dun Laoghaire Rathdown County Council · Lodged 21 February 2019
- Reference
- D19B/0095
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 21 February 2019
Summary
AI-generatedPermission is sought for amendments to a previously approved application on a semi-detached single-storey dwelling. The changes include an additional front dormer, two rear dormers, two roof lights, and an increased floor area for the rear extension.
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 for amendments to previously approved application (reg. Ref. D17b/0227) to existing semi-detached single story dwelling, to include
- Adjustments to front elevation including an additional dormer roof extension
- Adjustments to rear elevation including 2 no. Dormer roof extensions and 2 no. Roof lights
- Adjustments to rear single storey pitched/flat roof extension including increased floor area and elevational changes
- Revised landscaping and associated site works
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.
Built — construction complete
A commencement notice records works starting on 3 May 2021.
Notified floor area: 157.9 m²
Recent sales nearby
within 500 m| Address | Date | Price | Distance |
|---|---|---|---|
| 24 Deerpark Road, Mount Merrion, Co Dublin | Jun 2025 | €1,270,000 | 61 m |
| 44 Deerpark Rd, Mount Merrion, Dublin | Dec 2025 | €1,250,000 | 110 m |
| 4 Wilson Crescent, Mount Merrion, Dublin | Nov 2025 | €1,210,000 | 110 m |
| 19 Wilson Rd, Mount Merrion, Dublin | Mar 2026 | €1,116,111 | 139 m |
| 6 Wilson Crescent, Mount Merrion, Dublin | Jul 2025 | €980,000 | 146 m |
| 47 Deerpark Rd, Mount Merrion, Blackrock | Mar 2025 | €800,000 | 146 m |
| Innisfallen, 26 Mather Rd South, Mount Merrion | Sept 2025 | €1,325,000 | 156 m |
| 4 Deerpark Road, Mount Merrion, Co Dublin | Nov 2025 | €1,590,000 | 166 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 received21 February 2019
- Decision issued11 April 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
Retention for development. The development consists of: Retention of alterations made to Grant of Permission…
25A Deerpark Road, Mount Merrion, Blackrock, Co. Dublin, A94 H5P3
D22B/0166Dún Laoghaire–RathdownLodged 31 Mar 2022Retention
- GrantedAt this site
Permission is sought for alterations to an existing semi-detached single storey dwelling including — A single…
25A, Deerpark Road, Mount Merrion, Co. Dublin
D17B/0227Dún Laoghaire–RathdownLodged 8 May 2017Extension
- GrantedAt this site
Permission is sought. The development consists of: demolition of existing bungalow (101.4 sqm,) attached…
25 Deerpark Road, Mount Merrion, Co. Dublin, A94 D2Y2
D21A/0454Dún Laoghaire–RathdownLodged 27 Aug 2021New dwelling
- Granted70 m away
Permission for the extension and remodification of existing detached dwelling. The development will consist…
19 Deerpark Road, Mount Merrion, Co. Dublin A94 R7X2
D20A/0250Dún Laoghaire–RathdownLodged 4 Aug 2020Extension
- Granted70 m away
Alterations and extensions to the existing single storey, three bedroom detached dwelling that will include:…
Rossbeg, 24 Deerpark Road, Mount Merrion, Co Dublin, A94E0P4
D26A/0228/WEBDún Laoghaire–RathdownLodged 24 Mar 2026Extension
- Refused70 m away
Alterations and extensions to the existing house to include alterations to the front elevation, alterations…
24 Deerpark Road, Mount Merrion, Co. Dublin, A94E0P4
D25A/0754/WEBDún Laoghaire–RathdownLodged 5 Oct 2025Extension
- Refused70 m away
The demolition of the existing house, 131.4 sq.m.s, and two existing sheds, 24.6 sq.m.s, the construction of…
Rossbeg, 24 Deerpark Road, Mount Merrion, Blackrock, Dublin, A94E0P4
D25A/0600/WEBDún Laoghaire–RathdownLodged 30 Jul 2025New dwelling
- Granted70 m away
Permission for development. The development will consist of the construction of a ground floor extension…
31 Deerpark Road, Mount Merrion, County Dublin, A94 F8X8
D22A/0364Dún Laoghaire–RathdownLodged 24 Aug 2022Extension
Related developments
Similar applications
Ranked by what these developments actually propose, not by matching words — so you can see how comparable applications were decided.
- GrantedExtension
Permission for the construction of a new extension to the existing semi-detached, two-storey dwelling to…
Wychwood, 6 Carrickbrennan Road, Monkstown, Co Dublin
D16B/0200Dún Laoghaire–RathdownLodged 22 Dec 2016
- Part granted, part refusedAlterations
Permission for alterations to the previously granted single storey extension to the rear and single storey…
6 Mapas Road, Dalkey, Co Dublin
D18A/0297Dún Laoghaire–RathdownLodged 5 Apr 2018
- GrantedExtension
Permission is sought for alterations to an existing two storey semi-detached dwelling to include a) the…
91 Landscape Park, Churchtown, Dublin 14
D19B/0331Dún Laoghaire–RathdownLodged 15 Jul 2019
- GrantedExtension
Permission is sought for the extension and alterations of existing semi-detached dwelling. The development…
26 Greygates, Mount Merrion, County Dublin, A94 P3X4
D21A/0178Dún Laoghaire–RathdownLodged 3 Mar 2021
- GrantedExtension
Permission is sought for alterations to an existing semi detached two storey dwelling including — The…
134, Foxrock Park, Foxrock, Dublin 18
D16A/0764Dún Laoghaire–RathdownLodged 18 Oct 2016
- GrantedExtension
Permission is being sought for alterations and additions to an existing 2-storey (with dormer) semi-detached…
44, South Avenue, Mount Merrion, Dublin,
D21B/0691Dún Laoghaire–RathdownLodged 17 Dec 2021
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