40, Deerpark Road, Mount Merrion, Co. Dublin.
Large multi-level extension including a basement, attic dormer, and a second driveway entrance.
D09A/0444 · Dun Laoghaire Rathdown County Council · Lodged 30 September 2009
- Reference
- D09A/0444
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 30 September 2009
Summary
AI-generatedThis extensive project features a two-storey and single-storey over basement residential extension to the rear, a flat-roofed attic dormer, and a front porch with a double bay window. It also proposes a second vehicle access point to the front car parking area.
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
Pitched roofed two storey and single storey over basement residential extension with associated siteworks and ground floor terrace to rear, to have bay window at ground floor rear, together with flat roofed dormer extension to rear of attic, 2 no. Roof lights to side pitch and a single storey double bay window extension and porch to front; and for the provision of a second means of access to car parking to front of existing two storey, semi-detached house.
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 |
|---|---|---|---|
| 44 Deerpark Rd, Mount Merrion, Dublin | Dec 2025 | €1,250,000 | 19 m |
| 19 Wilson Rd, Mount Merrion, Dublin | Mar 2026 | €1,116,111 | 71 m |
| 47 Deerpark Rd, Mount Merrion, Blackrock | Mar 2025 | €800,000 | 81 m |
| 24 Deerpark Road, Mount Merrion, Co Dublin | Jun 2025 | €1,270,000 | 94 m |
| 4 Wilson Crescent, Mount Merrion, Dublin | Nov 2025 | €1,210,000 | 120 m |
| 6 Wilson Crescent, Mount Merrion, Dublin | Jul 2025 | €980,000 | 129 m |
| 8 Wilson Road, Mount Merrion, Co Dublin | Nov 2025 | €900,000 | 166 m |
| 55 Wilson Road, Mount Merrion, Blackrockprice excludes VAT | Nov 2025 | €1,585,903 | 202 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 received30 September 2009
- Decision issued23 October 2009
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
Permission is sought for amendments to previously approved planning permission with ref. no. D09A/0444 for…
40 Deerpark Road, Mount Merrion, Co. Dublin
D11B/0026Dún Laoghaire–RathdownLodged 31 Jan 2011Alterations
- Awaiting decisionAt this site
Ground level single storey rear extension, alterations to existing rear extension + 2No. flat roof rooflights…
36, Deerpark Road, Mount Merrion, Blackrock, Co Dublin, A94Y3K5
D26B/0337/WEBDún Laoghaire–RathdownLodged 2 Jun 2026Extension
- Granted30 m away
Permission for demolition of single storey garage and ancillary structures to side, construction of two…
34 Deerpark Road, Mount Merrion, Blackrock, Co Dublin
D18B/0231Dún Laoghaire–RathdownLodged 29 May 2018Extension
- Invalid40 m away
The development will consist of a first floor extension to front, side & rear of dwelling (floor area…
48, Deerpark Road, Mount Merrion, Co Dublin, A94K3T7
D26B/0316/WEBDún Laoghaire–RathdownLodged 21 Apr 2026Extension
- Awaiting decision40 m away
A first floor extension to front, side & rear of dwelling (floor area 31.30m.sq.), Conversion of attic space…
48, Deerpark Road, Mount Merrion, Co Dublin, A94K3T7
D26B/0323/WEBDún Laoghaire–RathdownLodged 31 May 2026Extension
- Refused40 m away
(A) Demolition of existing 178sqm two storey (plus non habitable attic space), 4 bedrooms dwelling (B)…
32, Deerpark Road, Mount Merrion, Blackrock, Dublin, A94X7K4
D23A/0539Dún Laoghaire–RathdownLodged 20 Mar 2024New dwelling
- Awaiting decision40 m away
A) Demolition of existing c.178sqm two-storey (plus non-habitable attic space), 4 bedrooms dwelling; b)…
32, Deerpark Road, Mount Merrion, Dublin, A94X7K4
D26A/0521/WEBDún Laoghaire–RathdownLodged 9 Jul 2026New dwelling
- Invalid40 m away
(A) Demolition of existing 178sqm two storey (plus non habitable attic space) 4 bedrooms dwelling. (B)…
32, Deerpark Road, Mount Merrion, Blackrock, Dublin, A94X7K4
D23A/0498Dún Laoghaire–RathdownLodged 25 Jul 2023New dwelling
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 part single part two storey extension to front, side and rear of…
6 Avoca Place, Blackrock, Co Dublin
D17A/0343Dún Laoghaire–RathdownLodged 12 Apr 2017
- GrantedExtension
Alteration and extension to existing semi-detached house to include two storey extension to front, single…
44, Marian Road, Rathfarnham, Dublin 14
SD08B/0007South DublinLodged 2 Jan 2008
- GrantedExtension
Permission for a domestic extension and alterations to existing two-storey semi-detached dwelling comprised…
16 Pine Valley Drive, Rathfarnham, Dublin 16
D22A/0147Dún Laoghaire–RathdownLodged 25 Feb 2022
- GrantedExtension
Extension to side at first floor level over existing side extension, to have extended hipped, pitched roof…
71, Trimleston Gardens, Bootestown, Co. Dublin
D08B/0182Dún Laoghaire–RathdownLodged 10 Mar 2008
- GrantedExtension
Extension and alterations of existing semi -detached dwelling. The development will consist of the following…
51, Weston Meadow, Lucan, Co. Dublin
SD23B/0124South DublinLodged 21 Mar 2023
- GrantedExtension
Two storey extension to the side and front of dwelling over an existing single storey structure; single…
3, Templeville Park, Dublin 6w
SD21B/0089South DublinLodged 25 Feb 2021
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