The Coach House, Mount Merrion Avenue, Blackrock, Co Dublin
Major roof alterations and a two-storey extension to an existing dwelling.
D20A/0680 · Dun Laoghaire Rathdown County Council · Lodged 26 January 2021
- Reference
- D20A/0680
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 26 January 2021
Summary
AI-generatedThe project involves removing the existing roofs over the two-storey and single-storey sections of the dwelling. Works include constructing a new roof with a higher ridge, a new two-storey flat roof, a two-storey flat roof extension to the south, and internal layout changes.
- Storeys
- 2
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 is sought for removal of existing roof over main two storey section of dwelling to north east, new roof and velux windows with higher ridge over main two storey section of dwelling to north east, removal of roof over single storey section of dwelling to west, new two storey flat roof over the west part of the dwelling, two storey flat roof extension to south of west part of building, new internal layout in dwelling, create new first floor section over west section of building, new...
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 |
|---|---|---|---|
| 95 Merrion Park, Blackrock, Co. Dublin | Sept 2025 | €1,120,000 | 24 m |
| 26 Ashurst, Mount Merrion Ave, Blackrock | Aug 2025 | €510,500 | 48 m |
| 79 Merrion Park, Blackrock, Co Dublin | Nov 2025 | €1,330,000 | 58 m |
| 87 Merrion Park, Hill Ave South, Blackrock | Dec 2025 | €840,000 | 75 m |
| 78 Merrion Park, Booterstown, Blackrock | Feb 2025 | €920,000 | 80 m |
| 28 Merrion Hall, Mount Merrion Ave, Blackrock | Feb 2025 | €600,000 | 83 m |
| Apt 6, Fortwilliam, Mount Merrion Ave | Jun 2025 | €460,000 | 125 m |
| 57 Merrion Park, Blackrock, Dublin | Apr 2025 | €760,000 | 172 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 received26 January 2021
- Decision issued19 February 2021
- Appeal submitted18 March 2021
- Appeal decided17 June 2021
In the area
Applications near this site
Other planning applications within about 500 m — what else is being proposed or built nearby.
- Refused40 m away
Demolition of the existing 74 square metre single storey house and the construction of 2, two storey, two…
North side of the entrance to the Ashurst Apartment Complex, Mount Merrion Avenue, Blacrock, Co.
D02A/0190Dún Laoghaire–RathdownLodged 8 Mar 2002New dwelling
- Granted40 m away
Demolition of existing 74 m2 single storey house and the construction of a new, two storey, three bedroom…
Gate House, Ashurst, Mount Merrion Avenue, Blackrock, Co. Dublin
D03A/0094Dún Laoghaire–RathdownLodged 9 Jun 2003New dwelling
- Granted40 m away
Amendments to approved Planning Permission Ref. D03A/0094 to include for the increase of single storey return…
Gate Lodge, Ashurst, Mount Merrion Avenue, Blackrock, Co. Dublin
D04A/0434Dún Laoghaire–RathdownLodged 21 Apr 2004Alterations
- Refused40 m away
Amendments to approved planning permission (Reg. Ref. D03A/0094) to include increase in ridge height by 2m,…
Gate Lodge, Ashurst, Mount Merrion Avenue, Blackrock, Co. Dublin
D03A/1201Dún Laoghaire–RathdownLodged 16 Dec 2003Alterations
- Granted50 m away
Planning permission is sought for a single storey extension to the side and rear
102, Merrion Park, Blackrock, Co. Dublin.
D11B/0147Dún Laoghaire–RathdownLodged 26 Apr 2011Extension
- Granted50 m away
The covering-in of existing roof balcony for use as a store
Merrion House, Mount Merrion Avenue, Blackrock, Co. Dublin
D04B/0353Dún Laoghaire–RathdownLodged 19 Jul 2004Extension
- Granted50 m away
Permission sought for the alteration of an existing 4 bed detached dwelling to a 5 bed detached dwelling…
Merrion House, Mount Merrion Avenue, Blackrock, Co Dublin
D21A/0116Dún Laoghaire–RathdownLodged 12 Feb 2021Alterations
- Granted60 m away
Permission for development at site. The development will consist of single storey extension to side of…
79, Merrion Park, Blackrock, Co. Dublin
D17A/0519Dún Laoghaire–RathdownLodged 8 Jun 2017Extension
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 is sought for: (A) The removal of existing main roof structure, including dormer to side, and…
41, Redesdale Road, Mount Merrion, Co. Dublin
D11A/0286Dún Laoghaire–RathdownLodged 21 Jun 2011
- GrantedExtension
Permission is sought for the removal of the flat roof of the single storey portion of dwelling (facing…
26, Oakdale Drive, Glenageary, Dublin
D17B/0511Dún Laoghaire–RathdownLodged 15 Nov 2017
- GrantedExtension
Permission is sought for alterations to a part 2 storey-part 1 storey detached dwelling to include a) the…
11, Hillside Drive, Rathfarnham, Dublin 14, D14FY04
D25A/0514/WEBDún Laoghaire–RathdownLodged 30 Jun 2025
- GrantedExtension
Permission is sought for development consisting of; demolition of existing ground floor flat roof extensions…
Cove Lodge, Marine Parade, Sandycove, Co Dublin, A96E7F9
D21A/0229Dún Laoghaire–RathdownLodged 21 May 2021
- GrantedExtension
Permission for the renovation and extension of the existing single storey detached dwelling to include — The…
5, Cherrygarth, Mount Merrion, Co Dublin
D18A/1010Dún Laoghaire–RathdownLodged 30 Oct 2018
- GrantedExtension
Permission is sought for the following: (a). Two storey pitched roof extension to the rear of the existing…
17 Wyckham Park Road, Dundrum, Dublin 16, D16 K652
D22B/0093Dún Laoghaire–RathdownLodged 24 Feb 2022
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