20 Clonmore Road, Mount Merrion, Blackrock, A94 W1X0
Demolition of a garage and construction of a single-storey side extension for a granny flat and home office in Mount Merrion.
D22A/0712 · Dun Laoghaire Rathdown County Council · Lodged 2 December 2022
- Reference
- D22A/0712
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 2 December 2022
Summary
AI-generatedThe development consists of the demolition of an existing garage and shed, followed by the construction of a single-storey side extension to accommodate a granny flat and home office/guest room. It also includes widening the existing vehicular access.
- Storey
- 1
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
The development will consist of the demolition of the existing garage and shed, construction of a single storey extension to the side for granny flat and home office/guest room. Widening of the existing vehicular access onto clonmore road.
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 | 59 m |
| 13 Redesdale Rd, Mount Merrion, Dublin | Sept 2025 | €850,000 | 114 m |
| 27 Redesdale Rd, Mount Merrion, Dublin | May 2025 | €1,000,000 | 123 m |
| 71 Trees Road, Mount Merrion, Co Dublin | Aug 2025 | €1,480,000 | 155 m |
| 21 Cedarmount Rd, Mount Merrion, Dublin | Nov 2025 | €910,000 | 179 m |
| 33 Clonmore Rd, Mount Merrion, Dublin | Apr 2026 | €1,425,000 | 192 m |
| 10 Redesdale Rd, Mount Merrion, Co Dublin | Jun 2026 | €1,220,000 | 193 m |
| 35 Cedarmount Rd, Mount Merrion, Blackrock | Mar 2026 | €880,000 | 212 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 received2 December 2022
- Decision issued22 December 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 & Planning permission. i) Retention to retain a shed comprising an entertainment room/gym/playroom…
20, Clonmore Road, Mount Merrion, Blackrock, Dublin, A94W1X0
D23A/0061Dún Laoghaire–RathdownLodged 1 Feb 2023Extension
- Granted30 m away
Planning permission is sought for the partial demolition and proposed extension
16, Clonmore Road, Mount Merrion, Co. Dublin
D10B/0329Dún Laoghaire–RathdownLodged 2 Mar 2011Extension
- Granted40 m away
Permission for development consisting of rear single storey extension 39.8 m2, and alterations comprising:…
1, Clonmore Road, Mount Merrion, Co Dublin.
D13B/0083Dún Laoghaire–RathdownLodged 13 Mar 2013Extension
- Granted50 m away
Permission for the Retention and completion of works to fire damaged house as follows: amended roof profile…
28 Clonmore Road, Mount Merrion, Co Dublin
D14B/0353Dún Laoghaire–RathdownLodged 21 Oct 2014Retention
- Granted50 m away
Permission is sought for; (A) the demolition of existing garage/single storey extension to the side. (B) The…
120, Trees Road Upper, Mount Merrion, Co. Dublin
D12B/0043Dún Laoghaire–RathdownLodged 10 Feb 2012Extension
- Granted50 m away
Retention and completion of vehicular and pedestrian access
114, TREES ROAD, MOUNT MERRION, CO. DUBLIN.
D04A/0990Dún Laoghaire–RathdownLodged 30 Aug 2004Retention
- Granted50 m away
Permission for the following: a) demolition of the existing garage/single-storey extension to the rear & side…
118 Tree's Road Upper, Mount Merrion, Co. Dublin, A94 PR80
D23A/0524Dún Laoghaire–RathdownLodged 8 Aug 2023Extension
- Granted60 m away
Retention of single storey pitched roof, domestic related shed in the rear garden, enlarging vehicular…
122, Trees Road Upper, Mount Merrion, Co. Dublin
D05A/0231Dún Laoghaire–RathdownLodged 25 Feb 2005Retention
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
Retention & Planning permission. i) Retention to retain a shed comprising an entertainment room/gym/playroom…
20, Clonmore Road, Mount Merrion, Blackrock, Dublin, A94W1X0
D23A/0061Dún Laoghaire–RathdownLodged 1 Feb 2023
- GrantedExtension
The development will consist of the i) the demolition of the existing garage to the rear of the house, ii)…
40 College Park , Dunshaughlin , Co. Meath A85 EY62
2368MeathLodged 26 Jan 2023
- GrantedExtension
Development will consist of a new gable wall to the side of the existing house. A new window at attic level…
131 Riverside Park, Clonshaugh, Dublin 17, D17 YF80
3046/25Dublin CityLodged 7 Feb 2025
- GrantedExtension
Demolition of existing garage attached to side of dwelling house. Construction of a single storey extension…
26 Delford Drive, Rochestown Road, Monfieldstown, Rochestown, Cork
144272corkLodged 14 Feb 2014
- Part granted, part refusedExtension
The development will consist of the part demolition of existing extension and outbuildings, the erection of a…
30, Oak Park Avenue, Santry, Dublin 9, D09 VK76
3018/21Dublin CityLodged 23 Jun 2021
- GrantedExtension
The development will consist of the construction of extension to side of residence. Change of use of garage…
no 8 St Enda's Villas , Proudstown Road Blackcastle Navan , Co. Meath
2660533MeathLodged 7 May 2026
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