20 Glenabbey Road, Mount Merrion, Co. Dublin
Attic conversion and roof extension to form a Dutch hip with rear dormer windows in Mount Merrion.
D21B/0132 · Dun Laoghaire Rathdown County Council · Lodged 18 March 2021
- Reference
- D21B/0132
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 18 March 2021
Summary
AI-generatedPlanning permission is sought for a new attic extension at 20 Glenabbey Road. The works will involve extending the existing roof ridge line, raising the side gable wall to form a Dutch hip, adding new rear dormer windows, and converting the attic space.
- Floor area
- 26 m²
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 sought for the construction of a new attic extension by extending the existing roof ridge line & raising the side / gable wall to form a 'dutch hip' to the existing hipped roof, complete with new dormer windows to rear elevation, new attic conversion (area 26.24sq. M) to include velux roof windows to front elevation & new/revised windows at landing levels within the side elevation, together with 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.
Recent sales nearby
within 500 m| Address | Date | Price | Distance |
|---|---|---|---|
| 23 Glenabbey Road, Mount Merrion, Co Dublin | Nov 2025 | €1,410,000 | 65 m |
| Cherryview, 1a Glenabbey Rd, Mount Merrion | Mar 2025 | €1,250,000 | 100 m |
| 52 Cedarmount Road, Mount Merrion, Co Dublin | Nov 2025 | €1,000,000 | 160 m |
| 21 Cedarmount Rd, Mount Merrion, Dublin | Nov 2025 | €910,000 | 189 m |
| 56 Glenabbey Rd, Mount Merrion, Dublin | Jan 2025 | €1,315,000 | 199 m |
| 49 Cedarmount Rd, Mount Merrion, Blackrock | Aug 2025 | €830,000 | 217 m |
| 35 Cedarmount Rd, Mount Merrion, Blackrock | Mar 2026 | €880,000 | 226 m |
| 47 Deerpark Rd, Mount Merrion, Blackrock | Mar 2025 | €800,000 | 246 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 received18 March 2021
- Decision issued11 May 2021
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
Construction of a new single storey rear addition to comprise kitchen/dining and utility rooms
20, Glenabbey Road, Mount Merrion, Co. Dublin
D04B/0349Dún Laoghaire–RathdownLodged 10 May 2004Extension
- GrantedAt this site
Planning permission for development which will consist of demolishing the single storey concrete flat roofed…
22, Glenabbey Road, Mount Merrion, Blackrock, Co. Dublin
D10B/0398Dún Laoghaire–RathdownLodged 20 Sept 2010Extension
- GrantedAt this site
Permission for a domestic extension and alterations to existing semi-detached dwelling comprised of: single…
18, Glenabbey Road, Mount Merrion, Co Dublin
D21A/0563Dún Laoghaire–RathdownLodged 16 Jun 2021Extension
- GrantedAt this site
Planning permission for development which will consist of demolishing the single storey concrete flat roofed…
24, Glenabbey Road, Mount Merrion, Blackrock, Co. Dublin
D10B/0400Dún Laoghaire–RathdownLodged 21 Sept 2010Extension
- RefusedAt this site
Permission for ground floor extension to front, first floor extension to side, two-storey extension to rear…
16 Glenabbey Road, Mount Merrion, Co Dublin
D17B/0177Dún Laoghaire–RathdownLodged 12 Apr 2017Extension
- Granted30 m away
The development will consist of conversion of attic to study with dormer window flat roof to rear, dormer…
16, Glenabbey Road, Mount Merrion, Co. Dublin.
D13B/0286Dún Laoghaire–RathdownLodged 22 Aug 2013Extension
- Granted30 m away
Permission for first floor bedroom with ensuite bathroom rear extension over existing kitchen/dining room,…
14 Glenabbey Road, Mount Merrion, Co Dublin A94 A6W6
D19A/0266Dún Laoghaire–RathdownLodged 18 Apr 2019Extension
- Granted50 m away
Retention for roof window (previously installed) to front (elevation) of existing main roof and for —…
10, Glenabbey Road, Mount Merrion, Blackrock, Dublin, A94N9F4
D23B/0575Dún Laoghaire–RathdownLodged 13 Dec 2023Retention
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 proposed attic conversion comprising the construction of a new dutch hip, roof…
5, Kilmacud Park, Stillorgan, Co. Dublin
D18B/0077Dún Laoghaire–RathdownLodged 15 Feb 2018
- GrantedExtension
Permission for proposed build-up of existing hip to side of roof into dutch hip at attic level, with window…
67, Curlew Road, Drimnagh, Dublin 12 D12 HE30
4184/23Dublin CityLodged 20 Jul 2023
- GrantedExtension
Permission is sought for conversion of the attic including — Part build up of side gable wall of house and…
32, Ashton Park, Monkstown, Blackrock, Co Dublin, A94A2C9
D21B/0068Dún Laoghaire–RathdownLodged 22 Feb 2021
- GrantedExtension
Permission sought for alterations to existing roof to allow for new attic conversion (28.86sq.m) to include…
18, Delaford Grove, Dublin 16
SD24B/0207WSouth DublinLodged 9 May 2024
- GrantedExtension
Planning permission is sought for attic development to include removal of existing hipped section of roof,…
11, Temple View Rise, Clarehall, Dublin 13, D13 K1K6
WEB1501/22Dublin CityLodged 24 May 2022
- GrantedExtension
Planning permission is sought for proposed attic roof space conversion with dormer windows to rear, raise up…
26 Abbey Drive, Navan Road, Riverston Abbey, Dublin 7
2665/18Dublin CityLodged 5 Apr 2018
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