43, Sefton, Dun Laoghaire, Co Dublin, A96V9H9
Single storey side extension, bike shed, and widened driveway in Dun Laoghaire.
D21A/0746 · Dun Laoghaire Rathdown County Council · Lodged 20 August 2021
- Reference
- D21A/0746
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 20 August 2021
Summary
AI-generatedThe project at 43 Sefton involves the construction of a single storey mono-pitch extension and a flat roof bike shed to the side of the existing house. It also includes internal modifications, a new side window, and the widening of the vehicular site access.
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 the following works. Proposed single story mono-pitch extension and flat roof bike shed to the side of the existing building along with associated internal modifications and siteworks to include a new window to side at rear and widening of the vehicular site access
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 6 September 2022.
Notified floor area: 16.5 m²
Recent sales nearby
within 500 m| Address | Date | Price | Distance |
|---|---|---|---|
| 46 Sefton, Rochestown Ave, Dun Laoghaire | Feb 2026 | €790,000 | 30 m |
| 18 Sefton, Rochestown Ave, Dun Laoghaire | Jul 2025 | €850,000 | 109 m |
| 54 Sefton, Rochestown Ave, Dun Laoghaire | May 2026 | €980,000 | 110 m |
| 17 Whitethorn Walk, Carriglea Downs, Dun Laoghaire | Oct 2025 | €700,000 | 118 m |
| 17 Sefton, Rochestown Ave, Dun Laoghaire | Oct 2025 | €805,000 | 119 m |
| 22 Sefton Green, Rochestown Ave, Dun Laoghaire | Mar 2025 | €722,000 | 139 m |
| 7 Sefton, Rochestown Ave, Dun Laoghaire | Oct 2025 | €1,008,000 | 165 m |
| 8 Whitethorn Walk, Carriglea Downs, Dun Laoghaire | May 2026 | €700,000 | 165 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 received20 August 2021
- Decision issued7 October 2021
In the area
Applications near this site
Other planning applications within about 500 m — what else is being proposed or built nearby.
- Invalid70 m away
Permission for Retention of existing single storey side extension, Permission to construct a single storey…
12 Sycamore Court, Carriglea Downs, Kill Avenue, Dun Laoghaire, Co Dublin
D18B/0537Dún Laoghaire–RathdownLodged 12 Dec 2018Retention
- Granted70 m away
Permission for Retention of existing single storey side extension, Permission to construct a single storey…
12 Sycamore Court, Carriglea Downs, Kill Avenue, Dun Laoghaire, Co Dublin
D19B/0005Dún Laoghaire–RathdownLodged 18 Apr 2019Retention
- Invalid70 m away
Permission for Retention of existing single storey side extension, Permission to construct a single storey…
12 Sycamore Court, Carriglea Downs, Kill Avenue, Dun Laoghaire, Co Dublin
D18B/0477Dún Laoghaire–RathdownLodged 1 Nov 2018Retention
- Granted70 m away
Permission for an extension renovation to existing fully serviced two storey semidetached house with side &…
12, Sycamore Court, Carriglea Downs, Kill Avenue, Dun Laoghaire, Co Dublin
D21B/0108Dún Laoghaire–RathdownLodged 8 Mar 2021Extension
- Granted70 m away
Retention of existing single storey side extension, permission to construct a single storey extension to the…
12 Sycamore Court, Carriglea Downs, Kill Avenue, Dun Laoghaire, Co. Dublin
D19B/0516Dún Laoghaire–RathdownLodged 15 May 2020Retention
- Granted80 m away
Permission for the conversion of the existing attic space, comprising a new dormer to the side elevation, 2…
19 Carriglea Avenue, Carriglea Downs, Kill Avenue, Dun Laoghaire, Co Dublin
D14B/0006Dún Laoghaire–RathdownLodged 16 Jan 2014Extension
- Granted90 m away
Permission is sought for the construction of a single storey extension to the rear with alterations to the…
7, Carriglea Avenue, Dun Laoghaire, Co. Dublin
D07B/0234Dún Laoghaire–RathdownLodged 16 Mar 2007Extension
- Granted100 m away
A two-storey and single storey, pitched roof extension to rear of existing two-storey, semi-detached house
9, Sycamore Court, Carriglea Downs, Kill Avenue, Dun Laoghaire, Co. Dublin
D08B/0201Dún Laoghaire–RathdownLodged 14 Mar 2008Extension
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 following works: Proposed single story flat roof extension to side of existing building…
13 Ardagh Drive, Blackrock, Co. Dublin.
D19B/0471Dún Laoghaire–RathdownLodged 7 Nov 2019
- GrantedExtension
Permission for — Construction of a single storey extension to the front of the property
50 Mulvey Park, Dundrum, Dublin 14
D18A/1197Dún Laoghaire–RathdownLodged 19 Dec 2018
- GrantedExtension
Proposed single story flat roof extension to rear to include a bike storage area. Proposed small single story…
55, Castlebyrne Park, Blackrock, Dublin, A94VA48
D24B/0364/WEBDún Laoghaire–RathdownLodged 15 Aug 2024
- GrantedExtension
Permission for the following works: A) Proposed two storey flat roof extension to side and single storey…
244, Kildare Road, Dublin 12
3399/20Dublin CityLodged 18 Sept 2020
- GrantedExtension
Permission for the following works: A) Proposed two storey mono-pitch extension to side of existing property…
48 Maple Manor, Cabinteely Dublin 18
D20A/0802Dún Laoghaire–RathdownLodged 3 Nov 2020
- GrantedExtension
Permission is sought for a single storey flat roofed extension to the front and the demolition of a shed and…
25, Dun Emer Road, Dundrum, Dublin 16
D09A/0757Dún Laoghaire–RathdownLodged 15 Dec 2009
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