17, Somerton, Dun Laoghaire, Co. Dublin, A96X3P0
First-floor rear extension and attic conversion with a rear dormer window.
D22B/0457 · Dun Laoghaire Rathdown County Council · Lodged 28 October 2022
- Reference
- D22B/0457
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 28 October 2022
Summary
AI-generatedThe development consists of a first-floor rear extension and an attic conversion to an existing mid-terrace two-storey house. Works include raising the existing roofline and chimney stack, adding a rear-facing dormer window, and internal alterations for a new attic stairs.
- Storeys
- 3
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 a rear first floor extension and attic conversion including raising of existing roofline and chimney stack and provision of rear facing dormer window, internal alterations for new attic stairs, along with all necessary and associated site works to an existing mid-terrace two storey dwelling.
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 |
|---|---|---|---|
| 82 Granitefield Manor, Rochestown Avenue, Dun Laoghaire | May 2025 | €355,000 | 180 m |
| 88 Sallynoggin Park, Dun Laoghaire, Dublin | Jan 2026 | €575,000 | 187 m |
| 64 Sallynoggin Park, Sallynoggin, Dublin | Dec 2025 | €465,000 | 208 m |
| 5a Sefton, Rochestown Ave, Dun Laoghaire | Jul 2026 | €860,000 | 241 m |
| 54 Sefton, Rochestown Ave, Dun Laoghaire | May 2026 | €980,000 | 256 m |
| 133 Orourke Park, Sallynoggin, Dublin | Nov 2025 | €590,000 | 272 m |
| 12 Sallynoggin Rd Upper, Dun Laoghaire, Dublin | Mar 2026 | €575,000 | 277 m |
| 7 Sefton, Rochestown Ave, Dun Laoghaire | Oct 2025 | €1,008,000 | 278 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 received28 October 2022
- Decision issued21 December 2022
- Appeal submitted26 January 2023
- Appeal decided25 January 2024
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 for attic conversion and dormer window to the rear; internal alterations for new attic stairs…
17, Somerton, Rochestown Avenue, Dun Laoghaire, Dublin, A96X3P0
D25B/0379/WEBDún Laoghaire–RathdownLodged 4 Jul 2025Extension
- Granted50 m away
New detached garage with storage area over, total floor area 45.34 m2 together with relocated vehicular…
Somerton Lodge, Rochestown Avenue, Co. Dublin
D03A/0611Dún Laoghaire–RathdownLodged 2 Jan 2004Extension
- Granted60 m away
Improvement of facilities/amenities (paths, playgrounds, pitch improvements, clubhouses)
Sallynoggin Playing Fields, Sallynoggin, Co. Dublin.
PC/07/06Dún Laoghaire–RathdownLodged 3 Apr 2006Infrastructure
- Granted80 m away
Housing Development
Woodpark,, Sallynoggin,, Co. Dublin.
PC/H/02/22Dún Laoghaire–RathdownLodged 16 Mar 2022
- Granted90 m away
Construction of 14 no. new units consisting of 12 x 1 bed and 2 x 2 bed
Sallynoggin Road Upper, Sallynoggin, Co Dublin
PC/H/02/15Dún Laoghaire–RathdownLodged 3 Mar 2015Apartments
- Not exempt — permission needed110 m away
We intent to construct a modular building, which will consist of 4 changing rooms with showers, a toilet…
Sallynoggin Playing Fields, Sallynoggin, Co. Dublin.
REF18825Dún Laoghaire–RathdownLodged 2 Dec 2025Other
- Refused140 m away
Permission is sought for the construction of a single storey extension to the front and side of the existing…
Rochestown Motors, Rochestown Avenue, Dun Laoghaire, Co. Dublin.
D07A/1158Dún Laoghaire–RathdownLodged 13 Aug 2007Commercial
- Withdrawn140 m away
A) Demolition of existing car showroom, workshops, and boundary walls; b) Development of a new car showrooms…
Rochestown Motors, Rochestown Avenue, Dun Laoghaire, Co. Dublin.
D05A/0710Dún Laoghaire–RathdownLodged 16 Sept 2005Commercial
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 attic conversion and dormer window to the rear; internal alterations for new attic stairs…
17, Somerton, Rochestown Avenue, Dun Laoghaire, Dublin, A96X3P0
D25B/0379/WEBDún Laoghaire–RathdownLodged 4 Jul 2025
- GrantedExtension
Permission is sought for works to existing mid-terraced 2 storey dwelling as follows: Attic conversion…
68, Abberley, Killiney, Co. Dublin
D12B/0265Dún Laoghaire–RathdownLodged 8 Aug 2012
- GrantedExtension
Permission is sought for the Construction of a non-habitable attic conversion, construction of a rear facing…
30 Shandon Park, Phibsborough, Dublin 7, D07 HXH0
WEB1213/26Dublin CityLodged 3 Feb 2026
- GrantedExtension
Permission is sought for a new single storey extension to rear, first floor extension with Attic Room above…
92, Braemor Road, Churchtown, Dublin 14
D08B/0365Dún Laoghaire–RathdownLodged 14 May 2008
- GrantedExtension
Permission to construct a first floor rear extension, convert the attic to living accommodation, including…
Hazeldene , Boreenmanna Road , Cork
1938361Cork CityLodged 24 Apr 2019
- GrantedExtension
Permission for a proposed attic conversion including a new dormer window to the rear, a part two storey and…
15 Sandyford Hall Grove, Sandyford, Dublin 18
D19B/0092Dún Laoghaire–RathdownLodged 27 Aug 2019
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