4, Knocklyon Grove, Templeogue, Dublin 16
Attic conversion with a new dormer roof, rooflights, and front bay windows.
SD21B/0330 · South Dublin County Council · Lodged 3 June 2021
- Reference
- SD21B/0330
- Authority
- South Dublin County Council
- Register status
- Decided
- Type
- Permission
- Received
- 3 June 2021
- Floor area
- 86 m²
Summary
AI-generatedThe project involves replacing the existing roof with a new dormer attic roof to create additional space for a bedroom, bathroom, office, and recreation room, plus adding front bay windows and a porch.
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
Additional attic space containing a bedroom; bathroom; home office; and recreation room by replacing the existing roof with a new dormer attic roof with two dormers to the rear; a triangular roof light to the front and 4 'velux' rooflights to front and 3 to the rear of the existing house. In addition permission is sought to provide 2 bay windows plus a covered porch to the front.
Land-use zoning
What this land is zoned for
“To protect and/or improve residential amenity”
National zoning type: Existing residential
Objective set by the South Dublin 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 1 March 2016.
Notified floor area: 95 m²
2 commencement notices are linked to this development.
Recent sales nearby
within 500 m| Address | Date | Price | Distance |
|---|---|---|---|
| 5 Idrone Park, Knocklyon Wood, Templeogue Dublin 16 | Jun 2025 | €680,000 | 127 m |
| 2 Mount Alton Court, Knocklyon, Dublin 16 | Jul 2025 | €1,225,000 | 132 m |
| 6 Idrone Dr, Knocklyon, Templeogue Dublin 16 | Jul 2025 | €575,000 | 183 m |
| 35 Mount Alton, Knocklyon, Dublin 16 | Feb 2025 | €595,000 | 194 m |
| 2 Idrone Close, Knocklyon, Dublin 16 | Jan 2025 | €800,000 | 230 m |
| 51 Idrone Dr, Knocklyon, Dublin 16not full market price | Mar 2025 | €487,500 | 280 m |
| 5 Garthy Wood, Knocklyon Rd, Templeogue Dublin 16 | Jul 2025 | €382,000 | 285 m |
| Apt 9 Garthy Wood, Knocklyon Road, Dublin 16 | Mar 2026 | €403,000 | 285 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 received3 June 2021
- Decision due28 July 2021
- Decision issued28 July 2021
- Grant issued6 September 2021
In the area
Applications near this site
Other planning applications within about 500 m — what else is being proposed or built nearby.
- InvalidAt this site
Create additional attic space containing a bedroom, bathroom, home office and recreation room by replacing…
4, Knocklyon Grove, Templeogue, Dublin 16
SD21B/0254South DublinLodged 5 May 2021Extension
- GrantedAt this site
Provision of a house to side of existing house
4, Knocklyon Grove, Templeogue, Dublin 16
SD04A/0828South DublinLodged 9 Nov 2004New dwelling
- GrantedAt this site
Construct a detached three bedroom dormer bungalow at side of existing house; provide an additional vehicular…
4, Knocklyon Grove, Templeogue, Dublin 16
SD14A/0202South DublinLodged 5 Dec 2014New dwelling
- GrantedAt this site
Side extension to existing bungalow
4, Knocklyon Grove, Templeogue, Dublin 16
SD10B/0010South DublinLodged 19 Jan 2010Extension
- Granted50 m away
Conversion of the existing garage and construction of a single storey extension to side of existing house to…
3, Knocklyon Grove, Knocklyon, Dublin 16
SD17B/0298South DublinLodged 7 Nov 2017Extension
- Granted60 m away
Domestic, two-storey extension to front/side and garage to side
5, Knocklyon Grove, Knocklyon, Dublin 16
SD02B/0491South DublinLodged 30 Oct 2002Extension
- Invalid60 m away
Single storey extension to front/side and garage to the side
5 Knocklyon Grove, Knocklyon, Dublin 16
SD02B/0439South DublinLodged 25 Sept 2002Extension
- Granted90 m away
The development will consist of an attic conversion and a 2-storey extension at rear including (1) extended…
4, Idrone Park, Knocklyon, Dublin 16
SD04B/0378South DublinLodged 27 Sept 2004Extension
Related developments
Similar applications
Ranked by what these developments actually propose, not by matching words — so you can see how comparable applications were decided.
- InvalidExtension
Create additional attic space containing a bedroom, bathroom, home office and recreation room by replacing…
4, Knocklyon Grove, Templeogue, Dublin 16
SD21B/0254South DublinLodged 5 May 2021
- GrantedExtension
Permission is sought for the conversion of existing attic space including a bedroom, study and bathroom, with…
19, Avondale Road, Glenageary, Co. Dublin.
D10B/0213Dún Laoghaire–RathdownLodged 6 May 2010
- GrantedExtension
Permission is sought for; attic bedroom conversion with dormer roof and window to rear; new windows to attic…
3, The Slopes, Monkstown, Co. Dublin
D10B/0404Dún Laoghaire–RathdownLodged 23 Sept 2010
- GrantedExtension
Planning permission to convert existing attic space into habitable accommodation and new porch roof to front…
111, Seafield Road East, Clontarf, Dublin 3
2475/20Dublin CityLodged 12 Mar 2020
- GrantedExtension
Permission is sought for the conversion of the attic space to bedroom/ bathroom with two dormers to sides,…
5, Mather Road South, Mount Merrion, Co Dublin
D07B/0452Dún Laoghaire–RathdownLodged 13 Aug 2007
- GrantedExtension
Planning permission is sought for alterations/extensions to the existing house comprising an attic conversion…
4, Ratra Park, Dublin 7
3075/21Dublin CityLodged 2 Jul 2021
Community
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