15, Knocklyon Park, Templeogue, Dublin 16, D16 N1W8
Modifications to a previously approved permission to add a rear dormer window.
SD26B/0056W · South Dublin County Council · Lodged 11 February 2026
- Reference
- SD26B/0056W
- Authority
- South Dublin County Council
- Register status
- Appealed
- Type
- Permission
- Received
- 11 February 2026
Summary
AI-generatedThe applicant is seeking modifications to a previously granted planning permission for a two-storey semi-detached house. The proposed changes include the construction of a dormer window on the rear pitch of the roof and associated internal layout revisions.
- Storeys
- 2
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
Modifications to a previously granted permission (sd25b/0061w), to include construction of a dormer to the rear pitch of the roof and associated revisions to the internal layout, of the existing two storey semi-detached house.
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.
Recent sales nearby
within 500 m| Address | Date | Price | Distance |
|---|---|---|---|
| 19 Knocklyon Green, Templeogue, Dublin 16 | May 2025 | €830,000 | 79 m |
| 35 Knocklyon Park, Knocklyon Woods, Templeogue Dublin 16 | Jul 2025 | €687,000 | 91 m |
| 16 Green Acre Court, Firhouse Rd, Templeogue Dublin 16 | Mar 2025 | €595,000 | 152 m |
| 12 Delaford Park, Dublin 16, Dublin | Nov 2025 | €720,000 | 157 m |
| 60 Knocklyon Green, Templeogue, Dublin 16 | Apr 2026 | €650,000 | 160 m |
| 69 Westbourne Lodge, Templeogue, Dublin 16 | Dec 2025 | €665,000 | 163 m |
| 76 Westbourne Lodge, Templeogue, Dublin 16 | Oct 2025 | €608,000 | 186 m |
| 87 Westbourne Lodge, Templeogue, Dublin 16not full market price | Mar 2025 | €500,000 | 211 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 received11 February 2026
- Decision due7 April 2026
- Decision issued1 April 2026
- Appeal submitted28 April 2026
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 extension to front, rear and side of existing two storey semi-detached house, to include…
15, Knocklyon Park, Templeogue, Dublin 16, D16 N1W8.
SD25B/0061WSouth DublinLodged 13 Feb 2025Extension
- GrantedAt this site
Single storey extension to rear to provide kitchen / dining with pitched roof over with 5 velux rooflights…
17, Knocklyon Park, Dublin 16
SD08B/0274South DublinLodged 21 Apr 2008Extension
- GrantedAt this site
Single storey extension to living room to front, extended porch and pitched roof over all and across front of…
17, Knocklyon Park, Knocklyon, Dublin 16
SD09B/0181South DublinLodged 12 May 2009Extension
- GrantedAt this site
Single storey extension at rear
13, Knocklyon Park, Dublin 16
SD04B/0197South DublinLodged 26 Apr 2004Extension
- Granted40 m away
Extension of living room to front with pitched roof over; part conversion of garage to W.C and shower room;…
16, Knocklyon Park, Dublin 16
SD11B/0277South DublinLodged 25 Jul 2011Extension
- Granted50 m away
Replacing existing porch with new single storey pitched roof hallway extension to front (3.43sq.m) including…
25, Knocklyon Park, Knocklyon, Dublin 16
SD17B/0170South DublinLodged 4 May 2017Extension
- Granted50 m away
Detached double storey dwelling house at side
18 Knocklyon Park,Templeogue, Dublin 6.
S99A/0789South DublinLodged 6 Jun 2000New dwelling
- Granted50 m away
Two storey dwelling house and alterations to front porch and garage of existing house (Outline Permission…
18 Knocklyon Park, Templeogue, Dublin 16.
SD02A/0206South DublinLodged 23 Apr 2002New dwelling
Related developments
Similar applications
Ranked by what these developments actually propose, not by matching words — so you can see how comparable applications were decided.
- GrantedAlterations
New dormer at attic level to rear of semi-detached house, to replace dormer as granted as part of pervious…
37, Crannagh Park, Rathfarnham, Dublin 14
SD07B/0490South DublinLodged 5 Jun 2007
- GrantedAlterations
Planning permission sought for development which will consist of alterations to existing planning permission…
72, Weston Park, Dundrum, Dublin 14
D09A/0866Dún Laoghaire–RathdownLodged 3 Dec 2009
- GrantedExtension
Planning permission is sought for the construction of 1 no. new dormer window to the rear slope of the…
49, Upper Beechwood Avenue, Dublin 6, D06 H1F3
3553/19Dublin CityLodged 22 Jul 2019
- InvalidExtension
Planning permission is sought for alterations and first floor dormer extension (12.4 m2) to rear of…
54 Forest Dale, Rivervalley, Swords, Co. Dublin, K67 P5N2
F24A/0067FingalLodged 1 Feb 2024
- GrantedExtension
Permission is sought for alterations and first floor dormer extension (12.4 m2) to rear of semi-detached…
54 Forest Dale, Rivervalley, Swords, Co. Dublin, K67 P5N2
F24A/0092FingalLodged 9 Feb 2024
- InvalidExtension
Amendments to the previously approved application (SD24B/0302) consisting of an extension of the single…
60, Knocklyon Road, Templeogue, Dublin, D16 XE42
SD25B/0403WSouth DublinLodged 18 Jun 2025
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