5 Knocklyon Heights, Dublin 16
First-floor side extension to a house in Dublin 16 to add a bedroom and ensuite.
SD15B/0164 · South Dublin County Council · Lodged 14 May 2015
- Reference
- SD15B/0164
- Authority
- South Dublin County Council
- Register status
- Decided
- Type
- Permission
- Received
- 14 May 2015
- Floor area
- 6 m²
Summary
AI-generatedPlanning permission is sought for a first-floor extended bedroom and a new ensuite bathroom to the side of an existing dwelling. The extension will feature a pitched roof.
- 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
First floor extended bedroom and new ensuite bathroom with pitched roof to the side of existing dwelling.
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 16 September 2015.
Recent sales nearby
within 500 m| Address | Date | Price | Distance |
|---|---|---|---|
| Apt 5 Prospect Lodge, Knocklyn Road, Dublin 16 | Jun 2025 | €330,000 | 188 m |
| 18 Delaford Dr, Knocklyon, Dublin 16 | Jul 2026 | €655,000 | 192 m |
| 2 Knocklyon Ave, Knocklyon Woods, Dublin 16 | Dec 2025 | €881,000 | 194 m |
| 35 Mount Alton, Knocklyon, Dublin 16 | Feb 2025 | €595,000 | 198 m |
| 4 Knocklyon Avenue, Templeogue, Dublin 16 | May 2025 | €670,000 | 204 m |
| 38 Knockfield Manor, Knocklyon, Dublin 16 | Oct 2025 | €975,000 | 218 m |
| Hillside, Old Knocklyon Rd, Knocklyon Dublin 16 | Apr 2025 | €630,000 | 246 m |
| 6 Taoibh Na Coille, Ballycullen Rd, Knocklyon Dublin 16 | May 2025 | €626,000 | 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 received14 May 2015
- Decision due8 July 2015
- Decision issued7 July 2015
- Grant issued17 August 2015
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
Conversion of existing garage with new pitched roof and new rear extension to dwelling house
3 Knocklyon Heights, Knocklyon, Dublin 16.
S00B/0331South DublinLodged 22 May 2000Extension
- Granted50 m away
3 no dormer windows to western side of elevation of dwelling, all finishes to match existing
4, Knocklyon Heights, Knocklyon, Dublin 16
SD05B/0438South DublinLodged 30 Jun 2005Alterations
- Granted50 m away
A storey and a half extension to the side comprising of a sitting room at ground level and home office at…
4, Knocklyon Heights, Knocklyon, Dublin 16
SD21B/0079South DublinLodged 10 Jun 2021Extension
- Granted60 m away
Construction of a new detached two storey four bedroom dwelling house and ancillary works, with alterations…
2, Knocklyon Heights, Dublin 16
SD23A/0117South DublinLodged 1 Dec 2023New dwelling
- Invalid60 m away
Two bedroom, two storey dormer detached dwelling to rear of existing dwelling: 2 dormer windows one to front…
4, Knocklyon Heights, Knocklyon, Dublin 16
SD05A/0678South DublinLodged 9 Aug 2005New dwelling
- Refused60 m away
2 bedroom, 2 storey dormer detached dwelling to rear of existing dwellin; with 2 no. dormer windows- one to…
4, Knocklyon Heights, Knocklyon, Dublin 16
SD05A/0840South DublinLodged 12 Oct 2005New dwelling
- Granted60 m away
Demolition of single storey garage to the side of existing house, and construction of a 2 storey detached…
30, Knocklyon Heights, Templeogue, Dublin 16
SD08A/0221South DublinLodged 12 Jun 2008New dwelling
- Refused70 m away
The provision of 4 no. 5 bedroom 2.5 storey semi-detached houses and associated car parking, private open…
Knocklyon Road, Knocklyon, Dublin 16.
SD22A/0444South DublinLodged 24 Nov 2022Housing estate
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
First floor bedroom extension over existing single storey area to the front, side and rear and a pitched roof…
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D04B/0273Dún Laoghaire–RathdownLodged 8 Apr 2004
- GrantedExtension
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SD06B/0608South DublinLodged 9 Aug 2006
- GrantedExtension
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D10B/0450Dún Laoghaire–RathdownLodged 4 Nov 2010
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SD21B/0640South DublinLodged 20 Dec 2021
- GrantedExtension
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SD19B/0136South DublinLodged 3 Apr 2019
- Awaiting decisionExtension
Flat roof first floor extension to side and rear comprising of the enlargement of existing bedroom and new…
6, Fernhill Road, Manor Estate, Dublin 12
SD26B/0319WSouth DublinLodged 29 Jun 2026
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