4, Knocklyon Heights, Knocklyon, Dublin 16
A storey and a half side extension for a sitting room and home office.
SD21B/0079 · South Dublin County Council · Lodged 10 June 2021
- Reference
- SD21B/0079
- Authority
- South Dublin County Council
- Register status
- Appealed
- Type
- Permission
- Received
- 10 June 2021
- Floor area
- 68.78 m²
Summary
AI-generatedPlanning permission is sought for a storey and a half extension to the side of the house. The extension will comprise a ground-level sitting room and a mezzanine-level home office, including internal modifications.
- 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
A storey and a half extension to the side comprising of a sitting room at ground level and home office at mezzanine level including internal modification works.
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 |
|---|---|---|---|
| Apt 5 Prospect Lodge, Knocklyn Road, Dublin 16 | Jun 2025 | €330,000 | 141 m |
| 38 Knockfield Manor, Knocklyon, Dublin 16 | Oct 2025 | €975,000 | 167 m |
| 35 Mount Alton, Knocklyon, Dublin 16 | Feb 2025 | €595,000 | 187 m |
| 2 Knocklyon Ave, Knocklyon Woods, Dublin 16 | Dec 2025 | €881,000 | 227 m |
| 4 Knocklyon Avenue, Templeogue, Dublin 16 | May 2025 | €670,000 | 235 m |
| 18 Delaford Dr, Knocklyon, Dublin 16 | Jul 2026 | €655,000 | 241 m |
| Hillside, Old Knocklyon Rd, Knocklyon Dublin 16 | Apr 2025 | €630,000 | 250 m |
| 2 Mount Alton Court, Knocklyon, Dublin 16 | Jul 2025 | €1,225,000 | 280 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 received10 June 2021
- Further information requested13 April 2021
- Further information received10 June 2021
- Decision due7 July 2021
- Decision issued7 July 2021
- Appeal submitted3 August 2021
- Appeal decided17 January 2022
- Permission expiry3 February 2022
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
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
- InvalidAt this site
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
- RefusedAt this site
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
- Granted30 m away
Retention of a single storey 38.2sq.m. extension to the rear of the existing property with associated minor…
6, Knocklyon Heights, Templeogue, Dublin 16
SD13B/0316South DublinLodged 18 Dec 2013Retention
- Granted30 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
- Granted40 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
- Granted50 m away
First floor extended bedroom and new ensuite bathroom with pitched roof to the side of existing dwelling
5 Knocklyon Heights, Dublin 16
SD15B/0164South DublinLodged 14 May 2015Extension
- Granted50 m away
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
Related developments
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Community
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