South Dublin County Council · SD26B/0156W
9 Knocklyon Close, Knocklyon, Dublin, D16 TP94
Approved in Jul 2026. No sign of building yet.
- 3 Apr 2026Received
- 28 May 2026Approved
- 8 Jul 2026Final approval
- 7 Jul 2031Approval runs out
- Status
- Approved
- Decision
- Approved · 28 May 2026
- Council
- South Dublin County Council
- Type
- Permission
- Site
- 264 m²
What’s proposed
In plain English
Changes to a previously approved first floor extension
The applicant wants to make amendments to a first floor extension that already has planning permission.
- Relates to planning permission reference SD21B/0021
- Adds 4.4 square metres of floor area
Written by AI from the council’s description
An AI model rewrote the council’s description below in everyday words on 9 Oct 2026. It was told to use only that text, and every number it wrote was checked against it. It says nothing about whether the application will be approved. The council’s wording and planning file are the record.
The council’s description
Amendmetns to the first floor extension previously granted planning permission Reg Ref: SD21B/0021
Planning details
- Reference
- SD26B/0156W
- Local authority
- South Dublin County Council
- Status
- Granted · register status “Final Grant”
- Received
- 3 Apr 2026
- Observations close
- 8 May 2026 (closed 177 days ago)
- Decision due
- 28 May 2026 · decided 28 May 2026
- Decision
- Grant permission on 28 May 2026
- Site area
- 264 m² from the mapped boundary, not the council's figure
Nearby 18 · 500 m · 12 months
Distance
Time
- Open23 Knocklyon Grove, Knocklyon, Dublin 16, D16 Y443
- Open23 Delaford Ave, Knocklyon, Dublin 16, D16K3E5
- Awaiting decision65, Knockaire, Knocklyon, Dublin 16, D16 FW95
- Granted75, Idrone Park, Knocklyon, Dublin 16, D16 E7T1
- Awaiting decision5/5A, Knocklyon Cottages, Knocklyon Road, Knocklyon, Dublin 16
- GrantedIona Pastoral Community Centre, Idrone Avenue, Dublin, D16 T299
- Awaiting decision22 Coolamber Park, Knocklyon, Dublin 16, D16 A0P0
- Awaiting decisionSDCC Lands @28 Locations
Show all 18
- GrantedPairc Ui Mhurchu, Firhouse Road, Dublin 16, D16 A2F8
- Granted18 Idrone Park, Knocklyon, Dublin 16, D16 PX88
- Granted2 Mount Alton Court, Knocklyon, Dublin 16, D16 HW83
- GrantedVista Montana, Firhouse Road, Knocklyon, Dublin 16.
- Granted27, Green Acre Court, Dublin 16, D16 YF53
- Granted30, Idrone Drive, Ballyroan, Dublin 16, D16 T9W7
- Commenced16 Idrone Park, Knocklyon, Dublin 16, D16PX29
- Appeal decided15, Knocklyon Park, Templeogue, Dublin 16, D16 N1W8
- Commenced2, Knocklyon Avenue, Knocklyon, Dublin 16, D16 H3K8
- Commenced20, Coolamber Park, Knocklyon, Dublin 16, D16E4W0
- GrantedThe Beeches, Firhouse Road, Knocklyon, Dublin 16, D16N4T8
- WithdrawnThe Beeches, Firhouse Road, Knocklyon, Dublin 16, D16 N4T8
- Granted67, Coolamber Park, Dublin 16, D15 K753
- Granted19, Idrone Drive, Dublin 16, D16X6F8
- Appeal decided32, Knocklyon Heights, Knocklyon, Dublin 16, D16P2K0
- Granted27 Green Acre Court, Dublin 16, Co. Dublin, D16YF53
- Granted65, Cremorne, Knocklyon, Dublin 16, D16 A8P3.
- GrantedRear of 5/5A Knocklyon Cottages, Knockylon Road, Knocklyon, Dublin 16
- Commenced5a, Knocklyon Ave, Knocklyon, DUBLIN 16
- Granted13, Green Acre Court, Knocklyon, Dublin 16, D16 VK03
- Commenced22, Coolamber Park, Knocklyon, Dublin 16, D16 A0P0
- Granted38 Coolamber Park, Knocklyon, Dublin 16, D16 Y9F2
- Granted32, Idrone Drive, Knocklyon, Dublin 16, D16P9T3
- Granted23, Delaford Lawn, Knocklyon, Dublin 16
- Commenced16, Delaford Dr, Knocklyon, Dublin 16, D16 K7Y3
- Granted9, Knocklyon Avenue, Templeogue, Dublin 16, D16X4CO
- Commenced15, Knocklyon Park, Templeogue, Dublin 16, D16 N1W8.
- Appeal decided17 Coolamber Park, Knocklyon, Dublin 16, D16 N7Y8
- Awaiting decisionKnocklyon to Ballyboden Active and Sustainable Travel Scheme
- GrantedKnocklyon Shopping Centre, Knocklyon Road, Dublin 16, D16 W2V0
- Refused5/5A, Knocklyon Cottages, Knocklyon Road, Knocklyon, Dublin 16
- GrantedPairc Uí Mhurchu, Firhouse Road, Dublin 16, D16 A2F8
- Commenced18, Delaford Grove, Dublin 16
- Commenced2, Greenacres Lodge, Dublin 16, D16 F642
- Granted25a Knockaire, Dublin 16
- Granted5, Knocklyon Avenue, Knocklyon, Dublin 16
- Commenced65, Cremorne, Knocklyon, Dublin 16, D16 A8P3.
- Granted81, Idrone Drive, Knocklyon, Dublin 16, D16W0C6
- Granted54, Knocklyon Green, Knocklyon, Dublin 16
- Commenced30 Idrone Drive, Knocklyon, Dublin 16.
- Withdrawn16 Knocklyon Avenue, Knocklyon, Dublin 16.
- GrantedKnocklyon Shopping Centre, Knocklyon Road, Dublin 16.
- CommencedUnit 4, Pineview Business Park, Firhouse Road, Dublin 16, D16 YR22
- Withdrawn54 KNOCKLYON GREEN, DUBLIN 16
- Commenced2, Knocklyon Heights, Dublin 16
- Granted55, Westbourne Lodge, Dublin 16
- Granted1, Knocklyon Green, Knocklyon, Dublin 16
- GrantedVista Montana, Firhouse Road, Knocklyon, Dublin 16.
- Commenced3A, Knocklyon Cottages, Knocklyon Road, Dublin 16
- Commenced102, Coolamber Park, Knocklyon, Dublin 16
- Commenced5, Delaford Drive, Knocklyon, Dublin 16
- Withdrawn3A, Knocklyon Cottages, Knocklyon Road, Dublin 16
- Granted150, Coolamber Park, Dublin 16
- Commenced23, Knocklyon Close, Dublin, 16.
- Appeal decidedKnocklyon Road, Knocklyon, Dublin 16.
- Granted1, Knocklyon Green, Templeogue, Dublin 16
- WithdrawnKnocklyon Shopping Centre, Knocklyon Road, Dublin 16.
- Granted2, Beverly Avenue, Scholarstown Wood,, Dublin 16, D16KP52
- Awaiting decisionDodder Greenway, Firhouse Road/Butterfield Avenue
- Granted67, Coolamber Park, Knocklyon, Dublin 16
- Commenced38, Coolamber Park, Dublin 16
- Commenced5, Delaford Lawn, Dublin 16
- Commenced56, Knocklyon Green, Dublin 16
- Granted3, Idrone Avenue, Dublin 16
- GrantedPineview Business Park, Firhouse Road, Knocklyon, Dublin 16
- Refused23, Knocklyon Close, Knocklyon, Dublin 16.
- Commenced9, Knocklyon Avenue, Templeogue, Dublin 16, D16X4C0
- Commenced1, Knocklyon Close, Knocklyon, Dublin 16 D16KR79
- Granted54 Knocklyon Green Knocklyon Dublin 16
- Commenced7, Idrone Close, Dublin 16
- Commenced3, Knocklyon Avenue, Dublin 16
- Withdrawn7, Idrone Close, Dublin 16
- Commenced17, Idrone Close, Dublin 16
- Granted36, Beverly Avenue, Dublin 16
Homes nearby
- For sale63 Idrone Drive, Knocklyon, Dublin 16, D16 Y8C6
- For sale10 Knocklyon Park, Templeogue, Dublin 16, D16 N5H9
- For sale5 Delaford Avenue, Knocklyon, Dublin 16, D16 Y3V2
- For sale11 Knockaire, Knocklyon, Dublin 16, D16 EE97
- For sale12 Knockfield Manor, Knocklyon Road, Knocklyon, Dublin 16, D16 Y6E4
- For sale2 Homeville Court, Knocklyon, Dublin 16, D16 Y276
Development land nearby
- Permitted, not started · 55 homes granted 02 Jun 2026, expires 02 Jun 2031 — Scholarstown House (0.8 km)
- Permitted, not started · 100 homes granted 10 Aug 2026, expires 09 Aug 2031 — 2 Firhouse Road and Former Morton's The Firhouse Inn (0.8 km)
- Residential land off Mount Alton Court, Knocklyon, Dublin 16 (0.2 km)
- Residential land off Mount Alton Court, Knocklyon, Dublin 16 (0.2 km)
- Residential land off Mount Alton Court, Knocklyon, Dublin 16 (0.3 km)
Zoning
R2 — Existing residential
An established residential area. The objective is to protect existing residential amenity as well as to provide housing — which is the objective a neighbour's objection to an overbearing extension is usually argued under.
Where this comes from
National planning feed (NPAD), fetched 11 Sept 2026, 18:51.
Source: National Planning Application Database · fetched 11 Sept 2026, 18:51
| Source | Licence | Fetched | Link |
|---|---|---|---|
| National Planning Application Database | CC BY 4.0 | 11 Sept 2026, 18:51 | open |
Summary
SD26B/0156W is a planning application to South Dublin County Council for amendmetns to the first floor extension previously granted planning permission Reg Ref, received on 3 Apr 2026; permission was granted on 28 May 2026.