South Dublin County Council · SD24B/0373
21 Ashton Close, Knocklyon, Dublin 16
Approved in Nov 2024. Building started in 2026.
- 23 Aug 2024Received
- 15 Oct 2024Approved
- 28 Nov 2024Final approval
- 2 Jun 2026Building started
- Status
- Building startedi
- Decision
- Approved · 15 Oct 2024
- Council
- South Dublin County Council
- Type
- Permission
- Site
- 295 m²
What’s proposed
Works to existing 2 storey dwelling, including 1. Demolition of existing single storey garage to side of dwelling and rear single storey extension; 2. Construction of new single storey extension to side and rear of dwelling; 3. 1st floor extension to rear and side of dwelling and all associated site development works
Planning details
- Reference
- SD24B/0373
- Local authority
- South Dublin County Council
- Status
- Commenced · register status “Final Grant”
- Received
- 23 Aug 2024
- Decision due
- 17 Oct 2024 · decided 15 Oct 2024
- Decision
- Grant permission on 15 Oct 2024
- Site area
- 295 m² from the mapped boundary, not the council's figure
Nearby 16 · 500 m · 12 months
Distance
Time
- Awaiting decision65, Knockaire, Knocklyon, Dublin 16, D16 FW95
- Granted75, Idrone Park, Knocklyon, Dublin 16, D16 E7T1
- Awaiting decision60, Elkwood, Ballyroan, Dublin 16, D16A373
- Awaiting decision5/5A, Knocklyon Cottages, Knocklyon Road, Knocklyon, Dublin 16
- Awaiting decision22 Coolamber Park, Knocklyon, Dublin 16, D16 A0P0
- Withdrawn60, Elkwood, Ballyroan, Dublin 16, D16A373
- Granted66, Knockcullen Drive, Knocklyon, Dublin, D16 K0H2
- Awaiting decision29, Scholarstown Park, Scholarstown, Dublin 16, D16 E2T2
Show all 16
- Granted35, Templeroan Avenue, Knocklyon, Dublin 16, D16PW81
- Granted42, Scholarstown Park, Scholarstown, Dublin 16
- Granted19, Templeroan Downs, Templeroan, Dublin 16, D16NX93
- Refused68, Dargle Wood, Dublin 16
- Granted16a, Templeroan Green, Rathfarnham, Dublin 14, D16E8W7
- Granted40, Elkwood, Ballyroan Heights, Dublin 16, D16T8P2.
- Withdrawn40, Elkwood, Ballyroan Heights, Dublin 16, D16T8P2.
- Commenced20, Coolamber Park, Knocklyon, Dublin 16, D16E4W0
- Granted40D, Dargle Wood, Knocklyon, Dublin 16, D16 DP86.
- Granted77 Dargle Wood, Knocklyon, Dublin 16, D16H773
- Commenced29, Templeroan Way, Knocklyon, D16 C8C4
- Granted67, Coolamber Park, Dublin 16, D15 K753
- Granted44, Knockcullen Lawn, Knocklyon, Dublin 16, D16 ND86
- Granted65, Cremorne, Knocklyon, Dublin 16, D16 A8P3.
- GrantedRear of 5/5A Knocklyon Cottages, Knockylon Road, Knocklyon, Dublin 16
- Commenced22, Coolamber Park, Knocklyon, Dublin 16, D16 A0P0
- Granted38 Coolamber Park, Knocklyon, Dublin 16, D16 Y9F2
- Appeal decidedLands at Ballyroan House, Ballyroan Heights, Dublin 16, D16 E8C6
- Granted83, Templeroan Avenue, Dublin 16,
- Granted4, Hersil Green, Knocklyon, Dublin 16, D16 K8K8
- Granted32, Dargle Wood, Knocklyon, Dublin 16, D16 WP96
- Granted55, Templeroan Drive, Knocklyon, Dublin 16
- Commenced17, Ballyroan Heights, Templeogue, Dublin 16, D16 T1H2
- Appeal decided17 Coolamber Park, Knocklyon, Dublin 16, D16 N7Y8
- Awaiting decisionKnocklyon to Ballyboden Active and Sustainable Travel Scheme
- RefusedBallyroan House, Ballyroan Heights, Dublin 16, D16 E8C6
- CommencedSite of approx. 1 ha on lands at (Watson Place), Ballyroan House, Ballyroan Heights, Dublin 16, D16 E8C6.
- GrantedNo 1, Templeroan Downs, Dublin 16, D16AH59
- Granted66, Knockcullen Drive, Knocklyon, Dublin 16, D16 K0H2
- Refused7 Templeroan Downs, Ballyroan, Dublin 16, D16 DX28
- Refused7 Templeroan Downs, Ballyroan, Dublin 16, D16 DX28
- Refused5/5A, Knocklyon Cottages, Knocklyon Road, Knocklyon, Dublin 16
- Commenced34, Dargle Wood, Dublin 16
- Commenced64, Knockcullen Drive, Dublin 16, D16F7Y9
- Granted20, Templeroan Court, Knocklyon, Dublin 16, D16 F6P6
- GrantedApplegreen Service Station, Knocklyon Road, Knocklyon, Dublin 16, D16N5X9
- Granted28, Templeroan Close, Dublin 16
- Granted25a Knockaire, Dublin 16
- Granted33, Templeroan Avenue, Dublin 16
- GrantedSancta Maria College, Ballyroan, Rathfarnham, Dublin 16
- Granted7, Ashton Close, Dublin 16
- GrantedBallyroan House, Ballyroan Heights, Dublin 16
- Commenced65, Cremorne, Knocklyon, Dublin 16, D16 A8P3.
- CommencedBallyroan House, Ballyroan Heights, Dublin 16 (The overall development currently under construction at this site is referred to as 'Watson's Place')
- Commenced1, The Green, Boden Park, Dublin 16
- Commenced65, Knockcullen Drive, Ballyroan, Dublin 16, D16 ET78
- Granted81, Idrone Drive, Knocklyon, Dublin 16, D16W0C6
- Granted55, Templeroan Drive, Knocklyon, Dublin 16
- Commenced6, Knocklyon Cottages, Knocklyon Road, Rathfarnham, Dublin 14
- Commenced85 Lansdowne Park,, Knocklyon Road,, Templeogue,, Dublin 16.
- Commenced144, Dargle Wood, Dublin 16
- Refused1C, Coolamber Park, Knocklyon, Dublin 16, D16E8F1
- Commenced3A, Knocklyon Cottages, Knocklyon Road, Dublin 16
- Commenced102, Coolamber Park, Knocklyon, Dublin 16
- CommencedBallyroan House, Ballyroan Heights, Dublin 16
- Withdrawn3A, Knocklyon Cottages, Knocklyon Road, Dublin 16
- Commenced89, Coolamber Park, Dublin 16
- Granted150, Coolamber Park, Dublin 16
- Granted28, Templeroan Meadows, Templeogue, Dublin 16
- Refused6, Knocklyon Cottages, Knocklyon Road, Dublin 16
- Commenced48, Dargle Wood, Knocklyon, Dublin 16
- Granted46, Templeroan Way, Dublin 16
- Granted29 Ballyroan Heights, Rathfarnham, Dublin 16
- Granted67, Coolamber Park, Knocklyon, Dublin 16
- Commenced78, Dargle Wood, Knocklyon Road, Dublin 16
- Commenced38, Coolamber Park, Dublin 16
- Withdrawn46, Templeroan Way, Dublin 16
- Commenced33, Templeroan Grove, Rathfarnham, Dublin 16.
- Granted58, Knockcullen Drive, Dublin 16
- Commenced7, Idrone Close, Dublin 16
- Withdrawn7, Idrone Close, Dublin 16
- Commenced17, Idrone Close, Dublin 16
- Commenced33, Ballyroan Heights, Dublin 16
- Commenced48, Templeroan Way, Knocklyon, Dublin 16
Homes nearby
- For sale22 Ashton Lawn, Knocklyon, Dublin 16, D16 FP97
- For sale70 Ashton Avenue, Knocklyon, Dublin 16, D16 W5F1
- For sale48 Ashton Avenue, Knocklyon, Dublin 16, D16 EC67
- For sale11 Knockaire, Knocklyon, Dublin 16, D16 EE97
- For sale15 Watson Place, Rathfarnham, Dublin 16, D16 A3F8
- For sale29 Ballyroan Heights, Rathfarnham, Dublin 16, D16 Y3F8
Development land nearby
- Permitted, not started · 55 homes granted 02 Jun 2026, expires 02 Jun 2031 — Scholarstown House (0.8 km)
- Permitted, not started · 11 homes granted 24 Oct 2023, expires 24 Oct 2028 — Rookwood (1.0 km)
- Derelict site — 53 Marian Crescent, Rathfarnham, Dublin 16 (0.9 km)
- Public land off Dargle Wood, Knocklyon, Dublin 16 (0.1 km)
- Public land off Knocklyon Cottages, Knocklyon Road, Dublin 16 (0.1 km)
Building started
- 2 Jun 2026 · Builder told the council work was starting (opted out of the finish sign-off) CN0143051SD
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
SD24B/0373 is a planning application to South Dublin County Council for works to existing 2 storey dwelling, including 1. Demolition of existing single storey, received on 23 Aug 2024; permission was granted on 15 Oct 2024.