Townlands within Grange Castle South Business Park, Baldonnel, Dublin 22
Approved in May 2026.
- 1 Apr 2026Received
- 26 May 2026Approved
- Status
- Approved
- Decision
- Approved extension of duration of permission · 26 May 2026
- Council
- South Dublin County Council
- Type
- Extension Of Duration Of Permission
- Site
- 9.73 ha
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Amendments and modifications to the permitted data centre development granted under Reg. Ref. SD18A/0134 - ABP Ref. ABP-302813-18 and the temporary substation permission granted under SD19A/0300 to include: Demolition of the two storey dwelling of Weston House; single storey dwelling and outbuildings/ stables of Weston Lodge; and the single storey dwelling and converted garage of Kent Cottage. Retention of sprinkler tank and pump house to the south-west of Building A Data Centre to replace 4 sprinkler tanks; Retention of 40kW(p) PV panels on the roof of Building A Data Centre; Retention of revised size of northern attenuation pond and loss of permitted landscaping to its south; Retention of ramped access to rear of temporary substation permitted under SD19A/0300; Retention of revised flue arrangement for Building A Data Centre from 2 associated flues per generator to 1 associated flue per generator (16 in total) and grouped into 8 towers of two flues each (each 20m high); Retention of revised position of security fence to north, west and south of Building A Data Centre; and retention and modifications of landscape berm along Baldonnel Road and to east of Weston House. Development will consist of new works to include: Modifications of permitted vehicular entrance to the data centre to include a new single storey guard house (37sq.m) and two internal entrance gates; Modification to car parking so that the permitted entrance to the parking area from the east is closed off; Modifications of flue arrangement for Building B Data Centre from 2 associated flues per generator to 1 associated flue per generator (16 in total) and grouped into 8 towers of two flues each (each 20m high); Modifications to permitted landscape scheme to north and south of Building A Data Centre; Removal of roadside entrance to Erganagh House (demolished), Kent Cottage, and the former scaffolding yard; and removal of roadside entrance to Weston House and its replacement with a new agricultural gate and fence to be erected to facilitate access for maintenance and security purposes only all on a site of 9.7Ha located within lands in the Grange Castle South Business Park and the residential properties of Weston House, Kent Cottage and Weston Lodge as well as the former scaffolding yard on land within the townlands of Aungierstown and Ballybane; Ballybane; and Milltown and bounding Baldonnel Road to the west and south and Grange Castle South access road to the north, Baldonnel, Dublin 22
Planning details
- Reference
- SD20A/0295/EP
- Local authority
- South Dublin County Council
- Status
- Granted · register status “Decision”
- Received
- 1 Apr 2026
- Observations close
- 7 May 2026 (closed 160 days ago)
- Decision due
- 26 May 2026 · decided 26 May 2026
- Decision
- Grant extension of duration of permission on 26 May 2026
- Site area
- 9.73 ha from the mapped boundary, not the council's figure
- Applicant
- CyrusOne Irish Datacentres Holdings Ltd. council register
Nearby 16 · 500 m · 5 years
- GrantedCastlebagot, Aylmer Road, Dublin 22
- GrantedGrange Castle Business Park, Nangor Road, Clondalkin, Dublin 22
- GrantedLands located at Castlebaggot, in the townland of Kilmactalway, Newcastle, Co. Dublin
- CommencedA site within the townlands of Miltown, Clutterland & Kilmactalway, on and adjacent Peamount Road (R120, and Old Nangor Road Newcastle, Co. Dublin.
- CommencedLands at Castlebaggot, in the townland of Kilmactalway, Newcastle, Co. Dublin.
- GrantedMicrosoft Campus, Grange Castle Business Park, Nangor Road, Clondalkin, Dublin 22, D22 F1W8
- WithdrawnMicrosoft Campus, Grange Castle Business Park, Nangor Road, Clondalkin, Dublin 22, D22 F1W8
- Appeal decidedGrange Castle Business Park South and Profile Park,, Baldonnell, Dublin, D22 X602
Show all 16
- GrantedWithin the townlands of Kilmactawlay and Milltown, Newcastle, Co. Dublin
- CommencedMicrosoft, Grange Castle Business Park, Nangor Road, Clondalkin, Dublin 22.
- GrantedGrange Castle Business Park, Clondalkin, Dublin 22
- RefusedGrange Castle Business Park, Clondalkin, Dublin 22
- GrantedGrange Castle Business Park, Nangor Road, Clondalkin, Dublin 22
- WithdrawnGrange Castle Business Park, Nangor Road, Clondalkin, Dublin 22
- GrantedDublin Google Data Centre, Grange Castle Business Park South, 22, Baldonnel Road, Dublin 22
- RefusedTownlands of Aungierstown & Ballybane, lying at the entrance of the existing facility in, Newcastle, Clondalkin, Dublin 22.
Homes nearby
Development land nearby
From Buildable, our sister site for development land in Dublin.
Zoning
Zoned for employment uses. Housing is not the intended use here.
Protections nearby 250 m
Flood area nearby (OPW maps). floodinfo.ie ↗
- EPA-licensed facility · 3
- Recorded monument · 4
Where this comes from
National planning feed (NPAD), fetched 14 Oct 2026, 01:45.
Source: npad · fetched 14 Oct 2026, 01:45
| Source | Licence | Fetched | Link |
|---|---|---|---|
| npad | CC-BY-4.0 | 14 Oct 2026, 01:45 | open |
Summary
SD20A/0295/EP is a planning application to South Dublin County Council for amendments and modifications to the permitted data centre development granted under Reg., received on 1 Apr 2026; permission was granted on 26 May 2026.