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South Dublin County Council · SD18A/0134

Grange Castle Business Park, Clondalkin, Dublin 22

Approved, built and signed off.

  1. 30 Jul 2018Received
  2. 24 Sept 2018Approved
  3. 22 Oct 2018Appealed
  4. 18 Apr 2019Appeal: Approved with conditions
  5. 25 Jun 2019Building started
  6. 28 Jun 2021Signed off
Status
Building started
Decision
Approved · 24 Sept 2018
Council
South Dublin County Council
Type
Permission
Site
9.18 ha
Appeal
ACP 302813 · Approved with conditions

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What’s proposed

Demolition of the existing single storey house of 'Erganagh' and the construction of a two storey data centre and delivery bays with associated three storey office block and services that will have a gross floor area of 35,426sq.m on an overall site of 9.2 hectares. The two storey data centre facility and delivery bay (32,419sq.m) will be separated into two adjoined blocks over two floors with a single data hall on each floor of each data centre with service and technical space around each data hall (4 data halls overall) with a two storey delivery bay attached to the east of the data centre block. A three storey office block and delivery bay (2,882sq.m) is attached to the west of the data centre block. The data centre will be served by services and plant to the north of the data centre blocks that will include 32 standby generators with 2 associated flues per generator (64 in total) and grouped into 16 towers of flour flues each (each 20m high). There are proposed to be 32 acoustically attenuated chillers located on the upper level plant gantries to the north of the data hall blocks (eight on each gantry). The development will also include a new substation with associated transformer yard and single storey transformer building (125sq.m) that will be located to the northeast of the site. The development will be accessed from the Grange Castle South Access Road from the north via the Baldonnel Road and will also include ancillary site development works, including 2 attenuation ponds, to connect to existing Grange Castle infrastructural services as well as fencing, signage, services road, entrance gate, 70 car parking spaces including 3 disabled car parking spaces, and 30 sheltered bicycle parking spaces. The development will be enclosed with landscaping to all frontages including a wetland to the west all on a site (9.2ha) located within lands in the Grange Castle Business Park South and the residential properties of Erganagh, Kent Cottage and Weston Lodge on land with 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. An Environmental Impact Assessment Report (EIAR) has been submitted with this application

Planning details

Reference
SD18A/0134
Local authority
South Dublin County Council
Status
Commenced · register status “Officer Allocation”
Received
30 Jul 2018
Observations close
3 Sept 2018 (closed 2951 days ago)
Decision due
24 Sept 2018 · decided 24 Sept 2018
Decision
Grant permission on 24 Sept 2018
Proposed development
Demolition of the existing single storey house of 'Erganagh' and the construction of a two storey data centre and delivery bays with associated three storey office block and services that will have a gross floor area of 35,426sq.m on an overall site of 9.2 hectares. The two storey data centre facility and delivery bay (32,419sq.m) will be separated into two adjoined blocks over two floors with a single data hall on each floor of each data centre with service and technical space around each data hall (4 data halls overall) with a two storey delivery bay attached to the east of the data centre block. A three storey office block and delivery bay (2,882sq.m) is attached to the west of the data centre block. The data centre will be served by services and plant to the north of the data centre blocks that will include 32 standby generators with 2 associated flues per generator (64 in total) and grouped into 16 towers of flour flues each (each 20m high). There are proposed to be 32 acoustically attenuated chillers located on the upper level plant gantries to the north of the data hall blocks (eight on each gantry). The development will also include a new substation with associated transformer yard and single storey transformer building (125sq.m) that will be located to the northeast of the site. The development will be accessed from the Grange Castle South Access Road from the north via the Baldonnel Road and will also include ancillary site development works, including 2 attenuation ponds, to connect to existing Grange Castle infrastructural services as well as fencing, signage, services road, entrance gate, 70 car parking spaces including 3 disabled car parking spaces, and 30 sheltered bicycle parking spaces. The development will be enclosed with landscaping to all frontages including a wetland to the west all on a site (9.2ha) located within lands in the Grange Castle Business Park South and the residential properties of Erganagh, Kent Cottage and Weston Lodge on land with 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. An Environmental Impact Assessment Report (EIAR) has been submitted with this application
As published by the register.
Site area
9.18 ha from the mapped boundary, not the council's figure
Applicant
CyrusOne Irish Datacentres Holdings Ltd. council register

Nearby 17 · 500 m · 5 years

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Homes nearby

Development land nearby

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Appeal

ACP 302813 · Planning Appeal · decided · Approved with conditions 18 Apr 2019
received by the Commission 22 Oct 2018 · inspector's report · board order

Building started

  • 18 Mar 2020 · Builder told the council work was starting (seven-day notice) SN0005190SD
  • 25 Jun 2019 · Builder told the council work was starting CN0053218SD

Zoning

C2.1 — Economic development and employment

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
    Amazon Data Services Ireland Limited; P1184
  • Radon risk area · 2
    About 1 in 10 homes in this area is likely to have high radon levels; About 1 in 20 homes in this area is likely to have high radon levels
  • Recorded monument · 4
    Concentric enclosure; Enclosure

Where this comes from

National planning feed (NPAD), fetched 11 Sept 2026, 18:51.

Source: npad · fetched 11 Sept 2026, 18:51
SourceLicenceFetchedLink
npadCC-BY-4.011 Sept 2026, 18:51open
Summary

SD18A/0134 is a planning application to South Dublin County Council for demolition of the existing single storey house of 'Erganagh' and the construction of a, received on 30 Jul 2018; permission was granted on 24 Sept 2018.