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Google Grange Castle Data Center Campus

Baldonnell / Clondalkin, Dublin, D, IrelandOperating / Stabilized
Capacity
No public figure
Lead participant
Google Ireland Limited
Operator
Last updated
Aug 25, 2026
Most recent public record update

About Google Grange Castle Data Center Campus

Google Grange Castle Data Center Campus — Existing Google Dublin campus with DC1 and DC2 operating phases and a refused DC3 expansion phase under national appeal. Google Grange Castle Data Center Campus is in Baldonnell / Clondalkin, Dublin, D, IE and is a data center campus with operational status. Participants include Google Ireland Limited as operator, EirGrid as grid operator. Development comprises DC1 (operational), DC2 expansion (operational), DC3 proposed expansion (refused). Key milestones include South Dublin County Council refused DC3. (2024-08-22) and Google lodged first-party appeal. (2024-09-18). outside air cooling: Google describes Dublin facility as using outside air for cooling. grid import capacity dc3: Google appeal says import capacity was contracted in 2021; amount undisclosed. Permitting includes planning application sD24A/0164W for DC3 (refused) and planning appeal pL06S.320852 for DC3 (pending overdue).

Capacity

Operating capacityAn operating IT-capacity figure has not been publicly disclosed.

No additional capacity claims are published.

Development

3 phases · 5 milestones
DC1Operational

First operating data center phase.

1 building

DC2 expansionOperational

EUR150 million second data center phase.

1 building

DC3 proposed expansionStatus Not Disclosed

72,400-square-metre proposed facility with eight halls; not operating.

1 building

Jan 1, 2012
Google DC1 opened
Completed
May 8, 2018
Government marked EUR150 million data center expansion
Completed
Jun 1, 2024
Google submitted DC3 planning application
Completed
Aug 22, 2024
South Dublin County Council refused DC3
Completed
Sep 18, 2024
Google lodged first-party appeal
Completed

Infrastructure

Cooling SystemOperational

Google describes Dublin facility as using outside air for cooling.

Electric GridSecured Or Contracted

Google appeal says import capacity was contracted in 2021; amount undisclosed.

Project map

0 of 1 project point mapped
Infrastructure facts
2
Mapped records
1
Capacity figures
0

No map point available

Power & interconnection: 1Cooling & water: 1

Facts & sources

Published claims and their source links.

12 facts
Operations Start
2012
Fact
Investment
€150 million
Fact
Cumulative Data Center Investment
€500 million
Fact
Planning Application
SD24A/0164W / PL06S.320852
Fact
Planning Status
Local refusal; first party appeal pending
Fact
Building Area
72,400 square metres
Fact
Data Hall Count
8 halls
Fact
Site Area
50 acres
Fact
Construction Jobs
800 jobs
Fact
Operational Jobs
50 jobs
Fact
Unmitigated Indirect Emissions
224,250 tonnes CO2 per year
Fact
Cooling Design
Outside air cooling
Fact