Data Center Atlas
Data4 Hanau campus
Under construction
Germany · 1 project · Last reported
Summary
Data4's first German campus, on a former military base in the Großauheim district of Hanau, about 30 minutes from central Frankfurt. Data4, owned by Brookfield, plans 180 MW of power capacity for cloud and AI customers and in September 2025 doubled its planned investment from EUR 1 billion to more than EUR 2 billion when it laid the foundations. The plan includes a combined heat and power plant, a substation, decarbonised energy and waste heat for local district heating. Trade press described the campus as under construction in March 2026; no operating date has been published.
Source record as of 2026-03-11 · Details and sources
Location
The interactive map needs JavaScript. Display anchor: 50.10000, 8.95000 (Point locator, WGS 84).
View location: OpenStreetMap · Google Maps · Bing aerial · Copernicus Browser
Town or locality reference only; the facility position is not established.
Projects (1)
Data4 Hanau campus
Under construction last observed as of · Reported status
Location: Hanau (Großauheim), Main-Kinzig-Kreis, Hesse, DE. Centroid of the Großauheim district of Hanau from its Wikipedia article. Data4 places the campus on the former Großauheim military base but no cited source gives coordinates for the site. Data4; BeBeez International (republishing DCD); Wikipedia
Use: Cloud, Ai unspecified, Colocation
Capacity, investment and other figures
| Measure | Value | Scope | As of | Notes | Sources |
|---|---|---|---|---|---|
| Power capacity | 180 MW | Planned · Campus · Unspecified | 2025-09-15 | Data4; BeBeez International (republishing DCD); Capacity | |
| Investment | more than 2,000,000,000 EUR | Announced · Campus | 2025-09-15 | Data4's release headline calls this the campus investment, doubled from EUR 1 billion to EUR 2 billion; the body says planned investment for its German location rose to over EUR 2 billion. Trade press gives EUR 2 billion (Capacity) or up to EUR 2 billion (DCD via BeBeez). | Data4 |
| Land area | 25 hectares | Acquired · Campus | 2025-09-15 | Data4's own figure. Trade press reports 25 acres instead. | Data4 |
| Land area | 25 acres | Reported · Campus | 2026-03-11 | Trade press figure, which conflicts with Data4's 25 hectares. | BeBeez International (republishing DCD); Capacity |
Companies and organizations
| Name | Role | Notes | Sources |
|---|---|---|---|
| Data4 | Developer | Data4; BeBeez International (republishing DCD) | |
| Data4 | Operator | Data4 says it finances, designs, builds and operates its own data centers. | Data4 |
| Data4 | Owner | Acquired the site. | Data4 |
| Brookfield | Investor | Owner of Data4, per trade press. | BeBeez International (republishing DCD); Capacity |
Timeline
| Date | Event | Actual or planned | Notes | Sources |
|---|---|---|---|---|
| 2023 | Site acquired | Actual | Trade press gives 2023; Data4's September 2025 release says it bought the site 18 months earlier, which would point to early 2024. | BeBeez International (republishing DCD); Capacity |
| 2025-09-15 | Construction started | Actual | Foundation-laying ceremony attended by Hesse's digital minister and Hanau's mayor. | Data4; BeBeez International (republishing DCD) |
Power supply
| Type | Description | Sources |
|---|---|---|
| Other | Data4 plans an on-site combined heat and power plant (fuel not stated) and a substation, and says the campus will run on 100% decarbonised energy; waste heat is to serve local district heating. | Data4; Capacity |
Data4's release names no tenants and gives no phase schedule or operating date. Land area sources conflict (25 hectares from Data4, 25 acres from trade press), so both are kept.
Sources for these details
- Data4 lays the foundations on its first mega campus in Germany: a new gateway to AI, Cloud and Digital Sovereignty — Data4; 2025-09-15
- Data4 breaks ground on data center project in Hanau, Germany — BeBeez International (republishing DCD); 2025-09-17
- Data centre of the month: Data4’s site in Hanau, Germany — Capacity; 2026-03-11
- Großauheim — Wikipedia; publication date not stated · Archived source
The RP Darmstadt first partial permit of 17 June 2026 (notified 28 July 2026) for the emergency-generator plant of modules M1 to M4 identifies the campus exactly: Depotstraße, 63457 Hanau, Gemarkung Großauheim Flurstücke 279/2, 279/29 and 319/2, six planned buildings (M1 to M6), and a building application BN-2023-86 for M1 to M4. It conditions generator works on the data-centre building permit being granted. Identity evidence only: status, location and capacity are unchanged. evidence
Regierungspräsidium Darmstadt, Abteilung Umwelt Frankfurt · published 2026-07-28
- Companies
Source and location review
- Status source
- Data centre of the month: Data4’s site in Hanau, Germany evidence row
Capacity · published 2026-03-11 · Trade publication - Locator
- Locality reference only · Compiled location reference · locality evidence
- Source checks
Not reviewed against imagery not_
reviewed
No imagery review is recorded for this project. Its status rests only on the dated authoritative source. · no independent imagery verificationStatus age at review: 230 days before the data update on 2026-10-27
Location details
- Coordinates
- 50.10000, 8.95000
- Geometry licence
- source-terms-not-recorded
- Use scope
- Locality reference only
- Scope class
- locality
- Authority
- Compiled location reference
- Source entity
- Project
- Method
- imported_reference_point
- Derivation
- imported_reference_point
- Precision scope
- Centroid of the Großauheim district of Hanau from its Wikipedia article. Data4 places the campus on the former Großauheim military base but no cited source gives coordinates for the site.
- Horizontal uncertainty
Not reported
The source record provides no measured horizontal uncertainty; original coordinate precision and note are preserved.
- Geometry evidence
- ce89216d
A locator places the site on the map. It is not a building footprint, a construction extent or a surveyed boundary unless the use scope is an official boundary, and even then it is a parcel or permit boundary.
Evidence
Sources are linked, not redistributed; each keeps its own terms. An archived copy is a lookup for the Wayback Machine capture nearest the retrieval date and may be unavailable or differ from what was reviewed. Each hash states what it covers; imported factual records are not publisher-page captures.
| Title | Publisher | Roles | Published | Retrieved | Licence | Attribution | Content hash (SHA-256) |
|---|---|---|---|---|---|---|---|
| Data centre of the month: Data4’s site in Hanau, Germany Archived copy | Capacity Trade publication | Imported: Record, Imported: Status, Metric: Land Area, Metric: Power Capacity, Milestone: Site Acquired, Power Source: Other, Role: Investor | source-terms-not-recorded | Capacity | ca9ceade0b546cb1f418e2194a95940efbe506cf9e2f5a692594943a7de6b067Factual source record; not the publisher page | ||
| Data4 breaks ground on data center project in Hanau, Germany Archived copy | BeBeez International (republishing DCD) Trade publication | Imported: Geometry, Imported: Record, Metric: Land Area, Metric: Power Capacity, Milestone: Construction Started, Milestone: Site Acquired, Role: Developer, Role: Investor | source-terms-not-recorded | BeBeez International (republishing DCD) | 225e61c0241de29a56a3a5fc1d45b302ac707096f33615180a48e2a4e72ab17aFactual source record; not the publisher page | ||
| Data4 lays the foundations on its first mega campus in Germany: a new gateway to AI, Cloud and Digital Sovereignty Archived copy | Data4 Company disclosure | Imported: Geometry, Imported: Record, Metric: Investment, Metric: Land Area, Metric: Power Capacity, Milestone: Construction Started, Power Source: Other, Role: Developer, Operator claim, Owner claim | source-terms-not-recorded | Data4 | c0a2b2d27549e4a519f28b975a3291b1e455133e075115864220b42fcf29350aFactual source record; not the publisher page | ||
| Großauheim Archived copy | Wikipedia Other | Imported: Geometry, Imported: Record | not stated | source-terms-not-recorded | Wikipedia | c418f0dd1719a869c975272bb2cc69e52cc96dba51cef089e22bcc250366f18fFactual source record; not the publisher page | |
| RP Darmstadt 1. Teilgenehmigung 17.06.2026, Data 4 Germany S.à.r.l. — 64 emergency generators and a house generator (457 MW) for the Rechenzentrum-Campus Hanau, Depotstraße (Az. IV/F 43.1-1646/12-Gen2023/027) Archived copy | Regierungspräsidium Darmstadt, Abteilung Umwelt Frankfurt Government record | Site and project identity | public-record-source-terms | Regierungspräsidium Darmstadt | e260845d9f09c3a7a964544bc583059f0b5487f67945d35a2d699046eff59205Retained source material; see source provenance |
Cite this site
Kyars, K. (2026). Data4 Hanau campus [site vcc-site-4a5d5083c6a8b110c612]. In Data Center Atlas (2026-10-27) [Data set]. https://kiankyars.github.io/datacenter-atlas/sites/vcc-site-4a5d5083c6a8b110c612/
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