Microsoft Petit-Landau / Hombourg Datacenter Campus (lieu-dit Alte Stocketen, Haut-Rhin)

Name: Microsoft Petit-Landau / Hombourg Datacenter Campus (lieu-dit Alte Stocketen, Haut-Rhin)
Address: FR

Announced

France · 1 project · Last reported 2026-10-12

Summary

Microsoft 1985 France plans a data centre of three units, each with an administrative building and a two-level server-hall building, on just under 36 ha at the lieu-dit Alte Stocketen in Petit-Landau and marginally Hombourg (Haut-Rhin), beside the Grand Canal d'Alsace. On 12 October 2026 the Mulhouse Alsace Agglomération council declared the project of general interest and approved the PLU change that zones the site for economic use (published 16 October 2026). The environmental authorisation and the building permits filed on 30 October 2025 were still to be decided; no development consent or physical work is established. evidence

Mulhouse Alsace Agglomération (m2A) · published 2026-10-16

Location

The interactive map needs JavaScript. Display anchor: 47.74578, 7.53072 (Point locator, WGS 84).

View location: OpenStreetMap · Google Maps · Bing aerial · Copernicus Browser

Campus reference; individual project footprints are not mapped.

Projects (1)

Microsoft Petit-Landau datacenter (three units, about 36 ha)

Announced last observed as of 2026-10-12 · Project announcement

The portal lists the Petit-Landau PLU in production as version 68254_PLU_20261012, uploaded on 16 October 2026 (gpu_timestamp), the version produced by the 12 October 2026 project declaration. evidence

IGN API Carto; Géoportail de l'urbanisme (GPU) · publication date not stated

The regulation of the PLU version produced by the project declaration (header "PLU DPmec", 2026) defines zone UE as an urbanised zone for economic activities that admits industrial, office and warehouse buildings and installations classified for environmental protection (ICPE). evidence

Commune de Petit-Landau / m2A, published on the Géoportail de l'urbanisme · publication date not stated

The cadastral named-place layer for Petit-Landau contains two polygons named ALTE STOCKETEN (created 27 October 2025 and 26 January 2026) totalling 39.4 ha. 92.5% of the 12 October 2026 UE zone lies within them and the zone centroid falls inside them; the rest of the zone overlaps the Grand Canal d'Alsace named place. evidence

Etalab / DGFiP cadastre (cadastre.data.gouv.fr) · publication date not stated

Companies

Operator: Microsoft 1985 France SARL (intended) evidence

Source and location review

Status source

m2A council deliberation 2026/275C: approval of the project declaration bringing the Petit-Landau PLU into conformity for a Microsoft data centre (sitting of 12 October 2026) evidence row
Mulhouse Alsace Agglomération (m2A) · published 2026-10-16 · Government record

Locator

Campus locator · Official source · official_plu_zone_polygon_centroid_created_by_project_declaration 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 verification

Status age at review: 15 days before the data update on 2026-10-27

Location details

Coordinates: 47.74578, 7.53072
Geometry licence: no-open-redistribution-license-asserted
Use scope: Campus locator
Scope class: official_plu_zone_polygon_centroid_created_by_project_declaration
Authority: Official source
Source entity: Campus
Method: gpu_zone_urba_UE_datvalid_20261012_area_centroid_computed_in_epsg2154_returned_to_wgs84
Derivation: direct_geometry
Precision scope: Centroid of the 38.3 ha UE zone (about 1.0 by 1.1 km) that the 12 October 2026 project declaration added to the Petit-Landau PLU for the data centre. It represents the zoned campus land, not individual buildings, the marginal Hombourg part or a surveyed project boundary.
Horizontal uncertainty: Not reported
The portal publishes no positional accuracy for the zoning polygon, and the point is the centroid of a 38 ha zone, not a building position.
Geometry evidence: b977a712

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.

Evidence for Microsoft Petit-Landau / Hombourg Datacenter Campus (lieu-dit Alte Stocketen, Haut-Rhin)
Title	Publisher	Roles	Published	Retrieved	Licence	Attribution	Content hash (SHA-256)
Cadastre Etalab: named places (lieux-dits) of Petit-Landau (commune 68254) Archived copy	Etalab / DGFiP cadastre (cadastre.data.gouv.fr) Government record	Site and project identity	not stated	2026-10-22	etalab-2.0	Etalab / DGFiP	`98a5b0bf2ca475b9d9e86c5ec15c249b89200c7a4a8b87d39d859c016e31569a` Retained source material; see source provenance
Géoportail de l'urbanisme via IGN API Carto: current planning document of Petit-Landau (PLU 68254_PLU_20261012) Archived copy	IGN API Carto; Géoportail de l'urbanisme (GPU) Government record	Site and project identity	not stated	2026-10-22	no-open-redistribution-license-asserted	IGN / Géoportail de l'urbanisme	`3970db80bc2730c6a7dd5e6b9b179c1f91f47e5f7a880928aa6786dead577653` Retained source material; see source provenance
Géoportail de l'urbanisme via IGN API Carto: zoning features of the Petit-Landau PLU (document 68254_PLU_20261012) Archived copy	IGN API Carto; Géoportail de l'urbanisme (GPU) Government record	Geometry	not stated	2026-10-22	no-open-redistribution-license-asserted	IGN / Géoportail de l'urbanisme	`c85424c54d0078d77a3c78ecb0ac5fae43d7b8d78b7a1ba1ce8faf23e0b89d65` Retained source material; see source provenance
m2A council deliberation 2026/275C: approval of the project declaration bringing the Petit-Landau PLU into conformity for a Microsoft data centre (sitting of 12 October 2026) Archived copy	Mulhouse Alsace Agglomération (m2A) Government record	Project announcement, Operator claim	2026-10-16	2026-10-22	all-rights-reserved	Mulhouse Alsace Agglomération (m2A)	`e107d1313fccca15827e0fdd83356691ae491a2a40e13bf519c3b9df6833146f` Retained source material; see source provenance
Petit-Landau PLU regulation, version of 12 October 2026 ("PLU DPmec"), chapter III zone UE Archived copy	Commune de Petit-Landau / m2A, published on the Géoportail de l'urbanisme Government record	Site and project identity	not stated	2026-10-22	all-rights-reserved	m2A / Géoportail de l'urbanisme	`c779b7e6be2f1850253f53c586ec6155d3410b0da49b11c6ece925dde5bf2621` Retained source material; see source provenance

Cite this site

Kyars, K. (2026). Microsoft Petit-Landau / Hombourg Datacenter Campus (lieu-dit Alte Stocketen, Haut-Rhin) [site vcc-site-a984e7c4df277059e820]. In Data Center Atlas (2026-10-27) [Data set]. https://kiankyars.github.io/datacenter-atlas/sites/vcc-site-a984e7c4df277059e820/

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