Telehouse 3
Île-de-France, France
Source: OpenStreetMap
Telehouse 3 is a mapped data center in Île-de-France, France, operated by Telehouse and ultimately owned by KDDI. DataCentersExposed has documented a 376,590 sq ft footprint and 1 environmental-permit record at this site. It runs on France's grid, which was 5% fossil-fuelled at 41 gCO₂e/kWh in 2025 (Ember).
Reporting by Eric Keller · Updated Jun 14, 2026
Most sites are mapped — located but awaiting a second source. How we verify
Dot size = disclosed capacity (MW). Smallest = undisclosed, not small.
Overview
source: linkTelehouse 3 is a mapped data center in the Île-de-France region of France, operated by Telehouse and ultimately owned by Japanese telecom group KDDI. The site occupies a footprint of 376,590 square feet. Beyond that figure and its corporate ownership chain, little has been independently verified about its power draw or environmental impact.
Operator chain
The grid behind this site
source: Ember · EurostatA large data center in France pays 12.24¢/kWh for electricity — a household pays 29.26¢, 58% more than the data center (Eurostat).
National grid context, not this facility's own metering. Full country picture: France data centers.
In the news
source: Google News (local + English)- Nintendo, TV5 Monde, Bouygues Telecom... Le géant du data center Telehouse investit 250 millions d’euros dans les YvelinesLe Parisien· May 31, 2026
- La Ville de Saint-Victoret dépose un recours contre le data center des Pennes-MirabeauLa Provence· May 25, 2026
- Vive opposition d’habitants au projet de data centerwww.lamarseillaise.fr· May 4, 2026
- Data center des Pennes Mirabeau : des CIQ regroupés en collectif déposent un recours contre le projetLa Provence· May 2, 2026
- Data center des Pennes-Mirabeau : relations glaciales entre le maire et la société japonaise TelehouseLa Provence· Apr 23, 2026
- Le nouveau maire des Pennes-Mirabeau, Romain Amaro, durcit le ton face au data center Telehouse- Gomet'· Apr 20, 2026
Environmental permits
source: Géorisques (ICPE)- TELEHOUSE EUROPE0006513131ICPE Autorisation · Magny-les-Hameaux 78114 · registered as "TELEHOUSE EUROPE" · ~181 m from the mapped location (name match) · IED