High-Capacity, Low-PUE Data Center in the Heart of Seoul’s Gasan Cluster

Support digital transformation with 30 MW of IT load, <1.3 PUE, and Tier III infrastructure at STT Seoul 1

STT Seoul 1 is a state-of-the-art facility located in the Gasan data center cluster, a prime connectivity hub in central Seoul. Designed to meet Korea’s rising demand for digital infrastructure, this facility offers 426,000+ sq. ft. of total space and 30 MW of concurrently maintainable IT load with dual 22.9kV utility feeds and N+1 emergency power. The cooling system is built around resilient chilled water plants, N+2 fan wall units, and chilled water buffer tanks to support 24/7 operation with a target PUE under 1.3.

Certified to LEED Gold and targeting Uptime Tier III, TIA-942 Rated-3, and ISO 27001, STT Seoul 1 also features advanced fire suppression, seismic resilience, and 24/7 biometric security. It is fully carrier-neutral with 3 fiber entry points and access to local, cloud, and international networks, making it ideal for high-density, secure, and sustainable digital deployments in Korea.