Castellan plans, manages, and delivers the full data-centre build-out — design, construction, and commissioning, engineered for GPU densities. We act as your build partner; you own and operate the result.
Castellan delivers the full physical envelope of an AI facility — every layer between an interconnection point and a powered rack. We design it, build it, and hand over a campus ready for tenant fit-out.
GPU clusters concentrate power and heat in ways traditional enterprise data centres never had to handle. Rack densities that were once exceptional are now the baseline, and cooling — not floor space — is the binding constraint.
Every Castellan build is specified for that reality from the first drawing, so a campus can host current generations and absorb the next without a rebuild.
Castellan draws on the competencies and experience of its sister company, the Bitkern Group, built up over a decade in energy and large-scale infrastructure. We construct to the standards institutional tenants and their auditors expect, and hand over a completed, commissioned facility for you to own and operate — or step up to a fully leased Powered Shell.
From power density and cooling strategy to delivery timeline — we'll scope a campus to your workload.