Why site selection is your single most critical decision in the data centre lifecycle

Asia’s data centre boom is accelerating, with Southeast Asia capacity projected to triple between 2025 and 2030 as technology giants invest across the region. Choosing the right site is the most consequential decision a data centre developer or investor will make. 

In Asia, the challenge is especially acute. The region is highly exposed to natural catastrophe (NatCat) risk, power grids are under strain, and specialist labour is in short supply. A location that looks attractive on day one can become expensive if resilience upgrades, insurance capacity, or power delivery timelines are not assessed or de-risked early.

Four mission statements for data centre success

Data centre projects are shaped by four simple mission statements. Site selection sits at the start and shapes the rest because it determines what is feasible, financeable, insurable, and deliverable.

Mission statement 1: Acquire land and power (site selection)

A site can look viable on paper but still fail once you test the details. The key question is whether power can be delivered reliably, at the scale required, and within timelines that tenants and lenders will accept.

Start with power you can actually deliver

In some Asian markets, securing a grid connection can take years and demand is rising fast, especially for AI-related workloads. Interim solutions or on-site generation may shorten timelines, but they introduce additional approvals, contractual complexity, and operational risks. A robust approach tests deliverable capacity, redundancy, and the path to scalable expansion.

Marsh supports power resilience with:

• Early-stage screening to confirm power deliverability and identify site-level deal breakers before major capital is committed.
• Advisory to align power strategy, development timelines, and stakeholder requirements.

Build in resilience and insurability from day one

Early hazard checks and physical risk modelling can help rule out unsuitable sites quickly and identify upgrades that improve resilience, such as raised floor levels and improved drainage for flood risk, and stronger roofs and building envelopes in high-wind areas.

This is also where you test likely insurance implications early. Insurance capacity, deductibles, and pricing can materially affect the economics of a site and influence design choices.

Marsh supports site resilience with:

• Physical risk modelling and NatCat analytics to quantify exposure and prioritise mitigation.
• Risk engineering input to identify practical resilience upgrades and improve risk quality.
• Early insurability and insurance-structure planning to support realistic financing assumptions.

Treat labour as a site selection consideration

Data centres require specialised talent. Leading developers assess labour availability alongside power availability and consider nearby projects that may compete for the same skills.

Marsh supports labour readiness with:

• Talent mobility including compensation and benefits (both local and international expat management), and compliance with local laws and regulations.

Bring key decisions together

A good site selection process should provide a clear view of whether a location will work for developers, lenders, tenants, and insurers. Integrated advisory adds value by bringing these questions together early, rather than treating them as separate workstreams.

Marsh’s integrated advisory includes:

• Physical risk modelling and resilience advice that can be built into the design early.
• Risk engineering support for construction and operational risks.
• Insurance planning for construction and delay risks, including potential liquidated damages exposure.
• Financing support, including credit insurance to strengthen lender confidence.

Site selection choices shape every downstream stage. If the fundamentals are weak, the next stages become harder and more costly.