Description
The narrative around the Johor data centre market has fully transitioned from being an overflow scenario for the Singapore market to being the primary hyperscale and AI build-out market for Southeast Asia. What began as a spillover thesis driven by Singapore’s 2019 build pause has, between 2024 and 2026, matured into a structurally differentiated build-out cycle of its own — total contracted capacity in Johor has grown from just under 400MW at the end of 2023 to over 2.3GW by the end of 2025, with continued land acquisitions and power commitments being made well into 2026. Singapore’s reopening through the data centre capacity application program does not change the underlying dynamic; the bar for in-country approvals has been set deliberately high on data centre efficiency and sustainability, which means the bulk of incremental hyperscale and AI demand continues to flow north into Johor and across the strait into Batam.
The single most important structural development since the 2024 report is the formalisation of the Johor-Singapore Special Economic Zone (JS-SEZ) which is discussed in more detail in the report. The practical effect of this initiaitve is that the Singapore- Johor-Batam corridor now operates as an integrated capacity region rather than three loosely coupled markets, with Singapore as the strategic apex and Johor and Batam as the natural overflow build-out geographies.
The initial wave of demand was anchored by Chinese hyperscalers, but the more important story between 2024 and 2026 has been the emergence of US hyperscale demand at scale. Oracle and Microsoft have both anchored deeply, with multiple campuses under development and significant land acquisitions for potential self-build. The behavioural pattern in hyperscale markets is well established: once one or two large US hyperscalers anchor a market, the rest follow for competitive parity and to access the network and ecosystem effects that build up around the initial anchors. Johor has now passed that inflection point, and the gravity pull on the remaining US hyperscalers is increasingly hard to resist.
Hyperscale cloud demand will continue to drive the market, but AI is what has fundamentally re-rated the size of the opportunity. The first wave of AI demand was discovery-led and concentrated on training in a small number of US and Chinese markets. The second wave, now beginning to play out, is about inference at scale — and inference is a fundamentally different workload. It is latency-sensitive, geographically distributed, tied to where end users and enterprise systems live, and increasingly amplified by the rise of agentic AI workflows that consume orders of magnitude more compute per task than first-generation chatbot use cases. Johor and Batam are uniquely positioned to serve this demand profile, with the cost structure to support large-scale GPU deployments, the connectivity ecosystem to deliver low-latency inference back into Singapore, and the land and power resources to absorb the next wave of build-out.
The constraints, however, have also shifted. Water has emerged as the binding short-term constraint in Johor, with the November 2025 state-level decision to halt Tier-1 and Tier-2 approvals and freeze new water-cooled deployments until at least mid-2027. Regulatory expectations around PUE, WUE and carbon intensity have tightened materially, and the bar for what constitutes a viable build is rising.
The Johor cluster map has also widened from the two original anchor parks (Nusajaya Tech Park and Sedenak Tech Park) to ten distinct clusters, each with a different mix of operator, power readiness, water availability and latency to Singapore. Batam, meanwhile, has transitioned from a Singapore overflow proxy into a structurally differentiated Indonesian data centre market in its own right — with formal Special Economic Zone status across Nongsa Digital Park and Kabil Industrial Estate, the new Nongsa-Changi DC-to-DC cable system, and de-facto compliance hub status for OJK-regulated and PDP-governed workloads. Periods of relative oversupply or undersupply will continue to occur on 12–18 month cycles as builds come online and customer commitments time-shift, but we view these as short-term cyclical dynamics rather than structural concerns. The macro trajectory — driven by foundation model usage, agentic AI workflows, broadening enterprise AI adoption, and continued capex commitments by both US and Chinese hyperscalers — remains decisively bullish for inference-heavy markets such as Johor and Batam over a 5–10 year horizon. The market is no longer wide open in the way it was in 2024, but the long-term upside remains real, and the corridor has emerged as the single most important hyperscale and AI data centre region in the Asia-Pacific.
This report is an excellent resource for any service provider, hyperscaler, investor or enterprise end user looking to understand and project the data centre market in Johor and Batam or find a service provider. The methodology applied continues to be the most robust in the industry. We track supply on a critical power basis, split all the metrics along the enterprise and hyperscale segments, and aggregate inventory in multiple tiers according to market sub-regions, specific data centre clusters, build status and credibility, and absorption rates. Hyperscale leasing and demand are mapped out to granular levels with annual breakdowns and 5-year projections and a comprehensive list of new pipeline data centre builds and operational data centres are provided.
