$500 Billion in Capital Chasing the Sector
Data centres have evolved from a niche infrastructure sub-sector to the largest single category of commercial real estate investment globally. Annual transaction volume exceeded $100 billion in 2024-2025. CBRE estimates $500 billion of institutional capital is allocated or seeking allocation to data centre assets.
The sector's appeal is straightforward: 15-20% annual demand growth driven by AI and cloud computing, long-duration contracted cash flows, and replacement cost dynamics that protect valuations. The risk: capital intensity, technology evolution, and power availability constraints that can strand assets.
Public Market: Data Centre REITs
**Equinix (EQIX) — Market cap: ~$85 billion** - 260+ data centres across 72 metros in 33 countries - Interconnection-first strategy: 470,000+ cross-connects generating $2.5B+ in annual revenue - Revenue: ~$8.5 billion annually - AFFO yield: 3.5-4.0% - Strategy: Carrier-neutral colocation and interconnection, geographic diversification
**Digital Realty (DLR) — Market cap: ~$55 billion** - 300+ data centres across 50+ metros globally - Hyperscale and enterprise colocation - Revenue: ~$5.5 billion annually - AFFO yield: 4.0-4.5% - Strategy: Scale-oriented, hyperscale-focused with growing interconnection platform
**Key public market metrics:** - EV/EBITDA: 20-28x (versus 15-18x for traditional REITs) - Price/AFFO: 25-35x - Dividend yield: 2.0-3.5% (lower than REIT average, reflecting growth premium) - Revenue growth: 8-15% annually
**Why the premium?** Data centre REITs trade at significant premiums to other REIT sectors because of higher organic growth rates (8-15% versus 2-4% for office/retail), stronger same-store NOI growth, and a multi-decade demand runway. The AI investment cycle has widened this premium further.
Private Equity and Infrastructure Funds
The private market has overtaken the public market in data centre transaction volume.
Major platforms:
- -Blackstone:: QTS Realty ($10B acquisition), AirTrunk ($16B), $100B+ total data centre platform commitment
- -DigitalBridge:: Vantage Data Centers, DataBank, Switch (with IFM). Largest dedicated digital infrastructure investor.
- -KKR:: Global Switch, CyrusOne (with Brookfield). Significant Asia-Pacific presence.
- -Brookfield:: CyrusOne acquisition ($15B including debt), DCI Data Centers (Australia/Asia)
- -Stonepeak:: Cologix, Compass Datacenters. Infrastructure-focused with significant data centre allocation.
**Private market return targets:** - Core infrastructure (stabilised, long-lease): 8-12% net IRR - Value-add (lease-up, expansion): 12-18% net IRR - Development (ground-up): 18-25% net IRR (gross)
**Fund structures:** - Closed-end funds (7-10 year term): Development and value-add strategies - Open-end/core funds (perpetual): Stabilised, income-producing assets - Co-investment vehicles: Deal-by-deal participation alongside fund commitments - Joint ventures: Operator/developer + capital partner (common for hyperscale build-to-suit)
Joint Ventures and Partnerships
JVs have become the dominant development structure, pairing operators (who contribute development expertise, tenant relationships, and operational capability) with capital partners (who provide equity).
**Typical JV structure:** - Capital partner: 80-90% of equity - Operating partner: 10-20% of equity plus promoted interest (carried interest) - Promote: 20-30% of profits above a preferred return (typically 8-10%) - Operating partner responsibilities: development, leasing, management - Capital partner rights: Major decision approval, budget approval, capital call rights
**Notable JVs:** - Equinix / GIC: $15B+ joint venture for hyperscale development globally - Digital Realty / Blackstone: Multiple development JVs across US and European markets - STACK / IPI Partners: $7.5B joint venture for North American development
Valuation Frameworks
**Capitalisation rate (Cap rate):** Net operating income / asset value. The primary metric for stabilised assets. - Hyperscale, long-lease, primary market: 5.0-6.0% - Colocation, stabilised: 5.5-7.0% - Development land with power: 7.0-9.0% (on projected stabilised NOI)
**Replacement cost:** Construction cost per MW provides a valuation floor. At $11.3M/MW national average (and $14-18M/MW in primary markets), a stabilised facility trading below replacement cost is theoretically undervalued — though technology risk complicates this analysis.
**EV/EBITDA:** Enterprise value to EBITDA. For transactions and public market comparisons. - Public REITs: 20-28x - Private market transactions: 18-25x - Platform premiums (portfolio with development pipeline): 22-30x
**Price per MW:** A shorthand metric. Recent transactions: - Hyperscale, primary market: $14-20M/MW - Colocation, stabilised: $12-16M/MW - Powered shell: $8-12M/MW
**Discounted cash flow:** 10-20 year DCF with terminal cap rate. Discount rates: 7-10% (core) to 12-15% (development). Key assumptions: lease renewal probability, power cost escalation, PUE improvement trajectory, and terminal cap rate.
Risk Factors
**Technology risk:** A 20-year data centre may face obsolescence as power density requirements, cooling technology, and connectivity standards evolve. The shift from air to liquid cooling is already stranding some older facilities.
**Power availability risk:** Facilities without long-term, transferable power contracts face potential capacity constraints. Utility interconnection queues in primary markets extend 3-5 years.
**Concentration risk:** Single-tenant hyperscale facilities have binary risk profiles — the asset is either fully utilised or fully vacant.
**Regulatory risk:** Moratoriums, environmental restrictions, and community opposition can block expansion and reduce portfolio optionality.
**Interest rate sensitivity:** Data centre valuations are inversely correlated with interest rates. A 100 bps increase in the risk-free rate theoretically compresses cap rates and reduces asset values by 8-15%.
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