Primary Structures in Data Centre Leasing
Colocation and technical property agreements rely on two main legal structures: real property leases and service agreements. The chosen model determines operational control, accounting treatment, and ongoing maintenance obligations.
Under a Master Services Agreement (MSA), common in multi-tenant colocation, the operator delivers space, electrical capacity, cooling, and security as an integrated service. The occupier receives a contractual licence to install hardware within assigned racks, dedicated cages, or private suites. This structure grants personal contractual rights rather than a registered leasehold property interest, leaving central site maintenance with the operator.
Single-tenant facilities and powered shells rely on real property leases. Under a triple net lease, the occupier pays base rent alongside property taxes, building insurance, and maintenance. In a powered shell, the occupier funds, installs, and manages the mechanical and electrical fit-out directly.
Turnkey wholesale agreements provide an intermediate approach. The facility owner puts the technical plant into operation, delivering conditioned power and cooling to the data hall boundary under modified gross leases or capacity contracts. This arrangement provides dedicated space without capital outlay for central plant.
Key diligence questions for occupiers evaluating lease structures include:
- Does your organisation require operating-cost treatment under a service contract or capital lease accounting?
- Who holds legal title to the land, and what rights exist if a superior landlord defaults?
- Which party maintains and replaces primary electrical and cooling plant over the term?
Power Metering and Pricing Mechanics
Power commitments determine data centre commercial terms. While standard commercial real estate prices space by area, technical facilities structure pricing around electrical capacity and energy consumption.
Three commercial models structure power pricing:
- Gross rates: A single recurring charge covers space footprint, cooling, and an agreed power ceiling. Gross pricing simplifies billing, but can lead to overpayment if workloads draw less power than contracted.
- Capacity reservation with metered pass-through: The occupier pays a fixed reservation fee per kilowatt or megawatt of dedicated capacity. Electricity consumed by IT equipment is metered and charged at pass-through utility rates.
- Power Usage Effectiveness (PUE) benchmarks: Contracts link billing to facility cooling efficiency. Agreed PUE caps protect occupiers from absorbing costs caused by inefficient plant.
Key diligence questions for power provisions include:
- Where is electricity metered, and who absorbs transformer and distribution losses?
- How are utility tariff changes and green energy surcharges calculated and passed through?
- Does the contract enforce take-or-pay minimums before full IT deployment?
Key Terms in Commercial Negotiations
Negotiating technical agreements requires balancing long-term capacity requirements against commercial flexibility. Critical terms to examine include:
- Phased ramp schedules: Contractual ramps defer reservation fees on expansion capacity until agreed energisation dates.
- Service levels and remedies: Agreed thresholds govern power continuity, temperature, humidity, and site access. Contracts define service credits and termination rights for repeated outages.
- Expansion protections: Pre-emption rights or options protect adjacent white space and scheduled power tranches.
- Assignment and subletting: Terms state whether an occupier can assign capacity to affiliates or sublet unused power to third parties.
- Reinstatement obligations: Surrender terms specify whether cabling and equipment must be removed at term end or left in place.
- Audit access: Inspection rights cover maintenance logs, environmental records, and sub-meter calibration.
Structuring an Outline Capacity Brief
A clear capacity brief prevents unfocused searches and speeds up commercial discussions. Occupiers should define core non-sensitive criteria before entering bilateral talks:
- Target geography: Preferred metropolitan markets, latency limits, and acceptable secondary locations.
- Power demand: Day-one power draw, peak capacity, and expected rack densities.
- Deployment timing: Target dates for contract execution, technical fit-out, and energisation.
- Space layout: Preferences for shared racks, dedicated caged space, or private halls.
Data Centre Axis reviews stated requirements against its research. Public directories cover Australian data centres and UK data centres, while enquiries for other regions are reviewed individually. Occupiers can submit an outline capacity sourcing enquiry specifying non-sensitive location, power, and timing details. Data Centre Axis supplies individually scoped capacity briefs and arranges managed private introductions where both parties agree. Detailed technical due diligence, legal reviews, and commercial terms remain directly between the parties. Where specialised assistance is required, strategic advisory work is scoped separately, alongside research on colocation options and data centre land.