What a Colocation Data Center Means in Commercial Real Estate
A colocation data center is a facility owned and managed by a service provider that rents space to customers for their own computing equipment. In commercial real estate it is a building and an operating business at once. The customer occupies capacity, and the provider runs the facility around it.
What the provider sells and what the customer rents
The provider operates the building and rents physical space and supporting infrastructure to customers. Customers install their own computing equipment, and the provider carries the job of operating the facility. That split between occupant and operator is what separates colocation from an ordinary lease.
Capacity is packaged in standardized units sold in increments of IT load, which is the power drawn by the customer’s computing equipment, measured in kilowatts. A customer renting 500 kW of IT load is buying a defined block of capacity, and square footage is secondary to that block.
Companies used to build their own data centers. The wholesale data center model came out of that practice and sits beside colocation as another way to supply the same demand.
Enterprise and colocation facilities place the operating burden differently
An enterprise data center is typically built and used by one organization. That organization settles the design, pays for construction and operates the facility for its own equipment.
A colocation facility reverses that arrangement. A service provider owns it and manages it, then rents space to many customers. The provider therefore carries the construction cost, the operating responsibility and the job of keeping capacity filled.
For an investor, the two structures raise different cash flow questions. Enterprise space turns on one user’s continued need. Colocation turns on how well a provider fills and operates a shared building.
Kilowatts of IT load as the unit of sale
When capacity is sold in increments of IT load, the natural measure of a facility is the kilowatts it can deliver to customer equipment. Leased and unleased capacity can then be tracked in kilowatts, the same unit the provider sells.
Floor area is a weaker yardstick. Two rooms with the same square footage can support very different amounts of IT load, so a rent per square foot figure says little about what a customer actually bought.
Standardized units also give a developer a repeatable product to price and deliver, one increment at a time.
Ownership, specialist capital and consolidation
Specialist funds exist that buy and manage existing data centers and also construct new facilities for tenants. That puts ownership and operation in the same hands, a different profile from a passive landlord.
The global data center market has attracted around $25 billion per year of new investment in recent years. A figure like that describes capital flow over a period and says nothing about returns on any single facility.
Colocation ownership also changes through acquisition. Larger operators have bought smaller data center businesses to widen their geographic reach, and a single deal in one metro area can add four facilities at once. An operator may also sell a business in one country to fill balance-sheet gaps elsewhere and fund expansion in other markets.
“Specialist funds exist that both buy and manage existing data centers as well as construct new facilities for tenants.”
Worked example: two hypothetical leasing outcomes on one 2,000 kW facility
This hypothetical illustration uses round numbers to show how leasing level drives return when costs are largely fixed. A facility has 2,000 kW of sellable IT load and cost $25,000,000 to build. Customers pay $150 per kW per month, which is $1,800 per kW per year (150 multiplied by 12). Annual operating cost is $1,100,000 in both cases. These figures illustrate arithmetic only and are not market pricing.
Base case: 90 percent of capacity is leased. Leased capacity is 2,000 multiplied by 90 divided by 100, or 1,800 kW. Revenue is 1,800 kW multiplied by $1,800, or $3,240,000. Net operating income is $3,240,000 minus $1,100,000, or $2,140,000. Dividing by the $25,000,000 cost and multiplying by 100 gives a yield on cost of 8.56 percent.
Stressed case: 70 percent of capacity is leased, on the same capital and the same operating cost. Leased capacity is 1,400 kW. Revenue is 1,400 kW multiplied by $1,800, or $2,520,000. Net operating income is $2,520,000 minus $1,100,000, or $1,420,000. Yield on cost is 5.68 percent.
Net operating income is $720,000 lower in the stressed case, and yield on cost is 2.88 percentage points lower. Every 10 percentage points of leasing equals 200 kW (2,000 multiplied by 10 divided by 100), worth $360,000 of revenue (200 multiplied by $1,800), or 1.44 percentage points of yield on cost. Because operating cost does not change in this illustration, the whole revenue shortfall falls through to net operating income.
Common mistakes in colocation analysis
Reading a colocation facility as ordinary single-tenant space leaves out the provider. The defining arrangement places a service provider between the real estate and the customer equipment, so the facility’s results depend on how that provider manages and fills the building.
Measuring capacity in square feet hides what was sold. Where units are standardized by IT load, area comparisons cannot show how many kilowatts of customer capacity each building carries.
Treating enterprise and colocation facilities as equivalent puts operations with the wrong party. A colocation analysis that treats the facility as a single-tenant asset will misjudge the rent roll, because a service provider’s income depends on leasing capacity to many customers and on keeping them over time.
Reading an operator acquisition as a building purchase alone misses the platform. A deal that widens geographic reach changes the provider’s coverage as well as its asset count, and the two belong in separate parts of the analysis.
Quoting a yield on cost at full leasing and stopping there overstates certainty. In the example, a 20 point drop in leasing cut yield on cost from 8.56 percent to 5.68 percent when operating cost stayed fixed.
Checklist questions for a colocation real estate review
Who owns and manages the facility? The answer shows whether operating responsibility sits with a service provider or an enterprise user.
What exactly does the customer rent? Standardized capacity sold by IT load differs from space measured by area, and the lease terms follow the unit.
Is the building made for one organization or for provider customers? That single fact separates the enterprise definition from the colocation definition.
How much of the sellable IT load is leased today? Leased kilowatts against sellable kilowatts is the leasing level that drives the return, as the example shows.
Does the investment case rely on ownership, operation or both? Specialist investors may buy and manage existing facilities or construct them for tenants.
If an acquisition is part of the thesis, what changes in geographic reach? Expansion by purchase has a different rationale from adding a single building.
How is new capacity delivered? Units built in repeatable increments of IT load are sold in those same increments.