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Don’t get screwed.</text><text x="58" y="258" font-family="Arial,Helvetica,sans-serif" font-size="30" font-weight="600" fill="#6b5b4d">Leases, TI, NNN &amp; buildouts — negotiated in your favor</text><g transform="translate(1010,86)" fill="none" stroke="#C0531F" stroke-width="9" stroke-linejoin="round"><rect x="20" y="40" width="150" height="130"/><line x1="20" y1="40" x2="95" y2="6"/><line x1="170" y1="40" x2="95" y2="6"/><rect x="50" y="80" width="36" height="36"/><rect x="104" y="80" width="36" height="36"/><rect x="74" y="128" width="42" height="42"/></g></svg>

How Do I Budget a Data Center or Colocation Buildout?

Direct Answer

Budget by the megawatt of IT load, not the square foot — that is the single most important thing to understand about data center economics. A built-out data center or colocation suite costs $9 million to $15+ million per megawatt (MW) of critical IT capacity in 2026, with the power and cooling infrastructure — not the building — driving 60–70% of the spend.

A modest 1 MW enterprise data hall is therefore a $9M–$15M project; a colocation tenant fitting out a leased suite (where the landlord already provides the power feed, cooling plant, and shell) spends far less, typically $2,000 to $6,000 per square foot for the white space plus rack and PDU costs.

The biggest money move is to lease colocation space rather than build your own facility unless you are deploying multiple megawatts — the capital and operating efficiency of a wholesale or retail colo provider almost always beats a self-built room below that scale.

The second money move: right-size your redundancy tier to your actual uptime need. The jump from N+1 (Tier III concurrently maintainable) to 2N (Tier IV fault tolerant) can add 30–50% to infrastructure cost because you are duplicating UPS, generators, and cooling paths.

Most enterprise workloads need Tier III / N+1, not Tier IV. Building to Tier IV "to be safe" on workloads that don't require it is how a budget doubles for redundancy you'll never use.

Build the Budget Around Power Density and Cooling

Everything in a data center scales off power density (kW per rack) and the redundancy topology. Plan these first:

• Electrical infrastructure (UPS, switchgear, PDUs, generators): $4M–$8M/MW. This is the heart of the budget. Sized to your kW/rack (typical 5–15 kW/rack; high-density AI/GPU racks now hit 30–80+ kW/rack), it includes UPS systems with battery or flywheel, automatic transfer switches, switchgear, busway/PDUs, and diesel generators with on-site fuel.
• Cooling: $2M–$5M/MW. CRAC/CRAH units, chillers, hot/cold aisle containment, and — for high-density AI loads — direct liquid cooling or rear-door heat exchangers. Cooling scales directly with IT load; you reject every watt you consume as heat.
• Generators and fuel: $1M–$3M/MW. Standby diesel generators sized to carry the full load plus cooling, with 24–72 hours of on-site fuel and refueling contracts.
• Fire suppression: clean-agent (FM-200, Novec, or inert gas) + VESDA early smoke detection. Budget $10–$30/SF of white space.
• Raised floor / containment / security: $50–$150/SF of white space.
• Racks, cabling, and structured wiring: for a colo tenant, $3,000–$8,000 per rack fully populated with PDUs and cabling.

Redundancy Tiers — Match the Spec to the Workload

The Uptime Institute's tier system is the language of data center redundancy, and your tier choice is the biggest cost lever after raw MW:

• Tier II (N+ components): ~99.741% availability. Cheapest, single distribution path. Suitable for non-critical or dev workloads.
• Tier III (N+1, concurrently maintainable): ~99.982% availability — about 1.6 hours of downtime/year. Redundant components and dual power paths so you can service any element without taking the load down. This is the enterprise sweet spot and what most colos sell.
• Tier IV (2N or 2N+1, fault tolerant): ~99.995% availability. Fully duplicated, fault-tolerant electrical and cooling — every system has a mirror. Costs 30–50% more than Tier III and is justified only for workloads where any outage is catastrophic.

Pick N+1 / Tier III as your default and only step up where a specific workload's downtime cost justifies the premium. Mixing tiers within a facility (Tier IV cage inside a Tier III hall) can optimize spend.

How Not to Get Screwed by the Landlord or Colo Provider

Data center deals are dense with traps around power billing, capacity, and exit:

1. Know what "power" you're actually buying. Colo pricing is per kW of committed (reserved) capacity, and you pay for what you reserve whether you use it or not. Don't over-reserve. Negotiate the ability to scale capacity up in increments rather than committing to your five-year peak on day one.
2. Scrutinize the PUE and power pass-through. Ask the provider's PUE (Power Usage Effectiveness) — a good facility runs 1.2–1.5; a bad one near 2.0 means you pay nearly double for cooling overhead baked into your power bill. Get power metered and billed at cost (pass-through), not marked up.
3. Verify the redundancy you're paying for is real. Demand commissioning documentation and the Uptime Institute tier certification (Design *and* Constructed Facility). Many providers claim "Tier III" without certification. Tour the generator yard and UPS room.
4. Cap cross-connect and remote-hands fees. Providers nickel-and-dime on cross-connects ($150–$500/month each) and remote-hands labor. Negotiate a bundle or caps; these recurring fees add up over a multi-year term.
5. Negotiate the exit and SLA teeth. Get a real SLA with financial penalties for power/cooling outages (not just credits you have to fight for), and a clean exit path — no restoration of your cage to bare floor beyond removing your own equipment.

Commissioning, Phasing, and Contingency

Never accept a data center without full commissioning (Levels 1–5, including integrated systems test / "pull the plug" load-bank testing under simulated failure). Hold retainage until commissioning passes — an uncommissioned facility is a liability, not an asset.

Phase by power block. Build the shell and core distribution for your full target, but deploy UPS, cooling, and generator capacity in MW (or half-MW) blocks as IT load lands. Buying 5 MW of infrastructure to run a 1 MW load is the most expensive mistake in the category — modular, phased deployment matches capital to actual demand.

Hold a 12–18% contingency. Long-lead electrical gear (switchgear and generators now carry 6–18 month lead times), commissioning shortfalls, and utility-feed delays are routine. On a $12M build that's $1.4M–$2.2M.

FAQ

How much does a data center cost to build per megawatt? Plan for $9 million to $15+ million per megawatt of critical IT load in 2026, with electrical and cooling infrastructure driving 60–70% of the spend. High-density AI/GPU deployments with liquid cooling push toward and past the top of that range.

For a colocation tenant fitting out leased white space, the relevant number is roughly $2,000–$6,000 per square foot plus committed-power charges, because the provider already built the power and cooling plant.

Should I build my own data center or use colocation? For most enterprises below a few megawatts, lease colocation — the capital efficiency, redundancy, and operating expertise of a wholesale/retail provider almost always beat a self-built room. Build your own only when you need multiple megawatts, full control, or have regulatory reasons.

Even then, phase deployment by power block rather than building peak capacity up front.

What redundancy tier do I actually need? Most enterprise workloads need Tier III / N+1 (concurrently maintainable) — about 99.982% availability and ~1.6 hours downtime/year — not Tier IV / 2N, which costs 30–50% more for fault tolerance most workloads don't require.

Default to Tier III and step up only the specific cages or workloads where an outage is genuinely catastrophic.

What hidden costs hurt colocation tenants the most? Over-reserving committed power (kW) you don't use, a provider with a poor PUE (near 2.0) that doubles cooling overhead in your power bill, marked-up power instead of pass-through metering, and recurring cross-connect ($150–$500/mo each) and remote-hands fees.

Negotiate metered cost-based power, fee caps, incremental capacity scaling, and an SLA with real financial penalties before signing.

Sources

• Uptime Institute, *Tier Classification System* and *Global Data Center Survey* — redundancy tier definitions, availability, and cost-per-MW benchmarks.
• CBRE, *Data Center Construction Cost & Global Trends reports* — cost-per-MW and per-SF buildout benchmarks by market.
• JLL, *Data Center Outlook and Construction Cost Guide* — power, cooling, and colocation pricing trends.
• Cushman & Wakefield, *Global Data Center Cost Index* — per-MW construction cost comparisons across markets.
• ASHRAE TC 9.9, *Thermal Guidelines for Data Processing Environments* — cooling load and density design standards.
• NAIOP / NFPA — data center development standards and clean-agent fire-suppression (NFPA 2001) requirements.
• BICSI ANSI/BICSI 002, *Data Center Design and Implementation Best Practices* — electrical, cabling, and commissioning standards.