Speculative Builders Are Driving Up Data Center Construction Costs — Before Anyone's Even Signed a Lease

Speculative Builders Are Driving Up Data Center Construction Costs — Before Anyone's Even Signed a Lease

Let me tell you something that's been sitting wrong with me all week. Jim Cramer — the guy everyone loves to hate, the guy whose picks move markets — said something on Monday night's Mad Money that cut straight through the noise: speculative builders are driving up the cost of data center construction. Before you roll your eyes at the Cramer of it all, hear me out. He's not wrong. He's more right than he knows, and the people who end up paying for it aren't the spec builders. They're the rest of us.

I've been running hosting infrastructure for over a decade. I've watched the AI buildout turn every input — power, land, transformers, steel, labor — into a bidding war. But this phase is different. This is developers breaking ground on powered shells before a single tenant has signed a lease, bidding up every subcontractor and every ton of rebar in the process. That's not demand. That's speculation wearing a hard hat.

What Cramer Actually Said — and Why It Stings

The clip is two and a half minutes of Cramer talking about the backlash to the AI boom and the construction problem underneath it. The money line is right in the title: speculative builders are driving up the cost of data center construction. He wasn't inventing a story. He was reading the market — and the market is telling anyone who'll listen that a growing chunk of the buildout is happening on faith, not on leases.

Now, Cramer's own position on the AI trade is complicated. Days earlier he was telling viewers that market pessimism had created buying opportunities, that he was snapping up beaten-down data center stocks for his Charitable Trust, that Micron could double again on the AI memory shortage. "I know 'not bad' isn't much of a clarion call," he said, "but you're certainly getting better prices than you'd see if the backdrop were good." So this isn't a bear talking. This is a bull looking at the construction pipeline and flinching. When the cheerleader starts noting the cracks in the stadium, you should check the foundation yourself.

The Spec Model — Why Builders Break Ground With No Tenant

Here's the thing people outside this industry don't get: speculative data center building isn't stupidity. It's a rational response to a broken queue. Average grid interconnection wait times in primary US markets now exceed four years, according to JLL's 2026 Global Data Center Outlook. If you wait for a signed lease before you enter the interconnection queue, you're four years behind the developer who started speculatively today. The lease follows the power, not the other way around. Hyperscalers want capacity that's ready or nearly ready — Amazon, Microsoft, Google, and Meta are on track to spend something like $725 billion combined in 2026, with roughly three-quarters of it aimed at AI data centers, GPUs, and power — and they'll pay a premium to a developer who already absorbed the delivery risk.

So you get powered shells. Empty buildings with transformers and liquid cooling loops installed, waiting for a tenant who hasn't signed. JLL and Turner & Townsend put the global average shell-and-core cost at $11.3 million per megawatt in 2026 — up from $7.7 million in 2020. That's a 47% increase in six years. AI-optimized shells with liquid cooling run $15 to $25 million per megawatt, and full-stack with GPUs you're looking at $30 to $45 million. A single 100-megawatt speculative phase is a billion-dollar bet with no lease attached. And 60% of industry professionals expect construction costs to keep inflating 5-15% this year, with another 21% expecting worse than that. Everybody knows it's getting more expensive. Nobody's stopping.

The Two Readings — Rational Play, or the Same Overbuild With a Shovel

There are two ways to read this, and both are true at the same time.

Reading one: the spec build is the only way the industry can actually deliver. Speed to power is the top site-selection variable for hyperscale and AI tenants in 2026 — ahead of construction cost, latency, everything. A developer with a powered site wins deals that a developer with a better raw site on a four-year queue can't even bid on. In a world where grid access is the scarcest commodity on earth, building ahead of the lease is how you secure it. I get that. I've lived the power problem from the other side.

Reading two: this is the same overbuild we've been watching cool off for weeks, now wearing a hard hat. Sightline Climate tracks 190 gigawatts across 777 large data center and AI factory projects of 50 megawatts or more announced since 2024. Of the roughly 16 gigawatts slated for delivery this year, only about 5 gigawatts is actually under construction. The other 11 gigawatts is announcements. Based on 2025 slippage patterns, they estimate 30-50% of the 2026 pipeline will not come online on schedule. So you have a construction boom priced like everything's going to build, while a third to a half of it slides. That gap between announced and deliverable is the defining risk of the speculative model — and it's billions of dollars of capital sitting in shells that may not find tenants.

The Secondary Bottleneck Nobody's Talking About — Phantom Interconnection

Here's the part that keeps me up at night, and it's the piece Cramer's segment doesn't mention: the speculative model is clogging the very queue it's designed to beat. Utilities and grid operators are reporting speculative grid reservations from projects that may never build. Developers who enter the queue without genuine build-readiness are consuming interconnection capacity that legitimate projects need — inflating apparent demand figures, stretching timelines for everyone, and pushing the whole market toward even more speculative behavior. The queue gets longer, so more developers jump it by building spec, which fills the queue with ghosts. It's a feedback loop, and the cost of it lands in every construction quote.

Then there's the money. JLL estimates roughly $70 billion of new debt will be required for data center real estate through 2030. Banks won't touch pre-lease risk the way they used to, so private credit is filling the gap — infrastructure debt platforms and private credit funds taking pre-lease risk at higher spreads. Mini-perm structures with lease-up covenants, cash traps, equity step-ups. That's the smell of a market that knows it's overextended and is pricing the risk in. When the financing for a shell costs more than the shell, someone is going to eat a loss. Ent?

What This Means for Independent Hosting Providers

If you run independent infrastructure — and I know a lot of you do, because I talk to you every day — here's what I'd be doing right now.

First, lock your construction and expansion pricing now. If you're building, sign fixed-price contracts this quarter. Turner & Townsend's own survey says most of the industry expects costs to keep climbing through 2026. Waiting for prices to fall is waiting for a bus that isn't coming.

Second, don't confuse construction inflation with demand. Rising build costs are being paid by spec developers betting on future tenants — they are not proof that demand is here today. The Sightline numbers are the reality check: only a third of this year's pipeline is actually being built. Price your services on real demand, not on what the announcement press releases claim.

Third, watch for distressed shells. The 30-50% slippage rate means unleased shells will hit the market — in prime markets, at prices the original developers can't carry. That's your acquisition moment. Cash-rich operators who wait eighteen months are going to pick up powered capacity at a discount. Be ready for that window.

Fourth, position yourself as the capital-light alternative. When a new-build competitor needs $30-45 million per megawatt all-in and is paying double-digit construction financing, your existing, paid-for capacity is worth more every single quarter. Don't discount it. Raise your hand and explain that math to your customers.

Fifth, read your own lease and colo contracts for construction-cost pass-throughs. If your landlord has a spec shell behind your facility, their financing costs and insurance are going up — and guess where that lands. Know your contract before the renewal letter arrives.

The Bottom Line

Cramer said it in two minutes; it took me a decade to see it clearly. The AI buildout has moved from a demand story to a construction story, and construction is being priced by speculation, not by leases. That doesn't mean the boom is over — it means the boom is getting expensive in ways the demand-side numbers don't show. The builders will be fine, mostly. The lenders will be fine, mostly. The ones who have to be careful are the operators who aren't building at all — because every dollar the spec developers bid up is a dollar of cost that's coming for the rest of the market.

Don't panic. Plan. And when the distressed shells start hitting the market — and they will — you'll want to be the one with cash and a clear head. That's what separates the people who survive cycles from the people who get buried by them.

— Allan Ali, Founder

This article was produced with AI-assisted research and editorial support. Sources: CNBC Mad Money, Yahoo Finance, JLL Global Data Center Outlook 2026, Turner & Townsend Data Centre Construction Cost Index 2025-2026, Sightline Climate, Axis Intelligence Research, Build.