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Cipher’s longer AI lease comes with a substantial cost obligation

Cipher’s Barber Lake agreement extends contracted occupancy to 20 years, but the developer retains significant construction-cost exposure.

September 28, 2026

THE DEVELOPMENT

What happened

On September 25, Cipher reported contracted revenue exceeding $9 billion, including approximately $5.2 billion from an additional decade committed by an unnamed AI lab. Delivery is phased from late 2026 into early 2027; rent begins as individual halls are delivered.

Cipher bears the first $359.3 million above the original construction budget. Half of costs beyond that threshold are reimbursable through additional rent over the aggregate term. These commitments represent future revenue, not cash already collected.

PREMIA VIEW

What this means for operators and investors

Buyers should value the cash remaining after construction, financing and ongoing investment. A longer contract can improve visibility while leaving substantial funding requirements upfront.

WHAT REMAINS UNCERTAIN

Final costs, delivery performance and the unnamed lab’s credit protections.

DECISION QUESTIONS

Three questions stakeholders should answer now.

  1. 01
    How much cash is needed before rent starts?
  2. 02
    Who absorbs further overruns?
  3. 03
    What protects collections if the tenant cannot perform?

WHAT TO WATCH

What to watch next

First rent commencement, completed halls and updated construction spending.

SOURCES

Reporting and primary materials.

Premia’s analysis reflects information available as of the publication date. Reported facts are attributed to the linked sources; the Premia View and decision questions are our analysis.

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