CoreSite DE3 / Race Street campus: capacity plans meet the delivery test
New research published October 8, 2026 · earlier milestones dated in profile · Sources reviewed: 2026-10-08
Published 2026-10-08. Historical events retain their source dates; this publication does not imply a new project milestone.
Company reported topping out October 2025; May 2026 independent reporting documents construction; no commissioning verified.
Investor implications · Our analysis
DCD reports expected 85% Stonepeak and 15% CoreSite equity in the announced development JV, estimated first-building cost over $250 million, delivered in three 6 MW phases. These are disclosed deal structure and estimates, not independently verified funding close or actual spend. AMT economic exposure is through CoreSite; site-level earnings undisclosed. Denver’s up-to-$9 million incentive proposal is tabled, not verified awarded.
What to watch next
First-building utility/customer acceptance; separate approvals for future buildings
Sources and verification
4 readable source documents including government evidence. Government scope and announcement-based reporting limitations disclosed; no inaccessible underlying PDF counted.
- City and County of Denver · Publication date not established
File 24-1084, created August 16, 2024, proposes CoreSite LP revenue-return agreement up to $9 million through June 30, 2039 (OEDEV-202475137). Status tabled; final action blank. Postponements August 28 and October 2 do not establish approved incentives or construction authorization.
- CoreSite · 2025-10-06
Company reports topping out DE3 at 4900 Race Street, a planned 180,000-square-foot facility targeting 2026 availability. Broader campus approximately 600,000 square feet / 60 critical MW is a future envelope. First building is separate from downtown DE1/DE2.
- DatacenterDynamics · 2024-08-01
Reports announced Stonepeak/CoreSite JV: expected 85%/15% equity, first DE3 facility 18 MW in three 6 MW phases, estimated development cost over $250 million. Based substantially on issuer announcement; not independent verification of financing close, spend or current ownership changes.
- Denver Gazette · 2026-05-19
Original council reporting, updated May 20, says existing DE3 construction is unaffected by the new moratorium while future two buildings face regulations. Covers community objections. Caption dimensions differ from company figures; neither implies delivered IT capacity. No approved $9 million incentive established.
Page Update History
— Added publisher attribution, AI disclosure and this update-history section. This presentation update does not represent a new factual source review.
Earlier publication and source-review dates remain as stated on this page. This is the first entry in this standardized log; it is not a reconstruction of earlier revisions.
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