US data center firm CoreSite has topped out its latest facility in Denver, Colorado.

The American Tower-owned company this week announced the topping out of its DE3 facility in Denver.

Ground was broken on the 180,000 sq ft (16,720 sqm) building earlier this year and it set to launch next year. The company said it was the first purpose-built data center in Denver in more than 20 years.

“At CoreSite, we are committed to supporting the cities and communities where we operate. Our nearly 190 Denver-based employees are beyond excited to further invest in their hometown,” said Adam Post, SVP of corporate development and finance at CoreSite. “On a citywide scale, DE3 will provide customers with the interconnection and improved computing performance needed to thrive, strengthening Denver’s reputation as a tech hub and driving economic growth.”

CoreSite purchased the 13.6-acre property in December 2022 for $33.15 million, according to public records. The site previously operated as a concrete manufacturing facility for 70 years.

The company first announced plans for a new Denver campus in late 2023. At the time, the company said it had received conceptual approval for a three-building data center campus development of approximately 600,000 sq ft (55,740 sqm) and 60MW of capacity.

To be constructed on 15 acres at 4900/5050 N. Race Street, the first of three facilities will offer 18MW across three stories. Timelines were not shared.

Stonepeak, which owns a stake in CoreSite, has partnered with the data center company in a joint venture to develop the first DE3 facility. The companies said it would be constructed on a modular basis over three 6MW phases, for a total estimated development cost of more than $250m.

CoreSite operates 30 facilities across 11 US markets. It has two data centers in Denver totaling 35,000 sq ft (3,250 sqm); DE1 at 910 15th Street, and DE2 at 639 East 18th Avenue.