The massive American Express data center in downtown Minneapolis is on the market as the credit card company prepares to move out.

The multistory building has a total of 150,000 sq ft of raised floor, and its currently designed to support 5.4MW of critical power. It also includes 110,000 sq ft of office space.

American Express, which currently leases the building, is in the process of vacating it, according to a report on the area's data center market by Colliers International, which is marketing the property. The commercial real estate firm says the building has “the largest block of raised floor” in the city's central business district.

Its location, at 1001 3^rd Avenue South, is close to a major Midwestern carrier hotel called the 511 Building.

The Minneapolis-St. Paul data center market has seen a lot of data center provider activity recently, according to Colliers.

Stream Data Centers is building an 80,000 sq ft facility and ViaWest is renovating a 160,000 sq ft property in Chaska (a Minneapolis suburb). Compass Datacenters is building a 90,000 sq ft data center in Shakopee (another suburb), where CenturyLink has committed to taking 1.2MW.

DataBank bought a local company called Verispace, taking over its 10,000 sq ft data center in Minneapolis proper, added 7,500 sq ft and has plans to add another location in the region.

This influx of new space, once live, will make it hard for companies with existing data center inventory to find tenants, according to Colliers.