Microsoft Corp. is expected to move its local offices from Southfield to downtown Detroit in a Dan Gilbert-owned building, according to multiple real estate sources.

It's not known where specifically downtown Microsoft will move, but an announcement is imminent.

Some have said Gilbert plans on making space in the former Compuware Corp. headquarters that he owns along with Detroit-based Meridian Health.

The Redmond, Wash.-based software giant currently has about 53,000 square feet in the Southfield Town Center, a 2.2-million-square-foot office complex north of 10 Mile Road between M-10 and Evergreen Road, according to CoStar Group Inc., a Washington, D.C.-based real estate information service.

It's also not known whether Microsoft will retain any space in the Southfield Town Center, which New York City-based 601W Cos. purchased in 2014 for $177.5 million.

Gilbert, speaking with Bloomberg TV anchor Betty Liu Sunday afternoon at the North American International Auto Show, said he plans to announce a new 50,000-square-foot tenant for downtown in about a week.

It's widely expected that tenant is Microsoft.

"We cannot comment on rumors and speculation," Whitney Eichinger, director of communications for Gilbert's Detroit-based real estate company Bedrock LLC, said in a Sunday afternoon email.

In a November interview with Crain's, Gilbert said Microsoft "could be" exploring a move downtown.

A year ago, Gilbert's Quicken Loans Inc. hired John Fikany, formerly Microsoft's local sales chief as its vice president of the Enterprise Sales and Partner Group, as Quicken's vice president of strategy development.

Gilbert's 45-minute conversation with Liu also touched on Detroit development, President-elect Donald Trump — whom Gilbert said should "stop the Twitter thing" — and employment in the city, among other issues. He also said he expected multiple large buildings to start construction in the next 18 months.

Microsoft would be the latest major company to establish a presence in downtown Detroit, with Fifth Third Bank and auto supplier Adient taking space in the city's central core recently. Ally Financial also took a large amount of space in the former One Detroit Center skyscraper when Gilbert purchased it.

The founder and chairman of Quicken Loans and Rock Ventures LLC, Gilbert has purchased more than 95 properties — buildings and parking decks, primarily — in and around downtown Detroit totaling more than 15 million square feet.