DETROIT – Online retail mortgage lender Quicken Loans is keeping to its promise to help Detroit’s revitalization by closing on the purchase of a 14-story, 505,000-square-foot office building downtown, the company said.

Quicken founder and chairman Dan Gilbert said in a statement last week that about 4,000 of the company’s employees will work downtown when the company moves into Chase Tower and the recently acquired Madison Theatre Building.

Quicken moved its corporate headquarters and 1,700 workers to the Compuware building near Campus Martius downtown last year. That building, the Chase Tower and Madison building are within walking distance of one another.

Gilbert envisions an intriguing and electrifying urban business district, “one where high-tech, web-based, entrepreneurial and service companies will flourish, attract and retain the younger generations who are increasingly responsible for creating and operating the most lively and impactful businesses in our entire economy.”

Gilbert, who also owns the NBA’s Cleveland Cavaliers, called the section of Woodward Avenue adjacent to Campus Martius “Webward Avenue” and wants other companies to join Quicken and software developer Compuware Corp. downtown.

“That’s our thing,” he told AP. “Those dozers out there in the suburbs – I think it’s time they wake up. They are going to lose opportunities in their own back yard.”