DETROIT, MI - A 129-year-old vault beneath the Chrysler House in downtown Detroit is now the home of dPOP!, a commercial interior design firm that spun-off from Quicken Loans.

Quicken Loans founder and chairman Dan Gilbert's real estate firm counts the Chrysler House - formerly the Dime Building - among the more than 30 buildings it owns in the city's core, having acquired it for $15 million in 2011. That price tag was far less than the $40 million the previous owner spent in renovating the upper floors into Class A office space, but that didn't mean the basement, or vault, had seen any love from former landlords.

Andrew Lemanek, one of dPOP!'s team leaders, said the basement of the 23-floor Chyrsler House had been more or less neglected since the early 1980s.

"Then it became a repository for crap that building management wasn’t sure what to do with," he said. Quicken Loans had begun building out the space, but it wasn't until a few months ago that it decided to house dPOP! there, Lemanek said.

"We sifted through a lot of garbage, found a lot of really cool things that we put into the design,” he said.

The space is now home to about 60 members of dPOP!, which spun out of Quicken Loans as a commercial design firm.

According to HistoricDetroit.org, the former Dime Building, one of the city's oldest skyscrapers, was originally the home of Dime Savings Bank, a financial institution that started with a mere $60,000 in capital. That bank, as legend goes, got its moniker because one needed only 10 cents to open up an account.

dPOP! is hosting tours of their new space in the building's basement on Thursday and Friday from 8 a.m. to 9 p.m. as part of Detroit Design Festival.

David Muller is the business reporter for MLive Media Group in Detroit. Email him at dmuller@mlive.com or follow him on Twitter or Facebook.