The old Saint Mary School in Greektown has been vacant for years, but not for long.
Jack Entertainment, the company that owns Greektown Casino, will be moving their headquarters into the building.
"We want to be here close to the energy of our property. Closer to the energy of Greektown," said Matt Cullen, CEO of Jack Entertainment, said.
The building opened in 1868 and served many purposes.
But for the past 10 years, it has sat vacant, waiting for another transformation.
"Been empty for a long time. Be able to come back, $7 million investment and really transform it into that's going to be relevant well into to future."
Once construction is complete, the company is looking to move up to 150 administrative employees into the building.
"Keep all the excitement and historic piece of them but add a little new energy and vitality to make it work for today's work environment."
With an office full of people, many restaurants will looks forward to feed those employees during lunchtime.
"I can assure you we will be here often eating, so it will be great."
They plan to add retail space on the first floor, adding value from an economic standup point.
"Building on all the energy. The restaurateurs have been here for some long. Greektown is such an historic neighborhood, now to bring new energy and vitality and build on that, lot of fun."
Construction is expected to be complete by the end of the year.