The new restaurants and bar atop the Renaissance Center in downtown Detroit are nearly ready for their Monday debut.

Named the Highlands, the concepts going into the 71st and 72nd floors of the state's tallest building have been planned since the start of 2018. Construction snags delayed completion at the General Motors Co.-owned skyscraper, but chef Shawn McClain and his restaurant group have delivered it a new crown jewel.

McClain, a James Beard Award winner, and husband-and-wife partners Sarah Camarota and Richard Camarota had a crash course in the logistic challenges of activating a space 72 floors from the ground. They believe they've developed a business that will breathe new life into the space, and more importantly, will be sustainable.

"It's a complicated space," McClain said. "I think we've stayed true to where we started the planning — not narrow and focused on just one thing, but creating something that's more dynamic."

Highlands replaces Coach Insignia, which opened in 2004 as a swanky restaurant with a revolving dining room that did not survive the Highlands' redesign. Coach Insignia closed in early 2017. The new restaurant's model hinges on appealing to a wider audience — casual diners, sports fans, foodies as well as fine diners. Owners aim to make it a place where people go more than once in a blue moon.

"Taking the traditional, stuffy top-of-the tower and completely turning it on its head," Sarah Camarota said.

The business has four prongs:

Highlands Steakhouse: A steakhouse with an "epic collection" of wine and "backdrop of blazing stoves." The sommelier is Alexandra Martin.

A steakhouse with an "epic collection" of wine and "backdrop of blazing stoves." The sommelier is Alexandra Martin. Hearth 71 : A "funky, casual" restaurant with locally sourced dishes and local microbrews

: A "funky, casual" restaurant with locally sourced dishes and local microbrews High Bar : A bar and lounge with cocktails from mixologist Tony Abou-Ganim

: A bar and lounge with cocktails from mixologist Tony Abou-Ganim Highland Events: A private event space filled with "highly curated" events

Around 75 full- and part-time employees will work at the restaurants and bar, which will encompass 23,000 square feet, including around 8,000 square feet added to the building with the expansion of the 72nd floor.

The space is being leased for a minimum of 10 years, McClain said, but the partners are "looking at this as a long-term relationship with GM and the building." They declined to say how much money was invested in the space or offer further details of their agreement with GM.

The general contractor was Sterling Heights-based Roncelli Inc. Southfield-based Harvey Ellis Devereaux Corp. did architecture work, while the designer was New York-based Rockwell Group.

The steakhouse menu includes small plates such as grilled artichoke hearts ($18) and charred Spanish octopus ($19); a salad with ingredients sourced from Detroit nonprofit RecoveryPark ($15); large plates of sea scallops ($41) and steelhead trout ($31); and meats ranging from a 16-ounce New York strip ($56) to a 22-ounce Wagyu New York Strip ($115).

The menu boasts a full wine and spirits program, as well as beers on tap. A glass of Remy Martin XO runs $30, a pour of New York Malmsey Madeira is $22 and a draft pint of beer starts at $8 for a blonde ale from Arbor Brewing Co.

McClain said the restaurant's stock of spirits will be "a little lighter than we'd like" due to ongoing delivery woes at Republic National Distributing Co.

On Saturday, the restaurant crews were putting the finishing touches on the interior for Monday's debut — a long time coming for McClain and his partners.

"I think if this was on the first floor, we probably would have been open a year ago," McClain sad.

Hours of operation are 5-10 p.m. Monday-Thursday and 5-10:30 p.m. Friday and Saturday. Sunday hours will start Dec. 29, 5-10 p.m.

Editor's note: This story has been updated to correct the name of the project architect, Southfield-based Harley Ellis Devereaux Corp., and the headquarters city for Rockwell Group.