The diner chain will open inside a large storefront in a building on Northern Boulevard, which is still under construction. View Full Caption First Class Management

JACKSON HEIGHTS — Ready your waistlines: Denny's is cooking up the chain's first location in the borough inside a new office building on Northern Boulevard, according to the chain.

The restaurant — home of the Grand, All-American, Lumberjack and French Toast Slam breakfasts, among other items — is set to take over a large corner storefront in the building at 87th Street, which is still under construction, according to First Class Management's website.

A spokesman for Denny's, Seth Grugle, said the restaurant is in development, but there wasn't a timeline for it's completion.

The opening "likely won’t be in 2014," he said.

A spokesman for Denny's told DNAinfo New York last June that the company was looking at spaces in the borough, and singled out Jackson Heights.

A representative from a business improvement district in Jamaica said the restaurant was also looking to open up in that neighborhood, but Grugle said the company didn't have any plans there.

The Northern Boulevard location, which was first reported by the Queens Courier, would be the first in Queens.

The management company is still looking to lease another 5,000-square-foot space in the building, which also has underground parking and will include the Denny's, a Red Mango frozen yogurt shop, a Dunkin Donuts and a childcare center.

The cheap-eats spot also plans to open locations in lower Manhattan and East New York, Brooklyn, despite local opposition including settling a $10 million lawsuit with residents of the Manhattan building it will move to.