People who live and work in downtown Baton Rouge will have to wait a little longer for a Matherne’s supermarket to open.

David Weinstein, one of the owners and developers of 440 on Third, the mixed-use building at Third and Main streets that will be anchored by Matherne’s, said the decision was made to push back the opening to early December. The store was originally set to open in October or November.

“There’s going to be a lot of construction going on around Matherne’s so the decision was made to push back the opening until things were cleaner,” Weinstein said. The 65 apartments in 440 on Third will be open to residents in January and USAgencies, which will take up two stories of the building as the main office tenant, will move in by Feb. 1, Weinstein said.

Rather than have a grocery store opening up with heavy equipment in the parking lot, the project was delayed.

“There was no real reason to expedite everything,” said Dyke Nelson, who is the co-owner and developer. “We’re still operating under an aggressive schedule.”

Tony Matherne Jr., a co-owner of the grocery store, said the slight delay is part of the process. “That’s how it goes with construction,” he said.

Matherne’s will take up 15,000 square feet of 440 on Third. It will be the first full-service grocery store downtown in nearly 50 years.

Davis Rhorer, executive director of the Downtown Development District, announced that the Matherne’s opening would be delayed during a speech to the Rotary Club of Baton Rouge Wednesday.

Rhorer gave updates on a variety of construction projects going on downtown. The Jolie Pearl Oyster Bar will open Oct. 16 at 315 North Blvd. Also on North Boulevard, the 89-room Holiday Inn Express is set to open in March. Downtown’s fifth hotel is going into the building that had been occupied by the Baton Rouge Savings & Loan.

A ceremonial groundbreaking for the redevelopment of the Commerce Building is set for later in the fall, Rhorer said. There will be 93 apartments in the building, ranging from studio units to three-bedroom models. There also will be a rooftop restaurant, a fitness center, a third-floor private events deck and a rooftop infinity edge pool. Work on the Commerce Building should be completed by late 2015-early 2016.

Follow Timothy Boone on Twitter, @TCB_TheAdvocate.