A groundbreaking ceremony for the Onyx Residences apartment complex in downtown Baton Rouge will be held at 10 a.m. Sept. 15.

The ceremony will be at the corner of Third and Convention streets, the site of the 28-unit complex. The Onyx Residences will be made up of one- and two-bedroom apartments, over about 5,600 square feet of commercial space. The units will feature amenities such as high-speed Internet, stainless steel appliances and free DirectTV.

The property is set to open in fall 2015.

Commercial Properties Realty Trust is redeveloping the space. Work on the project started in October, but was put on hold for several months to accommodate filming of “The Fantastic Four” movie, which is set for release in June 2015.