The second largest Orthodox temple in Serbia, which is located in the Park Svetog Save (St. Sava Park) next to the Nemanjića Boulevard, is dedicated to the Roman Emperor Constantine and his mother Helena. The building construction began in 1999, according to the designs of the Niš architect Jovan Mandić, who won first prize at the tender for this edifice.

The church is an elongated building with one nave with the cupola, and a rectangular space divided into traves. The east trave belongs to the altar and contains three apses; above the central trave is the cupola on a pronounced square base and octagonal drum, ending in a dome; the trave in the west is covered with a semi-cylindrical vault with a gallery on top, serving as a narthex. On the west side, along the narthex sides, there are two bell towers with an open porch between them. The space of the crypt is widened and adapted for contemporary use.

The elements of medieval tradition are unified and shaped in a contemporary manner, with modern architectonic lines. The church has elements of the architectonic school of medieval Rascia (Raška), with Romanesque elements and two bell towers. Flat façade surfaces, a geometrically simple architectonic form, unassertive windows and door openings, make this church building appear monumental, in the present and in the future.