The new store, which is the 92nd Billa unit in Bulgaria, covers a total area of 1,833 square metres (sq m), of which 900 sq m comprise retail area, Billa Bulgaria said in a press release.
In line with its long-term energy efficiency strategy, the retailer has introduced a lighting system using diods.
The investment in the store was not revealed.
Billa entered the Bulgarian market in 2000. It is part of Germany's REWE Group.