The subject of the contract is to prepare, on the basis of the program and spatial concept as well as the functional and utility program, design documentation for the task entitled "Expansion of Opera Nova by the so-called 4th circle and multi-storey car park to improve and extend its functionality. " The contract also covers exercising author's supervision.

The investment consists of two buildings that can be implemented in two independent stages. The first stage is the so-called The 4th circle of the Opera, which is functionally and functionally connected to the main building.

The second stage is a two-level underground garage with a town square in its upper part. The garage is available from the main building and from the 4th circle, it can also operate independently.