The architectural design responds to the context of the place and works with minimal artistic means that allow purging of the existing shapes and relations and finding new interconnection views and possibilities arising from the environment of the embankment. The six vaults on the Rašín Embankment are built following the almost circular arc of the upper part of the existing openings. The design itself is based on a tiny intervention, which takes more than it adds and brings the existing quality back in a contemporary way, creating a unique situation and opportunity. The former stretch metal curtain wall and stone constructions built into the original bridge arches of the riverfront wall were knocked down and replaced with large-format glazed round windows that open by diagonal rotation inside the frame. The entrance portals are designed as atypical steel frames with dilated elliptic glass weighing 1–1.5t. The stone arched linings of the existing portals are completed with stone stepped volumes following the former steps allusion, which hide the installation shaft, air-conditioning vent and anti-flood control elements. The elliptical pivoting windows made of organic glass 7cm thick and 5.5m in diameter weigh approximately 2.5t. Each has a unique shape and, due to their size exceeding the standard glazing, these are probably the largest pivot windows in the world.

During the reconstruction, all built-in elements, including floors, were demolished and built using a method of insertion of the new building into the original space. Flood control reinforced base slabs with pumping sumps were made, water infiltration was repaired and walls were insulated and finished with torcreted concrete on load-bearing reinforcements, consolidating the geometry of rolled vaults. The built-in partitions were concreted as monolithic reinforced concrete ones with inserted installations. The design and materials of the individual elements of the vaults are unified for all types of spaces. The surfaces of the walls and ceilings are designed as sandblasted concrete with a cast concrete floor and a cast monolithic staircase. The hatches and doors are finished with surfaces corresponding to the adjoining surfaces of the walls and floors.

The lighting is designed using light ramps in the public toilets as indirect lighting embedded in a steel wall with light reflection from the ceiling.