Energy efficiency was a key focus in the design of the Metalica and Legatica buildings. Both buildings use special types of glass that prevent the interior from overheating during the summer months. Combined with high-quality insulation, this results in significant energy savings. In addition, solar panels covering a large portion of the roof surfaces are used for on-site electricity generation.

Due to the abundance of greenery throughout the complex, emphasis is also placed on rainwater management and irrigation systems.

The buildings are situated along the busy Radlická Street. In the quieter northern part of the Nová Waltrovka complex, the second phase will see the construction of apartment buildings, complemented by facilities for commercial services and retail, as well as public spaces. Extensive underground parking garages have therefore been built beneath the Metalica and Legatica buildings, as well as beneath Nová Waltrovka’s central pedestrian boulevard, to ensure maximum traffic safety throughout the entire site. A unique feature of these garages is that they are not designed with horizontal levels, as is standard practice, but are built at a slight incline that follows the slope of the Radlické Valley. Approximately 30% of the parking spaces are equipped to accommodate the current trend toward electric vehicles.

Another technical highlight is the use of crushed foam glass in the subbase of the access roads instead of the usual gravel. This solution, unique in the Czech Republic, was employed to reduce the load on the structures above the basement levels.

The Metalica building has a cladding made of small bricks—the system for attaching them to the facade is another distinctive feature.

The project was to preserve small traces of the cultural heritage of the former Walter factory throughout the Nová Waltrovka site; therefore, all new buildings have an industrial feel, and the color scheme and choice of materials for the facades and interiors are adapted accordingly. For example, the entrance hall of the Metalica building features a concrete floor and exposed steel structural elements. It serves as a metaphor for a factory hall, softened by greenery. Similarly, the bricks and earthy colors of the exterior are balanced by mature greenery. Once the trees surrounding the buildings have grown larger, the overall impression will be perfect.