Obermeyer Helika leads revitalization of Prague’s Quadrio shopping centre

The Quadrio shopping centre in Prague 1 has recently completed a comprehensive revitalization project, which included enhancing the entrance from the Národní třída metro station, expanding the gastronomic zone, and modernizing the air conditioning system. The design and construction consulting firm Obermeyer Helika served as the general designer, overseeing project documentation and author supervision. Notably, the construction was executed while the centre remained fully operational, with all public areas now accessible to visitors.

“This project presented significant technical challenges, particularly due to the necessity of keeping the building functional throughout the construction modifications,” explained Ing. Martin Schejbal, senior project engineer at Obermeyer Helika. “Coordinating work in the fully utilized installation shafts and timing the ventilation system replacement required meticulous planning.” Schejbal highlighted the innovative use of custom-made one-meter-long core drill bits for drilling in tight spaces and the relocation of 2.5-tonne dry coolers on the roof for new fan installations.

In response to the increasing demand for quality fast food, the revitalization has introduced two new gastronomic units within the food court. Additionally, the public arcade in the Delmart and Vapiano area has been expanded, utilizing high-quality premium materials to enhance the interior design and detail.

To meet the heightened demands of the new establishments, the air handling system has been significantly upgraded. The existing exhaust air extraction system was enhanced, ensuring optimal indoor climate control throughout the arcade. The previous exhaust fan, capable of extracting 35,500 cubic meters per hour, has been replaced with five new fans. This upgrade involved the challenging task of moving two 2,500 kg dry coolers on the roof. “This project required meticulous preparation and detailed scheduling, with each step coordinated to the minute,” Schejbal noted, adding that the improvements have led to substantial energy savings.

Furthermore, the entrance area from the Národní metro station lobby has undergone a complete transformation, with three new, larger modern carousel doors replacing the existing two. This upgrade ensures a smoother passage for visitors entering the shopping centre.