Firm： CHYBIK + KRISTOF

Type： Commercial › Office Retail Cultural › Observation Tower Hospitality + Sport › Hotel Restaurant Residential › Multi Unit Housing

STATUS： Concept

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SIZE： 1,000,000 +

BUDGET： Undisclosed

CHYBIK + KRISTOF unveil plans for the construction of Ostrava Tower, a 235 metre-tall and 98,000m2 multipurpose skyscraper located in the heart of Ostrava’s city center. Initiated by the architects in 2019, their latest urban infill project addresses the need to reconsider the typology of the skyscraper into a new functional entity responsive to the contemporary social needs, and in this case, the rehabilitation and reactivation of the post-industrial town of Ostrava

Over the course of the last three decades, Ostrava has transitioned from a coal-mining and metallurgical city to a service and information-driven industry requiring the urban landscape to transition and adapt to this new rapidly growing cultural economy. With its rich history deeply affected by its traditional infrastructure, the capital of the Moravian-Silesian region, on the border of Poland has a metropolitan area population of almost one million inhabitants and is the third largest city in the Czech Republic. The rapid development of the former industrial sites to cultural and residential buildings, initiated by both public and private investors points to the future city of Ostrava. These include a new concert hall by Steven Holl Architects, museums, university campuses, galleries, as well as residential projects to meet the population’s needs.

With its design for Ostrava Tower, CHK respond to the rejuvenation of the city and its social needs. The

56-storey skyscraper underlines the studio’s dedication to rehabilitate the city center and activate public space within the tower and its immediate environment. The iconic X-liked shaped structure and with it, its diagonal geometry, unifies the entire building, allowing its alternating levels of publicly accessible functions and private facilities to act in harmony. Shifted on its own axis, the design of the building composed of a complex set of alternating walls and its glass façade, supports the multipurpose functions and enables the residential units’ stunning vistas of the city and the surrounding landscape, while also providing privacy and substantial living space.

The shape of the building expands out, offering expansive views with its sky garden, while simultaneously level zero connects the lobby to its new square, expanding and activating public space. The new plaza is designed in a way that it correlates to the scale and purpose of the inside spaces. Purposely, the architects designed the two widest spaces (the lobby and sky garden) to be used as recreational areas, inviting the public to activate the building’s public space. Dispersed throughout Ostrava Tower, additional public spaces include; offices, a congress centre, retail services and a hotel. The panoramic rooftop with a café, a restaurant and bar are open to the general public.

Fusing design and Ostrava’s demand for new social infrastructure, CHK revive and foster the significance of the skyscraper. Cofounding architect Michal Kristof states:

“Rethinking the typology of the skyscraper and its function to serve the public and activate the urban environment, one of our core missions was to create a positive social impact in the heart of Ostrava. The studio’s intention was to create a simple but powerful form that acts as a beacon into the city center.”

Situated on a vast piece of land that was once created by previously resolving a large-scale traffic artery and its links to the city, the tower acts as an entry point and hub for business, culture and leisure in Ostrava.

Connected to a bus terminal and situated at the foot of a bridge, the new design expands the ground floor plaza, shaping itself to increase the amount of public space available on the site. The pedestrian entry is entirely barrier-free, accessible from all sides and visible from all angles, and becomes a major point of attraction, in turn redefining the flow of the abandoned territory into a linked urban portion of the city centre.

Due to be completed in 2027, Ostrava Tower echoes the town’s industrial heritage and inspired utilitarian architecture. This project by CHK underlines the importance to rethink and adapt the typology of the skyscraper as a multifunctional entity, transforming the design into a dynamic social hub, responsive to the contemporary social needs and the rehabilitation of developing urban cultural economies.

Year: 2019—2021

Type: public space, offices, residential, hotel, spa, congress, retail

Size: 98000 m2

Status: ongoing

Co-author: Anarchitekt - Jiří Soukup

Egineering: Bollinger+Grohmann, VIN Consult, K4 Architects & Engineers, INKOS-OSTRAVA

Facade: MGS Group

Transportation: Atelier Dua

Geology: Baugrund Dresden

Vertical Transportation: Schindler, KONE

Lighting: ATELIER DEK

Development & Marketing Strategy: Henceforth

Marketing & Media: SILVER B.C.

Illustrations: Alexey Klyuykov

Photo: Alex Shoots Buildings

Visualization: Igor Brozyna - PLACES studio, NORVISKA, Dousek Zaborsky

Team: Ondřej Chybík, Michal Krištof, Martin Křivánek, Martin Žatečka, Vadim Shaptala, Martin Holý, Denisa Annová, Ivo Stejskal, Ondřej Švancara, Benjamin Daniels, Emanuele Faggion, Jan Šefl, Natália Korpášová, Gabriela Voláková, Roman Chervonnyy, Sophia Tligui, Marek Frait, Anna Serysheva