Comprehensive school in Cologne:
Building in a construction team

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Ossendorf Comprehensive School
in Cologne

The new comprehensive school in Cologne Ossendorf will be the first municipal building in Cologne to be constructed using a hybrid timber construction method. As one of the largest hybrid timber schools in Europe, it will create 1,265 additional school places. The school was planned as an accelerated construction project – a pilot project in North Rhine-Westphalia. The new school building is urgently needed, which is why rapid completion was one of the central goals from the outset. Construction began in October 2023, and the building is scheduled to be handed over at the start of the school year in 2026.

Ossendorf Comprehensive School
at a glance

School in record time
Efficient construction in the construction team

The building’s load-bearing structure is made of solid wood. Thanks to the high degree of prefabrication, the wooden components are delivered to the construction site ready-made to fit, which significantly reduces construction time. But it is not only the construction method that contributes to efficiency – building as a team is another key factor.By avoiding rigid process boundaries, flexibility and open communication are promoted throughout the entire project.

Working together as a construction team opens up enormous potential for future construction projects. Especially in circular projects, it is crucial to connect all parties involved at an early stage and facilitate continuous exchange, as subsequent dismantling must be considered during the planning phase. The construction team thus forms the basis for an efficient construction process that allows for innovation and optimisation at the same time.

Construction project Ossendorf Comprehensive School,
Fitzmauricestraße,
50829 Cologne
Construction Hybrid timber construction
Completion 2026
Total area 33.300 m2 (Neubau)
Volume of wooden components 3700 m3 X-LAM und Glulam
Stored CO2
in the Construction		 2.808 tCO2
Avoided CO2
in the Construction		 3.370 tCO2
Speed of regrowth in
German forests		 111 minutes
Building owner City of Cologne,
www.stadt-koeln.de
Architect Molestina Architekten, Cologne
www.molestina.de
Engineering office Assmann Beraten + Planen, Berlin,
www.assmann.info
Manufacture, delivery and assembly of wooden elements DERIX-Gruppe

The advantages of wood
at Ossendorf Comprehensive School

The load-bearing structure made of solid wood has an extremely high and precise degree of prefabrication. The finished wooden components are delivered directly to the construction site, which significantly reduces the overall construction time compared to conventional construction methods. The school is a showcase project for accelerated construction. Construction began in 2023 and will be completed in 2026. The school impressively demonstrates how urgently needed learning space can be created in a very short time using hybrid timber construction.

Model views

The model views of the Ossendorf Comprehensive School show a complete representation of the structural details of the building.
They illustrate the architectural and structural elements in their entirety and make the structure of the school building comprehensible.

Full view CAD model

 Detailed views of junction and pull/push anchors of the walls

Further
topics

Customised glulam

Our glued laminated timber (glulam) can be used to build customised structures, as we can produce the components in almost any shape and size – entirely according to your wishes. The kiln-dried timber boards are joined together by finger-jointing to form long slats. Discover our wide range of glulam.

Solid and versatile element construction

Whether roof, ceiling or wall – X-LAM can be used in a variety of ways. Our X-LAM element construction gives you great freedom in building design. The flexible cross-laminated timber elements are customised for you and are quick and easy to assemble.

Schools made of wood

Find out more about building schools from wood.

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