Founded in 2004, the Berlin Metropolitan School on Linienstraße in Mitte is now Berlin's largest international school, welcoming approximately 1,000 children and students from 69 countries across all age groups. Through its comprehensive full-day program—running from 7:30 a.m. to 6 p.m.—students progress from early childhood education to university entrance qualification. The existing GDR-era prefabricated structures no longer provided sufficient space. Berlin-based architectural firm Sauerbruch Hutton was commissioned to expand the campus, beginning planning in 2014 with completion in 2020. The result is an impressive wooden addition featuring both single and double-height sections—constructed while the school remained fully operational. Thanks to extensive prefabrication, the phased construction proceeded without major disruptions. The 3,650 m² of newly added space earned the German Timber Construction Prize 2021 and an honourable mention at the Wood Design & Building Award 2021–22.

The campus comprises a long wing on the western side and two single-pitched wings flanking the north and south—together framing a spacious courtyard that serves as an outdoor gathering and recreational hub. Several compelling reasons guided the choice of wood as the primary structural material: its lightweight character allows for seamless structural integration without complications. The high degree of prefabrication enables staged assembly, minimizing on-site disruption. Beyond practicality, sustainability stands as a critical factor. For architect Sauerbruch, transitioning the construction industry from reinforced concrete to timber represents both a necessary evolution and an essential paradigm shift for our time—one the firm actively pursues across current projects.

The roof structure's defining feature is its striking geometric form: rather than following conventional roof lines, the gently cantilevered overhang extends diagonally outward, culminating in a soft, rounded crown. This design is both surprising and architecturally refined, while its copper cladding commands visual attention—its warm patina harmonizing beautifully with the existing brick exterior. Within, the spaces offer carefully calibrated environments for community gathering, quiet reflection, independent study, and collaborative work. A grand hall punctuates the scheme, accommodating diverse events and showcasing an exposed vaulted wooden structure articulated through a pentagonal geometry with opposing angled walls.

www.sauerbruchhutton.com

Photography Credits:

Jan Bitter
www.janbitter.de

(Published in CUBE Berlin 02|22)