The Tobias School provides primary and secondary education for students with additional care needs. Following a life-cycle-extending renovation, the renewed school was completed in early 2023.
The school is housed in a listed building dating from 1918. Over time, incremental modifications were made to accommodate changing functional demands, compromising the spatial clarity and architectural identity of the original design. At the same time, the building had become too small and outdated to support contemporary educational methods and a growing number of students, particularly those requiring additional support.
The primary intervention focused on restoring the original spatial qualities of the building. Later additions — such as suspended ceilings in the central hall and theater — were removed to re-establish the historic proportions and improve spatial continuity. New interventions are clearly distinguishable through contemporary material use, creating a legible dialogue between old and new.
Additional space was created by transforming the attic, previously used for storage, into ateliers, offices, and classrooms. Accessibility was significantly improved with the introduction of an elevator, making the building fully inclusive.
The theater hall was restored to its original roof geometry and equipped with a new anthroposophical stage. It now functions as a central identity space for both the school and the surrounding community.
The renovation upgrades the building to meet Frisse Scholen Class B standards and achieves near energy-neutral performance (BENG). Thermal performance was improved by insulating the façade and roof from the interior and installing secondary glazing.
To balance airtightness with indoor air quality, a demand-controlled balanced ventilation system with heat recovery and CO₂ monitoring was implemented. This ensures a healthy indoor climate while minimizing energy loss.
Energy demand is further reduced through dynamic LED lighting, limiting consumption to approximately 6 W/m² while enhancing visual comfort. The building operates fully electric (gas-free), using an underground thermal energy storage system combined with a heat pump.
Biobased materials were prioritized throughout the project. Timber elements are FSC-certified and designed with dry connections where possible, supporting future adaptability and circular use. This approach extends to the outdoor space: the schoolyard is constructed entirely from reclaimed materials and locally sourced wood from Zeist forests.