This project seeks to give new purpose to the Centraal Beheer building in Apeldoorn, designed by Herman Hertzberger, by introducing a new Montessori Education program, containing a Primary School and Secondary School. Through interventions this design aims to redefine the spatial structure of Centraal Beheer, to create a well functioning environment for the new program, while keeping in mind the ideology of Herman Hertzberger. By giving the need of purpose the highest standard within the Heritage framework I investigate the adaptability of this Structuralist icon to contemporary demands on both spatial and technological development. This means necessary changes to the building are made, however, the changes aim to incorporate the ideology of Herman Hertzberger regarding the Centraal Beheer building.