This study discusses how the existing primary and middle school buildings can be adapted to the new needs emerging in the Covid-19 process. The three levels of adaptation are defined as follows: Building envelope-outdoor space relationship, plan layout-function relationship, and furniture relocation. In the scope of this study, five selected school plans were evaluated in the context of flexibility in the plan layout-function relationship. In this study, the concept of “adaptation” is considered as a design approach at the early design phase and/or intervention to respond to a new need in the life cycle of the building.