Résumé : This thesis investigates the word order and adjectival agreement patterns in French-Dutch code switched DPs. It examines the predictions made by two theoretical frameworks: the Minimalist Program (MP) approach to code switching – as developed by MacSwan (1999) and applied by Cantone and MacSwan (2009) – and the Matrix Language Framework (MLF) – as developed by Myers-Scotton (1999) – and compares these predictions to data gathered in an elicitation task and a grammaticality judgment task.