This article defends grounded normative theory (GNT) as a more appropriate methodology to tackle questions of territorial justice in settler states over the dominant approach in territorial rights theory. I contrast the central aims and methodological commitments of territory theories and GNT: the former are engaged in an ideal, conceptual project primarily directed at other liberals, while the latter is oriented towards addressing injustices through deep engagement with the narratives and power relations that normalize them. I then outline three limitations of the territorial rehabilitation project undertaken by territory theorists that result from their failure to engage the robust critical and empirical literatures on settler colonialism. Finally, I sketch how GNT can reorient the territorial rehabilitation project towards decolonization.