This thesis wishes to draw attention to the economic, social and political implications of the rise and establishment of the institutional Church in Early Christian Greece, particularly by exploring the pilgrimage, philanthropic and industrial function of the churches’ annexes. The diverse functions of churches annexes, besides reflecting a social dimension, they also reflect economic and political realities that require the development of an interdisciplinary approach, based on civil and ecclesiastical legislation, archaeology, epigraphy, history and theology, in order to explore the extent and the effects of the institutional Church’s activity in Greece. Interpreting Christian archaeology in key excavated sites of Greece by interweaving literary and material evidence both of ecclesiastical and secular origin, will help not only to ascertain how churches stood in relation to adjoining buildings combining religious and economic purposes, but also to restore to the most possible extent the Early Christian Greek urban and rural topographies.