Umm al-Surab, located near modern-day Mafraq in northern Jordan, was the focus of a building archaeology project carried out by the University of Siena, Italy, between 2009 and 2012. This article discusses the primary results obtained from that project—in particular, the research on the church of Saints Sergius and Bacchus and another complex in the southeastern corner of the archaeological area. The methodologies adopted are explored, as well as the results anticipated from the development of this type of research: the creation of an atlas of construction techniques for the southern Hauran and the development of a non-destructive, and therefore “sustainable,” investigation methodology.

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