This is the first of four volumes that present the results from the University of Cincinnati's archaeological excavations of the Porta Stabia neighborhood at Pompeii. These excavations targeted two town blocks on either side of the via Stabiana (insulae VIII.7 and I.1), which comprised modest houses, shops, workshops, food and drink outlets, and hospitality buildings. The present volume describes and documents the phased, structural development of this neighborhood over several centuries. The earliest discernible activity here dates to the 6th century BCE, with the insulae taking their definitive shape only in the 2nd century BCE. It is from this time that production activities dominate the neighborhood, only to be wholly replaced by retail-oriented street-fronts from the early 1st century CE. Underpinning this narrative of urban development is a focus on the social and structural making of the Porta Stabia neighborhood, along with an interest in both the micro- (urban site formation processes) and macro-contextualization of the site (setting the results within a larger historic and urban framework).