Disproportionately to its rich history and the abundant testimonies, the academic investigation and documented recording of modern Piraeus’ characteristics are limited. This lack, combined with the author’s particular sensitivity towards her place of origin, constituted the incentive for her study of the city’s history from a spatial perspective. The results of this decade-long investigation are presented in this volume and concern not only the operational town-building and town-planning evolution of the modern city, but also its architectural identity, from its first steps in 1834 through to 1912, a milestone in terms of the completion of today’s historical centre. The field of study was inevitably broadened following the indexing and interpretation of the components that had a catalytic effect on the production of the manmade environment and which determined – to a greater or lesser extent – its development and organization.