Every mode of relating new architecture to an existing setting, implies some kind of its interpretation. Consciously or not, i.e. conceptually articulated or architecturally expressed, all interventions to the built environment express some sort of association to its context (soclo-cultural reality and its architectural-urban expression). Even if they dont intend to, all novelties in the environment are necessarily interpreted, in everyday life, as interventions to an existing situation. Interpretation is considered as an inclusive notion referring to all modes of understanding, being inspired from, and evaluating the existing natural and built environment vis a vis an architectural intervention to it ranging from a new coat of paint to a building to the re-structure of an urban sector. Interpretation (understanding, evaluation) has to be admitted as inescapable in our encounter, collectively, with the environment we live in. It is important to examine how different modes of interpretation (visual, descriptive, socio-cultural, architectural...) relate to the reality of the existing setting as an entity. The theoretical part will attempt to clarify: * The notion of interpretation and its modes of relation to time (interpreting as understanding of the current situation, as enhancing the past or envisaging and projecting the future) * Interpretation in relation to common (collective) understanding, different kinds of analyses (historical, morphological, typological...). * The notion of change in the built environment, its perception, its conception and its evaluation within the process of urban development. * Interpretation expressed in built form (by architectural expression). Modes of interpretation, criteria, hierarchy and evaluation. * The notions of reusing, reconverting, upgrading, enchancing, rehabilitating, regenerating and restructuring the built environment.