Digitisation of working-, information- and manufacturing processes within the architectural field, has led to major changes in architectural design. Today, the opportunity of embedding computational technologies directly into the fabric of buildings has revitalised concepts of transformative architecture that change, respond and adapts to changing patterns of inhabitation. These new opportunities potentially enable inhabitants to engage in active relationships of exchange that influence their architectural environments. As a consequence, the constitution and experience of transformative architectural environments can be considered as an ongoing process of engaged encounters between the building, technology and inhabitants. The realisation of adaptive potentials are suggested to be dependent on relational conditions, which consider the qualities and processes of mutual forms of exchange unfolding in the relationship between inhabitants and transformative architecture. Designing for such conditions, challenges traditional architectural design approaches and emphasise the need for a design approach, which positions the active and engaged inhabitant as central to architectural design processes. However, the majority of projects and research within the domain of transformative architecture predominantly pursue conceptualisations of the human being that pertains to a static architectural paradigm. Architectural discourse and projects from the 1960’s and recent contributions to discourse and practice concerning transformative architecture, is examined and discussed. The analysis frames a need for conceptualisations of the inhabitant as a sensing, acting individual, in order to enhance transformative architecture with a potential to adapt to human needs, preferences and aspirations. Aiming at substantiating a dedicated people-centric design perspective, a post-dramatic performative approach is suggested as a means to understand and explore the particular conditions that unfold as relationships between inhabitants and forms of architecture with embedded computational technologies. Transferring expert-performer strategies and techniques from the discipline of performance to an architectural design context, a methodological framework is proposed. The framework operationalises relational qualities and processes as a constitutive design potential, and examines performative strategies with the aim of enhancing the design capacity of the architect. ; The advancement of digital technologies has led to significant changes in architectural design since the 1960s. Not only concerning the development of new digital design tools but also in relation to new features and properties of the built environment. Today, the opportunity to embed computational technologies directly into the fabric of buildings allow the design of architecture that changes, responds and adapts to changing patterns of inhabitation. Designing for such conditions challenges traditional architectural design approaches and emphasise the need for an approach, which positions the active and engaged inhabitant as central to architectural design processes. However, the majority of projects and research focusing on the integration of embedded computational technologies into architecture, primarily consider the human being, as an inhabitant, based on a static architectural paradigm. This thesis, positioned within the field of Adaptive Architecture, investigates how architectural design processes can be informed, taking into consideration the role and position of the inhabitant in Adaptive Architecture. To do so, the thesis explores how performative perspectives can contribute to the development of a methodological framework that allows the study of engaged encounters between inhabitants, architecture and technology. The thesis examines and discusses architectural discourse and projects concerning Adaptive Architecture from the 1960s and onwards, as well as recent contributions to the field. The review shows that a recurring ambition in the field concerns potentials that are resulting from direct mutual exchanges between the inhabitant, architecture and technology. Still, only few contributions are based on an experimental research design that in practice enable explorations into how the inhabitant co-constitutes Adaptive Architecture through their activities and actions. This discrepancy between ambition and practice, reveals a need to develop conceptualisations of the inhabitant as an acting and engaging individual, in order to realise adaptation to human needs, preferences and aspirations. Aiming to develop and offer a design perspective that encompasses such concerns, this thesis introduces an understanding of Adaptive Architecture as an architecture in-becoming. Through this lens, architecture may be considered as ongoing processes of action, exchange and engagement between the material, meaning, human and non-human. Accordingly, the character of the design process itself transitions from being compository to capacitive. In order to support such design processes, a post-dramatic performative approach is suggested as a means to understand and explore the particular conditions that unfold as relationships between inhabitants and forms of architecture with embedded computational technologies. Organised as a research-through-design process, the exploratory study in this thesis introduces and applies performance techniques to conduct participant-based explorations in three experimental environments. The results from this exploratory practice show that it is possible to unfold, describe and nuance a rich context of relational conditions that emerge as a result of engaged encounters between the participants and the particular experimental architectural environments. Based on the insights from the participant-based explorative experiments, a particular quality, the palimpsest (becoming-with-time), and four processes (becoming-withspace) are identified. The palimpsest denotes a particular relationship between time and action, and the four processes denote specific mutual exchanges between the participants and the experimental environments. These four processes: attunement, coupling, negotiation and collaboration are framed as capacitive processes. Based on the insights and results of the participant-based explorative experiments, a specific methodological framework is proposed in order to enable an opportunity to capacitate design processes, and in which the active and engaged inhabitant is taken into account. This methodological framework, Events as apparatuses for capacitation, contains three elements: observational positions, modes and structures of engagement. The application of this methodological framework in a professional context, substantiate a performance-based approach as a productive tool for the exploration of specific design objectives. Insights from practice frame two contributions to architectural design practice for capacitating informed design development of adaptive architectural environments. First, how a performative perspective on Adaptive Architecture can enable the exploration and information of adaptive architectural design in consideration of the active and engaged inhabitant. Next, how a performance-based methodology to adaptive architectural design enables the architectural researcher and practitioner to examine and develop processes and qualities of Adaptive Architecture.