This paper explores the dynamics of professional identity work and negotiation in the profession of architecture, drawing on preliminary findings from a twelve-month study of an Australian architecture studio committed to enacting change in the wider profession. Adopting a posthumanist practice perspective grounded in relational ontology and performative epistemology, we challenge traditional discursive methodologies by highlighting the role of sociomaterial practices in shaping identities within architectural studios. The emergent and qualitative methodology includes longitudinal observations of design projects and in-depth interviews with key stakeholders, offering insights into the changing practices of professional identity work and processes of how identity tensions may be negotiated. This paper sheds light on the interplay of multiple, sometimes conflicting, identities and how individuals and the architecture studio as a collective seek to navigate these tensions. Contributing to the discourse on identity and practice theory, the findings provide a nuanced understanding of identity work in architecture, underscoring its significance in managing professional change and highlighting practice theories' relevance in examining professional identity change in creative and cultural professions.