This study examines the relationship between graphic design and architecture, particularly focusing on the creation of a dynamic visual identity for Casa da Arquitectura, in Matosinhos, Portugal. It emphasizes the correlation between the processes of architecture and graphic design, highlighting the essential perspective needed for contextualizing visual identity within architectural projects. This research, part of a masters degree between the years of 2021 and 2023, delves into the specific expressions of visual groups, analyzing the decoding of symbols, the critical analysis and evaluation of solutions, and the proactive involvement in both the process and implementation stages. Furthermore, it underscores the importance of dialogue using a common language, references, and a shared understanding of the public, social, political, and cultural dimensions. This parallelism and intersection between architecture and graphic design are crucial for sustaining a comprehensive approach to visual identity in the architectural realm. The relationship between these scientific fields has been marked by parallels and competitions that have been marked throughout History. The pertinence for this study was to highlight, in the case study of Casa da Arquitectura, the common ground between graphic design and architecture. The achieved results, obtained through research process, visual analysis, manual mark making, experimentation with visual groups, and manipulation of contrasts and proportions show a deep intersection shared in the definition, process, tools, objectives. The methodology was project based, with a close contact with the client and its audience.