This paper highlights the different interplays between structural and non-structural parts in building artifact as the result of modes of building processes and massing. The massing is understood as processes of assembling material into a body through which we identify with the building physically. In the last decade architecture discipline as the result of technological inventions has faced shifts in the design processes, massing processes and topology of the artefact. In which we witness integral coexistence between the structural and non-structural elements of building. In this paper the seeds of this integral interplay is scrutinised through the study of design and massing processes of a multi-functional pavilion prototype as a case study.