Stages exist because certainty arrives late
At the moment an architect is appointed, almost nothing is known. The brief will change. The site will reveal constraints. The budget will move once a cost consultant gets involved. Statutory requirements will shape the massing in ways nobody has modelled. Quoting a single fee for the whole journey requires the practice to price all of that uncertainty at the point where it is least understood.
Stage-wise proposals solve this the way the profession has always solved it, provided the stages are actually written down with their deliverables and their fees. The client can appoint progressively, which lowers their risk and makes the first commitment easier. The practice never works more than one stage ahead of its fee. And a project that stalls between stages stops cleanly rather than leaving a studio carrying unbilled work.
