There’s no meaningful fixed rate for architectural renovations cost depends on design complexity, site constraints, structural work, and specification level.

What we do instead is-

Provide budget guidance early (per m² ranges and element rates)
Develop a detailed scope before pricing
Deliver a transparent, structured proposal
Accurate pricing requires developed documentation. Anything earlier is a guide only.

For premium projects, the focus should be a cost through process, not guesswork.