Question juridique clé
Whether the parties concluded an architectural contract with the claimed fee arrangement
Solution extraite
The alleged agreement was not proven; the Federal Court found no basis to disturb the cantonal court's assessment on this point.
Motifs extraits
The challenge was largely directed against the lower court's appraisal of evidence and post-contract conduct, which is not reviewable in appeal; the lower court could also infer from the correspondence that any fee entitlement was to arise only upon sale of the parcel and project.