1. Repetition: a relative criterion
A property dealer activity in principle requires repeated purchases and resales. But repetition is not an absolute condition: the Conseil d'État accepts that a single large-scale transaction may suffice where the speculative intent is established at the time of acquisition (CE 12 June 1992, no. 67758 and 67759). The case law assesses the whole in light of the number of transactions, their frequency, the financial volumes involved, the resources deployed and, above all, the initial intent. A documented wealth-management transaction (main residence, long-term investment, personal enjoyment) remains, by contrast, outside the scope.