A promise of sale is equivalent to a sale when there is mutual consent by both parties to the property and the price.
If this promise applies to land already subdivided or to be subdivided, its acceptance and the resulting agreement will be established by the payment of a deposit on the price, whatever name is given to this deposit, and by the taking of possession of the land.
The date of the agreement, even if regularised at a later date, will be the date of payment of the first deposit.