Private portion (sometimes common) qualified as such in the context of the creation of a co-ownership, whether it is established in phases, by successive modifications or otherwise. Nowhere does the Civil Code of Quebec mention the expression "transitional lot". The use of the transitional lot is a creation of notarial practice allowing a developer to postpone the constitution of lots (private and common portions) that cannot be registered on the day of publication of the declaration of co-ownership. It is intended by necessity to be replaced by new lots, by means of a cadastral operation.