Document listing the work to be undertaken over several years in the common portions of the immovable. The plan specifies the order of priority of the work and its cost, so as to ensure the orderly maintenance of common portions and anticipate their deterioration. It includes the contingency fund survey, the maintenance log, the certificate of the condition of the immovable. This document is an integral part of the register of co-ownership as a "document relating to the immovable'' and shall be made available to any co-owner upon request.