(1) An application by owners of adjoining property for entry in the register of the boundary between their property, or part of it, shall be made by lodging in the Registry-
(a) a plan drawn on an application map showing the land adjoining the boundary to be defined and indicating the site of the boundary by a line in colour;
(b) a consent in writing by the owners referring to the plan and stating in the manner prescribed by Rule 139 the physical boundary along the line indicated on the plan and the part of it that they agree is the boundary.
(2) Where an owner who is a consenting party is the owner of unregistered land, proof shall also be given that he/she is the owner within the meaning of Section 89 of the Act who is authorised by that section to consent.