(a) If the declaration expressly permits it, a unit may be subdivided into two or more units. Upon application of a unit owner to subdivide a unit, the association shall, subject to the provisions of the declaration and other provisions of law, prepare, execute, and record an amendment to the declaration subdividing the unit, including in a condominium or planned community filing and recording a plat or plan that accompanies the amendment.
(b) The amendment to the declaration must be executed by the owner of the unit to be subdivided, assign an identifying number to each unit created, and reallocate the allocated interests formerly allocated to the subdivided unit to the new units in any reasonable manner prescribed by the owner of the subdivided unit.