(1) May make any improvements or alterations to his unit that do not impair the structural integrity or mechanical systems or lessen the support of any portion of the condominium;

(2) May not alter, make additions to, or change the appearance of the common elements, or the exterior appearance of a unit or any other portion of the condominium, without permission of the council of unit owners;

(3) After acquiring an adjoining unit or an adjoining part of an adjoining unit, may remove or alter any intervening partition or create apertures therein, even if the partition in whole or in part is a common element, if those acts do not impair the structural integrity or mechanical systems or lessen the support of any portion of the condominium. However, prior approval shall be given by the council of unit owners or its authorized designee and an amendment to the declaration and plat(s) shall be filed among the land records of the county in which the condominium is located under the name of the condominium. Removal of partitions or creation of apertures under this paragraph is not an alteration of boundaries.