As used in this section, the term "units" shall include space used or to be used for either residential, commercial, mixed or other use whether title is held in fee simple, a condominium, cooperative, or mixed form of ownership. It shall be unlawful, after a map or maps of such property has been filed, to subdivide said property in a manner other than as shown on said map unless said map has been amended and approved in accordance with the provisions of subdivision six of this section.
N.Y. Real Prop. Law § 334-A