Condominium.
Condominium. Unless otherwise provided by State law, a condominium is a form of ownership where the buyer receives title to a three dimensional air space containing the individual living unit together with an undivided interest or share in the ownership of common elements.
Source
38 CFR § 36.4301
Scoping language
Whenever used in 38 U.S.C. chapter 37 or subpart F of this part, unless the context otherwise requires, the terms defined in this section shall have the following meaning: