(1) In this Act, principal unit means—
(a) a unit that is designed for use (whether in conjunction with any accessory unit or not) as a place of residence or business or for any other use of any nature, and that is shown on a unit plan as a principal unit; and
(i) contains a building or part of a building or is contained in a building (although the unit may or may not be bounded by the physical dimensions of the building); or
(ii) is a car park.
(2) Unless otherwise specified, a reference to a principal unit in this Act does not include a future development unit.
(3) A reference to a principal unit that is to be, or has been, subdivided to create a subsidiary unit title development includes a reference to any accessory unit subdivided with the principal unit (as described in section 20(2)).