"However, there are, in the case of a building not yet constructed, obvious difficulties in describing and identifying the precise compartment of airspace into which the constructed unit will fit, and I am satisfied that by s 49(2)(a) the legislature does not require this to be done. The lot is sufficiently identified by the unit number, lot number, the floor on which it is intended to be, and the detailed drawing contained in the eighth schedule. That is not to say that a purchaser has no need to be, or in the present case has not been, informed of the geographical aspect of the unit which he has agreed to buy. Ordinarily one would expect him before contract to make inquiries or perhaps ask to see a plan of the building to determine its location on the land. But it is quite a different matter to suggest that the incorporation of such information is required in order to "identify" the lot."