Strata area. The market generally adopts the strata area shown on a registered strata plan as the basis of negotiation and sale.

The strata area is usually measured from the inside face of the wall and the area calculated by a registered surveyor. The strata area is usually adopted as the basis for negotiations for individual and whole building strata units. Valuations generally show the PCA leasable areas for the capitalisation approach and the strata area for analysis of direct comparables (this may vary in some markets). In all cases, the basis for the method of measurement being used should be clearly stated.