Common boundaries are defined in land titles as the borders between parcels of land. Fences that separate the land of different owners are usually, but not necessarily, built on the common boundary of adjoining lands.
A copy of land title gives an indication of boundary dimensions by making reference to a diagram. However, only a licensed surveyor can determine the actual location of your property boundaries.
Dimensions of common suburban properties are generally shown with a street frontage and connecting distance to a street corner. Strata and multi-level developments often include height and depth. It is not uncommon for parcels of land in rural areas to include a reference to a river or creek when describing a boundary.