features that are available in the building market. It is a mistake to try and select all of the individual parts and then try to assemble a house from a stockpile of unrelated features.

     Developing the most appropriate design concept requires careful study of the building program and an incisive comprehension of the internal zoning of the home. Basically, each "zone" constitutes a grouping of related activity areas that must be evaluated in terms of its size, potential shape, mass and relationship to other zones of the house. Variations in the relationships of these zones will produce distinctly different building masses that will significantly influence affect the interior sequence of spaces and exterior composition of the house. Changes in building shape and mass greatly affect the exterior appearance and choice of architectural styles for the home.