A study of the importance, elements and techniques of architectural contextualism. Contextual architecture is here defined as architecture that creates relationships with its specific site or its broader physical or visual environment. This study posits the comprehensive definition of architectural contextualism on multiple levels: denotatively, connotatively, historically, philosophically, and in its aspects of critical regionalism. American architects adept at the practice of architectural contextualism during the mid-twentieth century offer principles and techniques. These architects are John Carl Warnecke, E. Fay Jones, and George White and others. This research has yielded the systematic, comprehensive definition of contextualism, a set of metrics which can be used as a basis of design and aid in the evaluation of the degree to which a building or set of buildings and their landscape are contextually congruent.