This research highlights the importance of urban synergy as a design strategy in contemporary urban projects to build physical and functional linkages, coordinate relationships and reduce distances between individual structures. The synergistic approach is the linkage point between the existing shape and the surrounding blocks to achieve a comprehensive and flexible entity. In this filed, the research problem was identified: Previous knowledge of urban synergy as a concept from the perspective of developmental characteristics to reach a sustainable urban system, which necessitated the wording formative mechanisms of urban synergy as a design strategy. The objective of the research is to reach a comprehensive theoretical framework that achieves the strategy of urban synergy. This required the construction of a theoretical framework consisting of three main concepts:(urban synergistic approaches, characteristics supporting of spatial synergies, Synergistic Formation Mechanisms. The research came to the knowhow to apply the strategy of synergistic formation in contemporary urban projects through considering the mediating position in overcoming urban transformation and hybridization and deal with the formative characters on several levels: relationships, places, details.