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This article aims to study the process of heritage recognition in an industrial reconversion area in Belfort (east of France) in which some executors are constrained by territorial, political, economic, social and cultural requirements. Devised with a view to restructuring at city-wide scale, Techn’hom draws its originality from its spatial extent and its economic vocation. In this territory, the industrial potential has been based on the energy and transportation hubs since the end of the 19th Century, and more recently on research. Techn’hom is especially original as we observe more frequent cultural rehabilitation accompanying huge industrial heritage programs. This type of approach is therefore quite new. Territory, the process of heritage recognition, economy, different executors and architectural creativity raise questions on the concepts of both memory and forgetting. This contribution also studies the evolution of the heritage concept, its readability and its connection to humans and their surroundings, to history and to society in a future perspective. This urban operation -Techn’hom- shows its resilience and the close link between territory and its heritage as potential for innovative developments: social, political, cultural and economic.