The archaeological site Anchorena 942 (San Martín theatre) is located within the foundation area of Baradero’s city, where it had been set between 1615 and 1775 d.C. the indigenous town (pueblo de indios) that originated the spanish settlement in colonial times. Faced with the fortuitous finding of old structures beneath the theatre’s stage, it was developed a first phase of archaeological rescue and the elaboration of proposals for the musealization in situ. The excavations revealed an exceptional record linked to traditions of indigenous, european and creole societies, representing the historical depth and the multicultural origin of the town. The discovery enhanced the interest of various social actors of local community (official and ecclesiastic authorities, neighbours, among others) to participate, revealing the need to investigate and preserve this kind of culturally and historically significant places. These scenarios create opportunities for the elaboration of proposals for the preservation and socialization of cultural heritage at different scales, articulating significant memories and historical and archaeological spaces, new and known, that contribute to the construction of collective memory. Our objective here is to present this experience by focusing on the challenges of generating strategic and multidisciplinary planning that seeks to integrate the social construction of knowledge with the interests and demands of different social actors trough research and heritage management. Two main subjects are discussed as conclusion: their inclusion in comprehensive long-term projects aimed at public use for educational, cultural and tourist purposes, and the scope and possible modalities of action for contract archaeology in Argentina. Key words: Urban Archaeology, Contract Archaeology, Historical Archaeology of Argentina, Archaeological cooperative, Heritage strategic planning, Value-based management The excavations revealed an exceptional record linked to traditions of Indigenous, European, and Creole societies, exposing the town's historical depth and its multicultural origin. The discovery enhanced the interest to participate in various local community social actors (official and ecclesiastic authorities, neighbours, among others), revealing the need to investigate and preserve this kind of culturally and historically significant place. These scenarios create opportunities to elaborate proposals for the preservation and socialization of cultural heritage at different scales, articulating significant memories and historical and archaeological spaces, new and already known, which contribute to the construction of collective memory. Our objective here is to present this experience by focusing on the challenges of generating strategic and multidisciplinary planning. It aims to integrate the social construction of knowledge with different social actors' interests and demands through research and heritage management. In conclusion, two main subjects are discussed: their inclusion in comprehensive long-term projects aimed at public use for educational, cultural, and tourist purposes, and the scope and possible modalities of action for contract archaeology in Argentina.