AHI Architectural Heritage Intervention

“Contributing to enhancing our heritage, as the way forward for 21 st Century architecture is our raison d’être; to emphasize a diverse, rich vision that necessarily complements the intervention is our mission, and achieving it with reflexive and purposeful efforts is the challenge”.

This project, founded in, and directed since, 2011 by Ramon Calonge, Oriol Cusidó, Marc Manzano and Jordi Portal, architects and members of the Group of Architects for the Defence and Intervention in Architectural Heritage (AADIPA), has, through the years become a platform that includes four actions that are both independent and transversal.
The European Award, a biennial event that brings together and showcases the multiple approaches of intervention in Europe.

The International Biennial, a framework that serves to compare and gain closer insight of quality interventions in architectural heritage in non-European countries.

The digital Archive, a live and open window that provides a panoramic view of interventions in the history of our surroundings.

The Forum, a meeting place where you can participate in on-going debates about the main preoccupations and lines of thought about interventions in architectural heritage in Europe.

AWARDS 6th Edition


Castle of Osma

Castle of Osma

The Castle of Osma, initially only valued as a romantic ruin in the landscape, has become an extraordinary documentary piece of the history of the border, being project and work the instrument for its re-reading and the way to make it legible to the visitor. The main objective is the preservation and legibility of the documentary values, recovery of the possibilities of visitation and understanding of the values of its implantation in the territory. The excavation has made possible to locate the doors of the outer barrier, recover the original levels, open the water outlets, document a medieval necropolis, some 14th CE barracks and the traces of the county towers whose Roman ashlars were stolen again for the foundations of the cathedral. The intervention carefully respected the stratigraphic reading of its masonry, making it itself legible without stridency, consolidating the 10thCE gates, giving continuity to the visitor pathways and resolving the closure of the castle with wooden structures in the gaps of the stolen towers.

Project name

Castle of Osma




El Burgo de Osma, Soria


Fernando Cobos estudio arquitectura
Fernando Cobos Guerra



Surface area sqm







Architects: Ricardo Martín, Rodrigo Canal
Master builder: Valentín Cobo
Archaeologist: Manuel Retuerce

Cost €


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