The city of Alba Iulia is the bimileary depository of a vast cultural and historical architectural heritage (www.inmi.ro and www.cimec.ro), of national and international importance, enhancing the development of both the city itself and the entire functional urban area bordering. The investments made in the 2007-2013 programming period have created the prerequisites for a local dynamic that underpins and outlines the guidelines for the next stage, around four strategic objectives precum:1.Alba Iulia-a smart city, accessible and coherent,2.Alba Iulia-a green city, with efficient public services,3.Alba Iulia-a competitive and creative city,4.Alba Iulia-a European cultural and touristic objective.In agreement with the strategic objectives of the city, it is proposed to realise projects that are subsumed by the vision of Alba Iulia “by 2020 to become a more attractive city for living and investing”.In this context, CONSERVAREA Project, the DURABLE OF THE ANSAMBL OF PRINCIPAL CORP PRINCIPAL E PRINCIPAL CORP PRINCIPAL E PRINCIPAL ASSAMBLING OF THE PRINCIPAL ASSAMBLING OF THE PRINCIPAL OF ALBA-YULIA-CENTRU E frames a logic of intervention that will contribute to achieving the objective of general:conservarea, protecting and capitalising on cultural heritage and cultural identity in order to boost local development on sustainable and competitive criteria. RESTAURATION AND VALORIFICATION OF THE ANSAMBL OF the PURPOSE OF ALBA-IULIA-CENTRU exhibition CORP PRINCIPAL E proposes the realisation of a local investment that generates a regional, national and European impact, by highlighting a historical monument, class A, included in the list of historical monuments 2015, from Alba County at 253 position, under the name of the Princes Palace, today the Military Circle.The Palace is located in the Urban Site “Alba Iulia Fortress”, LMI code 2015:AB-II-s-A-00091 and framed in the protection area of other historical ensembles and monuments class A nearby.The Principle Palace is an important architectural complex, located in the wider ensemble of Alba Iulia Fortress.The history of the palace’s evolution comprises many stages of construction – the Romanian era, the mediavala, the rebirth, the Baroque, the 19th and the 20th centuries – restorations, destructions and refunctionalisations, concurrently with the urban neighbourhoods. The specific feature of the Palace of Principles results from its value as an element of historical and cultural heritage of national and international value, from his historical role, from the functions and symbolism held throughout the ages of history, as well as from the uniqueness of the architectural and art elements he possesses. Among these we mention:•Sedium of the Head of the Romanian-Catholic Bishopric of Transylvania;•Sedium of the princes of Transylvania between 1542-1699, political space of European level;•The place where important decisions were taken, which marked not only the destiny of Transylvania and the other two Romanian countries, but also the destinies of some Eur powers