Permanence of Kastamonu Castle in Turkey which has been the witness of history emerges as the most important value. Historical places and structures are important expressions of community's culture and identity. The structure can be provided to serve from the past to the future. In this study; characteristical features of Historical Kastamonu Castle, used materials and reasons of structural deterioration are analyzed for restoration suggestion. Historical Kastamonu Castle is important for long-lasting regional culture properties.