The residence is part of the heritage of the Superintendence for architectural and environmental asset of Ravenna. The building, dated back to the Fifties, is situated in the 3rd century complex of Castel Sigismondo, in the city centre of Rimini, standing out from the late-imperial city walls of the Roman Age. The original flaunt of the fortress and the archaeological value of the subsoil, full of historic findings, represent precious sites which have influenced our project, aimed at finding a diffused prehistoric value. The delicate reclamation of the external yard pays particular attention to the energy saving, the reduction of carbon dioxide, and the reutilisation of rainwater for irrigation. Systems project together with the architectural plan are conformed to the highest levels of electronic technologies and sustainability. The materials choice is inspired by the colours of the surrounding environment. We have used again the handmade bricks of terra cotta for the external wall, the natural white-ivory stone of Trani for frame work, for the roof and also for the external paving posed directly on the ground in order to take advantage of its drain characteristics. Inner spaces have been thoroughly thought and soberly furnished, with natural finishes and paving made of Egyptian stone. This intervention has respected the urban scene, establishing with the city the assumption for an harmonic dialogue between shapes, borders, images and volumes.