The project of Xtended spaces is based on a theoretical frame that approaches the concept of space from a geographical perspective in order to extend into hybrid environments. In the notional context of multiplicity (Gilles Deleuze, Félix Guattari) the analysis was based on the applicability of fields that merge the digital, the real and the narrative milieu. The project of Xtended is based therefore on an encrypted augmented coordinate system (the grid) where virtual passages are founded in order to be decrypted. The process of decryption presupposes the use of the Xtended App (Google Play/Xtended) but most importantly the actual physical presence of the sensor-carrier in the area where the Xtended space is located. Once an augmented coordinate is crossed-traced the application notifies the user and the hyperlinked Xtended space of the museum is accessible and set for navigation. While a typical museum extension is a construction planned adjacent to an existing museum edifice, the project proposes and open-ended approach of both the structural-synthetic elements of the extension itself and the potential assembly with a fore-existing museum institution. The installation of a museum extension in such a way enables also new ways of displaying different genres exhibitions (screen-based media, digital arts, digitized ‘traditional’ forms of art) rendering thus the curate process into a fundamental stage design. The main objective of the Xtended spaces is to present an intermediate spatial condition where navigation mutates towards a form of narration. Xtended spaces, both in concept and in realization, is a project  that flows to and fro to a critical thinking regarding the problematic of site-specificity (in-situ/ex-situ), the city and the existing infrastructures (virtual/real) and the active engagement of subjects with space.