The main purpose of this masters thesis is to develop a thorough reconstruction of the medieval synagogue in the lower Austrian town of Bruck an der Leitha and to draft a concept for gently reusing the still existing remains in the future. A three-dimensional digital building model, renderings and a virtual reality tour are used to display the results of the reconstruction work, which is based on the remaining building, scientific research, comparison to similar buildings and an archeaological survey. Just one century after the synagogue was built, the Jewish settlers were expulsed from the whole of the Duchy of Austria. The building was never again used as a Jewish shul but still managed to survive for centuries. Now, strengthend by a recent change of ownership to the city, a new purpose has to be proposed. The remains for the most part consist of a six by eight meter room, covered by notable five-sectioned ribbed vaults. This room shall serve multiple purposes from lectures, concerts and seminars to weddings and exhibitions. The flexibility in the configuration is the main aspect, necessary secondary rooms are situated in the surrounding buildings, the town hall or the residential house along Schillerstraße. For this repectful transition, interventions to the original building are kept to a minimum.