Authenticity in architecture is a topic of much discussion. The term itself has been given many definitions and limitations, and can be used to describe the realness of material, structure, symbolism, or more. When looking at three case studies in Delft (Markt 2, Markt 27, and the Vermeer Centrum), it becomes apparent that authenticity has a large important in the maintenance of heritage in the city. Not just by being old or historic, but by the story it tells to the city and its culture and inhabitance.