Globalization and technological advancements, especially smartphones, have changed the way of daily interactions and activities, including business promotion. In the property business, Grand Cikarang Village Housing still uses traditional promotional media such as brochures and billboards that only display 2D images, so that it is difficult for prospective buyers to imagine the original shape of the house. Augmented Reality (AR) technology is a potential solution to increase the effectiveness of promotions by presenting more realistic and interactive visualizations of 3D objects. This study uses the MDLC (Multimedia Development Life Cycle) and Marker-Based Tracking methods to develop AR applications. The Fast Corner Detection algorithm is used to detect points on the image that are used as markers, then evaluated with Vuforia to assess the quality of the image. In addition, Black Box Testing is carried out to ensure that the application runs as per the expected functionality without errors. The resulting application makes it easier for potential buyers to understand the specifications of the home, and helps them make more informative decisions by providing a more realistic visual experience compared to traditional promotions.