Real-time visualization of cadastral information through augmented reality (AR) has emerged as a significant challenge for public authorities in recent years. This paper addresses the potential, usage, and challenges of AR in the public sector. The prototype developed for this study demonstrates the visualization of geospatial data from ALKIS (Amtliches Liegenschaftskatasterinformationssystem, engl. Authoritative Real Estate Cadastre Information System), visualizing the boundaries and points of parcels in AR. Field tests conducted within this study assess the accuracy and usability of the AR visualization. As part of the study, existing AR libraries and frameworks were evaluated to select the most suitable platform for the prototype. The research underlines the potential of AR for geospatial applications, although it points out current precision limitations in the absence of external GNSS (Global Navigation Satellite System) receivers. The outcomes demonstrate the capabilities of AR visualization in a geospatial context and provide concrete approaches for optimizing future applications and research initiatives.