In the scope of initial studies for a post-LHC (Large Hadron Collider) particle accelerator, the design and feasibility of the Future Circular Collider (FCC) at CERN are studied. In the FCC Geodesy project, which belongs to these initial studies, a high-precision geoid model for the significantly larger FCC area will be computed. The pre-alignment of the magnets and thrusters in the tunnel requires a very accurate high-resolution local geoid model with a precision of up to 30 \(\mu \mbox{m}\) over 225 m. The data sets containing gravity and deflections of the vertical measurements are described. Then, an overview of the existing (quasi)geoid models in the area is shown and representative models are compared to a newly calculated quasigeoid model. This model is the first gravitational (quasi)geoid model that was estimated specifically for this region in a least-squares adjustment. The highest correspondence of the preliminary FCC Quasigeoid was found with CHQua04 published by Switzerland and RAF20, which is a hybrid regional quasigeoid for France. The smallest offset between two models was found between the FCC Quasigeoid and XGM2019. A comparison of the new solution with GNSS-levelling datasets showed a good agreement with a standard deviations of \(<1\) cm in the region of interest. This publication aims to provide an overview of the objectives of the FCC Geodesy project, to show the available data sets of gravity and deflections of the vertical measurements and the results of a first comparison of existing and the newly calculated FCC (quasi)geoid with GNSS-levelling points.