The Parking House Loški Potok is a steel structure with a composite reinforced concrete (RC) slab supported on profiled steel sheeting, designed to serve as an elevated parking platform above a new parking area. The building’s footprint measures 24.1m x 16.4m, with a height of one story and a floor-to-floor height of 3.1m. The structure features steel columns spaced at 5m, supporting primary beams spanning 13m. These beams, arranged in a 2.5m grid, connect to a composite RC slab that provides horizontal rigidity. The slab is integrated with the steel beams through shear connectors, ensuring composite action. Secondary beams along the façade enhance both load distribution and seismic performance. The entire structural system, including foundations, is designed to resist seismic forces with medium ductility, ensuring stability under a design ground acceleration of 0.15g. Foundations consist of point footings, adequately reinforced to handle site-specific geotechnical conditions, including potential karst features. This design combines functionality and resilience, ensuring efficient use of space while meeting modern structural and seismic standards.