The building of Mehrabad Airport’s multi-storey car park with the approximate infrastructure of 84012 m2 in six stores is located in the site of Mehrabad International Airport in Tehran. This project, with the aim of controlling design calculations and structural details, was defined in July 2014. The services presented in this project includes: 1- controlling and checking the structural details, verification of gravity and seismic loading resisting systems of the structure, controlling structural seismic ductility and serviceability regulations, and 2- preparing and presenting technical viewpoints and suggestions regarding design assumptions (including gravity and seismic loads), structural details and technical calculations according to the existing design documents of the structure.