The development of new projects in many cities at present deals with problems when locations of new buildings and the surface of the building area come closer to underground tunnels. When new buildings are to be realized on the surface of an underground tunnel track, some questions will show up with respect to the safety of the tunnel as well as the foundation or any restrictions for the new building design considering the tunnel safety. Both the construction phases and the final phase of the buildings may cause problems for the tunnel. In such situations it should be clear whether any problems do occur and if so, what restrictions the building design (and foundation design) should follow.