Abstract: An anchor element for a tower includes an anchor plate element including an upper surface, a lower surface, and at least one first through-hole extending between the upper surface and the lower surface; and at least one first nut having a female thread, the at least one first nut being provided at the at least one first through-hole at the lower surface of the anchor plate element so as to cover the at least one first through-hole, wherein the at least one first nut is non-releasably connected to the lower surface of the anchor plate element.

Abstract: A foundation interface for a concrete foundation for the support of a structure comprises a prefabricated concrete element with a plurality of through holes, which are geometrically arranged to correspond to an arrangement of holes or bolts of a structure to be supported. Further, a method for fabricating a concrete foundation comprising such a foundation interface is provided.