At Dahshur, he built his mastaba tomb at the necropolis[2] attached to the Pyramid Complex of Senusret III. It was solid, without inner rooms, and was built of mudbricks covered with fine limestone while the outside was decorated with a palace façade and with the biographical inscription. The tomb has an area of c. 40 square metres (430 sq ft) and is relatively small if compared to some neighbouring tombs belonged to other viziers that are around 150 square metres (1,600 sq ft); this fact, in addition to his ranking titles reported in the tomb, suggests that Khnumhotep likely ordered this tomb early in his career, and that he became vizier in his very late life and didn't have enough time for building a mastaba more appropriate to his newly achieved high rank.[3]
The tomb was first excavated around 1894 by Jacques de Morgan who found several inscriptions as well as Khnumhotep's remains from which he estimated that the vizier should have been in his early sixties at the time of his death. New excavations after 2000 found several further biographical inscriptions, including those mentioning an expedition to Byblos and Ullaza.[4][5]
