He changed tradition by moving the royal burials to Meidum in Fayum, south of Saqqara, the previous necropolis
Construction
1) Fortress on the island of Elephantine, securing the southern border of Egypt
2) Old kingdom Pyramid at Meidum (finished by Snefru)
3) several small step pyramids scattered in remote areas, these have no known purpose since they contain no internal chambers, so they are not tombs.
Old Kingdom 