The complex consists of Pepi's pyramid with its adjacent mortuary temple. The pyramid contained a core made of limestone and clay mortar. The pyramid was encased in white limestone. An interesting feature is that after the north chapel and the wall was completed, the builders tore down these structures and enlarged the base of the pyramid. A band of brickwork reaching to the height of the perimeter wall was then added to the pyramid. The purpose of this band is not known. It has been suggested that the builders wanted the structure to resemble the hieroglyph for pyramid, or that possibly the builders wanted to fortify the base of the structure due to an earthquake.