Contemporary throughout its development to these three cultural phases, in Lower Egypt we first find the Maadian cultural complex, which is later joined by the Buto cultural complex in 3600 BC.
The Maadian specifically is made up of a dozen archaeological sites, among those that emphasize the cemetery and the establishment of the own Maadi. Contrary to what we see at the sites of the Naqada civilization, the Maadi cemeteries are much less important to the archaeological record than the settlements.
In this sense, the excavated structures show three types of remains, one of which is completely exceptional. It consists of houses excavated in the rock with oval plans measuring 3 x 5 meters in surface and up to three meters deep, which were accessed through an excavated passage.
The presence of hearths, semi-buried jugs and household remains suggests that they were permanent places of residence, which is not without attention for being underground. On the other side of the scale, around 600 tombs have been discovered in Maadi, which is nothing compared to the 15,000 predynastic tombs in the south of the country. It is not only a question of quantity, but also of quality: the tombs of Lower Egypt are extremely simple, based on oval holes with the deceased in a fetal position, wrapped in a mat or cloth and accompanied only by one or two ceramic containers or even for nothing at all.
Starting in 3600 BC, the Maadi-Buto culture not only had contact with the civilization of Naqada II to the south, but was also related to Asia by land with the Palestinian strip and by sea with the northern coast of Syria and, through it, with Mesopotamia.