This research aims to contribute to the knowledge of middle Copper Age settlement organization in Eastern Croatia. The period covers the time from the end of the 5th to mid of the 4th millenium BC and is characterised by two cultures - Lasinja and Retz-Gajary.

We are going to use two sites as examples of Middle Copper Age settlements - Čepinski Martinci Dubrava, with Lasinja, Furchenstich and Retz-Gajary finds and Čeminac Vakanjac, with only Retz-Gajary finds.

Lasinja culture settlement in Čepinski Martinci Dubrava is situated on a slightly elevated plateau and has rows of above-ground houses. They are orientated in east-west direction, have a rectangular ground-plan, they are longer than 15 metres and generally have more rooms. The largest among them had a porch. All large houses had a partly buried rectangular building to their south, which, based on the discovery of large ceramic vessels, probably served as food storages. In the vicinity of the houses, several round pits with cult burials of human skulls on the bottom were excavated.

A second type of house was also discovered. They are square with 11 metre-long sides, central supporting pillars, and entrances from the south-east, and the same orientation as the rectangular houses. These houses likely had a four-sided roof. This part of the settlement can probably be dated to the post Lasinja Furchenstich horizon.

Retz-Gajary culture settlement in Čeminac-Vakanjac is situated on a slightly elevated part of the site and consists of several large and many smaller pits that are often grouped. Two of the largest features, the large pit dwellings, are 12x9 and 12x7 metres in size and have the most abundant finds. They are surounded with various smaller pits that could be used for daily activities or as storages, while large pit dwelling were probably used as houses. In one of the pits a human skull and parts of skeletal remains were found.

Both settlements have numerous analogies from the same time periods in south Carpathian basin and cental Europe.