Çatalhöyük was a very large Neolithic and Chalcolithic proto-city settlement in southern Anatolia, which existed from approximately 7100 BC to 5700 BC, and flourished around 7000 BC.

The deceased in this village where bonded closely together and placed in a hole under the sleeping area. Dr. Amy Bogaard explains this was so the living could live with their ancestors.

As a part of ritual life, the people of Çatalhöyük buried their dead within the village. Human remains have been found in pits beneath the floors and, especially, beneath hearths, the platforms within the main rooms, and under beds. Bodies were tightly flexed before burial and were often placed in baskets or wound and wrapped in reed mats. Disarticulated bones in some graves suggest that bodies may have been exposed in the open air for a time before the bones were gathered and buried. In some cases, graves were disturbed, and the individual's head removed from the skeleton. These heads may have been used in rituals, as some were found in other areas of the community. In a woman's grave spinning whorls were recovered and in a man's grave, stone axes. Some skulls were plastered and painted with ochre to recreate faces, a custom more characteristic of Neolithic sites in Syria and at Neolithic Jericho than at sites closer by.
_{Wikipedia page on Çatalhöyük}

Çatalhöyük has also been covered in "The Story of God with Morgan Freeman" series SE01 EP03 where Prof. Amy Bogaard explains (around 9:40) that the graves would be opened for ritual purposes and to add new bodies. Youtube link 2:30

My question is what happened when the burial holes were full and no more room was in the house?