Data from field recording of domestic house architecture in the southern region of the Mani Peninsula, Greece. Measurements were collected for 406 houses dating to the Middle Byzantine to Ottoman periods (8th to 17th centuries AD), allowing for a better understanding of typical characteristics of the so-called "palaiomaniatika" (or "Old Maniat") architecture that dates to these periods. Additionally, total house counts were obtained for 32 settlements that were able to be mapped in their entirety, providing insight into the typical size of these settlements.