The essay speaks about some aspects of mining and preparation of building materials used for constructions of earth buildings in Central Moravia, in the ethnographic area of Hana. Based on the sources of narrative nature and the literature, we have depicted the already extinct tradition within the above region. We pay attention to the way in which the raw material was extracted and processed in connection with the intended kind of bricklaying. In Hana, they used mainly the pre-shaped building units – clay lumps and unburnt bricks. The specific role of brickmakers and builders of earth buildings as well as their position within the village community are taken into consideration as well. The attention was paid also to themaintenance of these buildings, which was based on several acts repeated regularly in certain periodical intervals.