Social land classification conducted in 1949 quite significantly affected the location of farms in the Stalinist period. Authorities, by means of deliberate action, by dishonestly overstating the classes of land, artificially overestimated the encumbrances of individual farms. The scale of anomalies was large and the cost of benefits imposed on peasants in many cases turned out to be unbearable. Particularly strongly affected by the consequences of unfair land classification were the owners of individual farms in Warmia and Mazury, sparsely populated area, devoid of equipment and inventory, where after the war a specific surface structure of farms developed, in which medium and large areas dominated. Due to overstated classes of agricultural land and applied system of progression in benefits, maintaining farms became unprofitable, and therefore many of them collapsed. The new agricultural policy implemented since 1948, in which the so-called social land classification became a component, deepened the problems of Olsztyn agriculture.