On family farm “Pr' Kalan”, which breeds dairy cows, fattening bulls and young cattle in a tied-in housing system, they need to make a reconstruction of the cattle barn. Since the number of cattle on the farm is to remain unchanged, there is no actual need to build a new barn. Our aim is therefore to preserve the existing barn and adapt it to free stall barn to make breeders’ work easier. The first part of the B. Sc. thesis thus presents the advantages as well as disadvantages of different housing systems for dairy cows, fattening bulls, young cattle and calves. The most optimal solutions regarding space, economy and labour in the reconstruction of the existent barn are presented in the second part of the thesis. In order to provide enough space for the animals, the outlet of the barn and the lying pens for the dairy cows are proposed as the most suitable solution. To minimize the costs, the reconstruction is to be carried out by the owners themselves with their friends’ help and using wood since there is an abundance of it available on the farm. With the reconstruction of the existing barn is expected to improve dairy cows’ and young cattle’s welfare as they will enjoy greater comfort, make the breeders’ work a bit easier, as well as help to shape a more favourable view on the farming process from the consumers perspective.