The diploma thesis deals with all procedures from the application for the public procurement notice, the implementation of the public procurement procedure and adaptation, to the granting of the certificate of occupancy for the building. The first part contains the issue of the Central Pharmacy associated with the bad repair of the rooms and its rich history going back to the 16th century. The second part contains the entire chronology of the Law on public procurements (ZJN) since its first announcement in the year 1997. The first announcement of the Law on public procurements was due to the lacking experience of the preparers full of absurd provisions that from the EU. For this reason, the new Law on public procurements (ZJN-1A) was passed in the year 2000. Soon after its enactment, the same one showed many imperfections and it got many critical remarks from the domestic and foreign public, because it senselessly took over the regulations of the EU members. In 2004, the Amendments to the law ZJN-1A were passed, which contains a series of harmonisation of the ZJN-1A with the EU regulations on public procurements and the correction of imperfections in the ZJN-1A shown in practice. The third part contains the preparation of documentation and announcement of the public procurement. It represents the procedure of preparing a bid of one of the bidders and the selection of the most favourable bidder out of the bidders submitting the complete bid. The selection of the most favourable bidder was carried out according to the procedure of point marking of the handed bids. The bids which did not contain the complete documentation were eliminated. The last part describes the adaptation procedure, the problems which arose in this connection and the solving method. The comparison of the bid value and the final value of the carried out works shows that the final costs are higher than anticipated and that during the adaptation some unforeseen extra works have been arising. Usually the profit of the executor is hidden in these extra works.