The diploma thesis deals with the matter of business in construction. It focuses on the business intention, business plan, or feasibility study and describes the differences between them. It theoretically defines when, under which circumstances and for what reasons it is appropriate to create a business plan for the intended purpose. It also includes a description of the individual parts of the business plan. The practical part of the thesis deals with the specification of the business plan in the problematic of processing bids for construction work in public and private tenders, for which this real business plan is created, with an evaluation of whether and under what conditions this plan could be implemented