As it is considered about increasing possibilities of obtaining funds from the European Union, as the external sources of financing entrepreneurial ideas, it is also important to carefully plan the project from a concept through to a final implementation in order to have time to remove any difficulties or negative effects of the project, and ultimately shorten the time required for its implementation. This work goes in for with the case study of planning the project for the reconstruction of the old building in Križevci into an authentic house with a range of dishes and drinks, typical for Koprivnica and Križevci county, in order to stress the importance of planning for the success of the project. The project "The reconstruction of the autochton house in Križevci" is both of importance for entrepreneurs and for a strengthening the local touristic offer with respect to development of rural tourism. Based on the experienced entrepreneurs in accountancy and catering trade and also on the theoretical revelation and the business analysis, it has been concluded that a project realization is a demanding and an extensive work, so that entrepreneurs should pay a special attention to the cost structure, the projection of income and expenditures, and planning steps through each phase of the project. The analysed example of the entrepreneurial venture shows that with the knowledge, experience and a careful planning the time limit of the implementation is reduced at an early stage in preparing of a business plan for the application to projects and credit financing for a business idea. However, when the project is being realised, the entrepreneur is relatively affronted with a huge number of unpredictable obstacles, which have to be obviated or reduced in order to maximize a developmental potencial of the project.