The project is a very important task, which must contain a description of the house, or your detailed vision of the future property. The available budget is also important, of course, for predicting construction costs.

Along with the first step, which is the request for determining special conditions, a conceptual solution is submitted. The main project includes: architectural project, construction project, electrotechnical project, mechanical project and geodetic project. 

for the main project, depending on the type of construction, i.e. the works, the preparation of an elaboration for which the need is shown is preceded, and this is then a written contribution in which a subject is thoroughly explained. Special conditions are established before the building permit issuance procedure. Public law bodies (HEP, MUP, Hrvatske vode and other relevant bodies in the process...) are obliged, at the request of the investor, to establish special conditions for the construction of the building shown in the main project and issue a certificate of the main project if the conditions are met.