1.  define your needs and budget;

2.  choose an expert to follow the project;

3.  identify any essential work that needs to be done;

4.  assign the budget for each work to be done;

5.  get a quote from three different building companies;

6. select your company according to price, timing and professionality;

7. deal with the enabling documents for  the execution of the works;

8.  follow the execution of the project;

9. get the due certification for the executed works;

10. make the end of the works official and update cadastral information if needed.