. Abstract, urban development (politicians, citizens, technical specialists) How is this tool used in design offices, and what does it bring to projects? Two examples of consultations, carried out during the internship, are studied and compared in order to identify a vision of consultation from design office in urban planning and landscape. Global issues on the consultation process and the contributions they provide to development projects for the area is cleared. A new definition of consultation is deducted to the views of those field experiment and lectures on the subject. The positive and negative points of consultation are discussed from the views of this experience