This is, undoubtedly, the most commonly used method. The customer submits his ideas to professionals for the purposes of conceptualization. Once the customer takes delivery of the plans, there are two options: personally selecting the contractor or relying on professionals to make the choice. In either case, the general contractor is selected on the basis of preference and reference or through tender. Throughout the project, the customer remains at the very heart of the decision-making process and authorizes all procedures. The general contractor and professional team work in close collaboration to offer the customer the very best in service, while ensuring that budgets, which are usually predetermined, are respected.