Feasibility studies are preliminary studies undertaken in the very early stage of a project. They tend to be carried out when a project is large or complex, or where there is some doubt or controversy regarding the proposed development. If an environmental impact assessment (EIA) is required, this may involve assessments best undertaken as part of feasibility studies.

• The goals of the project
• Opportunities and constraints of the designated site
• Key issues influencing the design
• The sizes and design criteria for every room in the building
• The limits of the project site and the scope of all related site improvements, such as roads, landscaping, and utilities
• Design criteria for all building systems
• Estimated construction cost