Spatial design is a relatively new and growing field that investigates the mutual relations between physical and social spaces (both interior and exterior) and the people. It is about the design of the spaces within buildings, within city streets, public spaces and service areas. It caters to this human flow, how the people use the spaces, and their experience within those spaces.

For a designer or an architect to engage in spatial design, it will be crucial for them to know how people actually live and to understand the societal agendas and the historical background behind the change of spaces, and it is fundamental to see the interior organisation and design in relation to the architecture, the city, the landscape, and society at large. Various domain of design including architecture, interior, visual design, experience design, landscape architect, and service designers as well as urban planners and public art people collaborate to work on spatial design. A good spatial design results into efficient homes, efficient and inclusive cities, efficient and collaborative public spaces, efficient flow of people, efficient interaction between people and spaces.