Interior Designing is the science, art, or technique of arranging the interiors of a room, a floor, or a building. Interior decorating and interior design are two distinct areas that are frequently confused. The Designer creates the space, while the Decorator adds to it. From the blue print until the project's execution/completion, an Interior Designer coordinates.

Since there is a limited amount of room for construction, it is necessary to make the most use of what is available. The most efficient use of space, the user's well-being factor, layout functionality, and developer cooperation are the most significant features of interior design.

Interiors were once put together instinctively as part of the construction process, according to the demands and expectations of stakeholders or developers. Interior design has become a science due to time and space constraints. An Interior Designer, for example, will have the skills and foresight to include a small closet, attic, or washroom into a room when it seem difficult to a layperson without sacrificing useful space..

Interior design is such a broad field with numerous verticals that it has branched out into specialty designers. Interior Designers are available for flats, residences, commercial buildings, offices, hospitals, hotels, and schools, among other things. Vastu is a highly essential part of construction in Nepal. As a result, the interior designer is responsible for advising the building's erectors on Vastu's basic needs.