Interior Decoration and Interior Design, although related disciplines, are different in terms of their application. Interior Decoration is the process of decorating a house with regards to finishes (for example wallpaper and paint, choice of furnishings and fixtures as well as adding finishing touches and decorations such as paintings and objets d'art. All of this provide a certain "feel" to a house but essentially the underlying structure of the house is not changed.

Interior decoration is normally professionally done by Interior Decorators although recently there is a movement for people towards learning about Interior Decorating through various courses or books and then apply the techniques themselves - usually on a shoestring budget. The whole objective of Interior Decoration is to make a house aesthetically pleasing and at the same time, unique, since it should reflect the owner's specific personality and tastes.

Interior design on the other hand is more integrated with the architecture of a building and a professional Interior Designer will work closely with architects and builders to make choices regarding the integral design of the whole house or building. This includes looking at choices with regards to room layout, choice of cabinets and tiles and a whole host of other design factors. While previously the Interior Design budget for new developments was minimal, it is recognized these days that incorporating Interior Design into the project means the difference between a mediocre development and one that contributes to the branding and life-style image of the project. The money spent on Interior Design is therefore seen as a worthwhile investment in the whole property development process.

Homeowners are spending more and more to improve their homes. Since it is relatively easy to change the whole look of a house by changing the finishings, furnishings and fixtures a large portion of this money goes into Interior Decorating. The growing popularity in do-it-yourself Interior Decorating has meant that a whole industry around Interior Decorating books, TV Shows and courses have also sprung up, and it has become a popular hobby for married couples. Innovative Interior Decoration ideas, which cost less but at the same time giving the impression of style and class, are in vogue.

Young entrepreneurs have also seen the gap and there is a growing demand for information and courses on how to break into the Interior Design and Interior Decorating Industry. This has also given the home interior decoration industry a boost.

Although the trend recently is for people to tackle the exciting task of transforming a house themselves, it has to be recognized that this falls more in the area of Interior Decorating. Interior Design still requires study of the context of Interior Design, the theory of good design, knowledge of the technical advances in the engineering industry for both residential as well as commercial buildings and knowledge of the latest trends and advances in the Interior Design industry.

In short, an Interior Design project in which all the elements of design are pulled together is still the ambit of the professional designer who should be able to deliver on projects that extend beyond the boundaries of a hobby pastime.