What is the Difference Between Interior Architecture and Decoration?

08.11.2023 2 min 15
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The definitions of interior architecture and decoration are often mixed in everyday speech. One reason is that the title is poorly protected in the field; people without a licence introduce themselves as interior architects and the line blurs. A licensed interior architect has authority over the plan, the room layout and the application inside the building.

Interior work is not limited to the first colour or fabric that comes to mind. The discipline runs from furniture materials to finishes, from socket positions to colour, from plaster to timber. That is knowledge work: the right material also prevents later harm.

A small error does not only cost money. It can create a health problem. Decoration is the word that most often collapses into this picture.

Decoration is the applied layer of surface and furniture after the plan is set. The decorator moves on the information the interior architect has already given. Many decoration firms now call themselves interior architects. That is misleading and unethical.

In short: interior architecture is plan, room layout and application. Decoration is surface and furniture after that plan. One is not a prettier name for the other; the order and the authority differ.

Current project: Aden Ballıkpınar Villa Decoration

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Aden Ballikpinar House Decoration

Ballıkpınar, Gölbaşı, Ankara 400 sqm 2022

What are the differences between Decorator and Interior Architecture Professions?

  • A decorator works on surface and furniture after the plan and room layout are set; technical fabric is not their field.
  • Personalising a room and dressing it sit in the decorator's group of work; rebuilding the layout does not.
  • A decorator's duty begins after the building shell is complete.
  • Interior architects sit in the project team. They form the space: plan and room layout.
  • Decoration needs history and art. Interior architecture adds structure, services and material knowledge.
  • In brief: an interior architect has the skill and authority to take a wall down; a decorator adds value to the same wall without removing it.
  • Interior architecture includes decoration. Decoration does not, by itself, carry plan and application.
  • Only the decorator owns ornament. They do not rewrite the layout.
  • Authority to intervene from first drawing to last fitting belongs to interior architecture.
  • A decorator deals with art, curtains, furniture and wall colour. They do not redraw the room layout.

Read how an interior architecture firm should work.

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