The difference between interior design and interior decoration comes down to how far into the room you go. Decoration works with the space as it stands, choosing colour, furniture, fabric and finish. Design works with the space itself, deciding how it is used, how people move through it, where the light comes from and sometimes where the walls sit.
Both are real skills and both are paid work. If you are deciding which to train in, the distinction matters more than the job titles suggest.
What an interior decorator does
A decorator takes the room as it is and makes it work beautifully. Colour schemes, paint and wallpaper, furniture selection and placement, fabrics, window treatments, rugs, lighting fittings, art and accessories.
The skill is a trained eye plus real product knowledge: what a fabric will do after two years, how a paint colour behaves in north light, which pieces are worth the money. Nothing structural changes, and the work is usually quicker and less expensive for the client.
What an interior designer does
A designer starts earlier, with what the space needs to do and who is going to use it. That means space planning, circulation, lighting design, and specifying materials and finishes with an understanding of how they perform and what they cost.
It can include changing the space, moving or removing walls, reworking a layout, altering where light comes from. It involves working with builders, electricians and suppliers, and holding a project together from first brief to finished room.
The simplest way to hold the distinction: decoration is what the room looks like, design is how the room works. Every designer decorates. Not every decorator designs.
Can you do both?
Yes, and most working professionals do. In practice the line blurs constantly. A designer chooses cushions. A decorator suggests moving the sofa so the room reads better.
What you call yourself tends to follow the work you take. Many people start with decoration, because the projects are smaller and easier to win, then move into design as their confidence and client base grow. That progression is common enough to be the normal path rather than the exception.
Wondering which one suits you? Get the free course guide and see what the design side actually involves.
Which should you train in?
Train in decoration if you love colour, fabric and styling, want to start working sooner, and would rather not deal with builders and building regulations.
Train in design if you enjoy solving spatial problems, want the larger projects and the larger fees, and are happy to coordinate other trades.
Train in design if you are unsure. Design covers decoration inside it, so you keep both doors open. The reverse is not true, and it is the more common regret.
The Professional Interior Design Course covers both sides, from colour, materials and styling to reading a space and planning how it works. It is 12 tutorials with individual feedback from professional interior designers on every assignment, studied at your own pace with up to one year to complete.
Does the title affect what you earn?
Generally, design work pays more, because the projects are larger, the fees are bigger and the responsibility is greater. Decoration projects turn round faster, so volume can close some of the gap.
Neither title is protected in the UK, so the words themselves carry no authority. What earns the fee is the portfolio, the client relationship and being able to say honestly what you can and cannot do. Our guide to whether interior design is a good career covers the wider picture.
Common questions
Is an interior decorator the same as a painter and decorator?
No, and this trips people up. In the UK a painter and decorator carries out the physical work. An interior decorator chooses the scheme. Different trades entirely.
Do I need different qualifications for each?
Neither is regulated, so nothing is legally required. Our guide to interior design qualifications explains what employers and clients actually look for.
Where can I check what each job involves?
The National Careers Service interior designer profile describes the day-to-day work and the usual entry routes.
Which is better for working with people selling a house?
Decoration and styling, mostly. That is closer to home staging, and our guide to home staging covers it.
Where to go next
For the full route into the profession, read how to become an interior designer in the UK, or compare ways of training in our guide to interior design courses.
Love styling a room? You could turn it into a career.
If decorating is the part of your day you enjoy most, you can learn to do it properly. The Professional Interior Design Course teaches the craft, from reading a space to colour, lighting and styling, through 12 tutorials with course assignments and design briefs, and personal feedback from a professional interior designer on every one. Study at your own pace with no fixed schedules and take up to one year to complete. You will finish with your Diploma and Interior Designer ID Pass and a portfolio ready to show clients. Flexible payment plans are available, plus a no-risk 7-day money-back guarantee.
