An interior designer plans how a space works, from layout and lighting to construction drawings, and in some states needs a license to use the title. An interior decorator styles an existing space with color, furniture, and accessories, and needs no license. For a low-cost first look at a new style, House AI redesigns a photo of your room in about 15 seconds.
The two jobs overlap on furniture and color, which is why people mix them up. The split is in training, regulation, and how far into the building the work goes.
What an interior designer does
Interior designers make indoor spaces functional, safe, and good-looking by working out space requirements and choosing both essential and decorative items, according to the Bureau of Labor Statistics. They typically need a bachelor's degree. The BLS counted about 97,100 interior designer jobs in 2025, with a median annual wage of $67,190 in May 2025.
Licensing depends on the state. The BLS says some states let only licensed designers do interior design work, some let anyone do the work but reserve the title "interior designer" for licensed designers, and some regulate neither. Most regulated places use the NCIDQ exam, a three-part exam (IDFX, IDPX, and IDIX) run by CIDQ. In CIDQ's guide to regulated U.S. states and Canadian provinces, current as of August 2025, every one requires NCIDQ Certification except California.
What an interior decorator does
An interior decorator works on the look of a room that already exists: paint colors, furniture, fabrics, rugs, art, and how it all is arranged. Decorators don't move walls, draw construction plans, or handle building code questions. No national exam or license is required, so training varies from a design degree to none at all.
Designer vs decorator vs an AI app
| Question | House AI | Interior designer | Interior decorator |
|---|---|---|---|
| What it does | Redesigns a photo of your room in a new style | Plans layout, lighting, and construction details | Styles the room with color, furniture, and decor |
| Training or license | None needed to use it | Usually a bachelor's degree; license in some states | No license required |
| Cost | 3 free designs a day, then $9.99 per week or $39.99 per year | $100 to $500 per hour; $8,550 average project (Angi) | Varies by decorator |
| Speed | About 15 seconds per design | Depends on the project | Depends on the project |
| Plans walls, lighting, or construction | No | Yes | No |
| Best for | Seeing styles before you spend | Remodels, layout changes, and code work | Refreshing a room you already like |
Angi's 2026 cost guide puts the national average cost to hire an interior designer at $8,550, with most homeowners paying between $2,055 and $15,256.
Where House AI fits
House AI is a low-cost first step. Upload a photo of your room, pick from 300+ styles or describe the look in your own words, and compare a few directions before you hire anyone. It can't replace a designer. It doesn't measure your room, check codes, or plan wiring, and small details can drift between the render and real life. Bring the designs you like to a designer or decorator as a starting brief.
Frequently asked questions
Do interior decorators need a license?
No. Licensing rules in the U.S. cover interior designers, and they vary by state. Decorating work that stays on the surface, like paint, furniture, and accessories, has no license requirement.
Is an interior designer more expensive than a decorator?
It depends on the scope. Designers take on more of the project, and Angi puts designer rates at $100 to $500 per hour in 2026. Decorator rates vary from person to person.
Can an interior decorator move walls?
No. Moving walls, changing layouts, or drawing construction plans is design work, and it often needs a designer, an architect, or a contractor with permits.
Can an app replace an interior designer?
No. An app like House AI shows how a style looks on your room, but it doesn't measure the space, check building codes, or manage a project.
Keep reading
- What Is Interior Design? Definition, Principles, Types and Careers
- What Does Interior Design Cost in 2026?
- AI vs Traditional Interior Design: Which Is Right for You?
- Is AI Interior Design Any Good?
- House AI Pricing
Sources: U.S. Bureau of Labor Statistics, Occupational Outlook Handbook, "Interior Designers," last modified August 27, 2026. CIDQ, "Jurisdictions and Requirements," current as of August 2025. CIDQ, "About the Exams," updated September 22, 2026. Angi, "How Much Does an Interior Designer Cost?", updated August 31, 2026. All checked September 28, 2026. House AI figures come from the House AI app.