Interior Designer vs. Interior Decorator: Key Differences Explained

When it comes to transforming a space, many people use the terms “interior designer” and “interior decorator” interchangeably. While both professions focus on enhancing the aesthetics and functionality of interior spaces, there are key differences in their training, responsibilities, and scope of work. Understanding these distinctions can help you choose the right professional for your project.

What Is an Interior Designer?

An interior designer like Stephanie Charest Interior Design is a trained professional who works with both the aesthetics and the functionality of a space. They often have formal education in design principles, architecture, and spatial planning. Many interior designers hold degrees from accredited institutions and may be certified or licensed depending on regional regulations.

Key Responsibilities:

  • Space planning and layout

  • Structural modifications (e.g., moving walls, reconfiguring floor plans)

  • Coordinating with architects, contractors, and engineers

  • Ensuring compliance with building codes and safety standards

  • Selecting materials, finishes, lighting, and furnishings

  • Managing project budgets and timelines

Interior designers often work on renovations or new builds and are involved from the early stages of a project. Their goal is not only to make a space look good but also to ensure that it functions well for the people using it.

What Is an Interior Decorator?

An interior decorator, on the other hand, focuses primarily on the visual aspects of a space. Decorators do not usually participate in structural or architectural planning. Instead, they come in once the space is structurally complete to enhance its look and feel through the use of color, furniture, accessories, and artwork.

Key Responsibilities:

  • Selecting color schemes, furniture, and décor

  • Arranging furniture and accessories for aesthetic appeal

  • Choosing window treatments, rugs, and lighting

  • Updating or refreshing the look of a space

  • Working within a set theme or style

While formal education isn’t required to become a decorator, many have training in interior decorating, art, or related fields. Decorators rely heavily on creativity, trend knowledge, and a keen eye for detail.

Education and Credentials

One of the most significant differences between the two professions is education. Interior designers typically complete formal education—often a bachelor’s degree—and may be required to pass a licensing exam (like the NCIDQ in North America). They may also need to meet continuing education requirements to maintain their credentials.

Interior decorators, however, are not licensed or regulated in most regions. While many take courses or earn certifications in decorating, it’s not a legal requirement. This means that anyone can technically call themselves a decorator, though experience and portfolio quality often distinguish professionals from hobbyists.

When to Hire a Designer vs. a Decorator

Hire an interior designer when:

  • You’re doing a renovation or new build

  • You need help with structural changes

  • You’re moving walls, updating plumbing or electrical, or changing layouts

  • You want a cohesive design that balances function, safety, and style

Hire an interior decorator when:

  • You’re updating the look of an existing space

  • You want help selecting furnishings and accessories

  • You need guidance on colors, fabrics, and finishes

  • Your project is cosmetic rather than structural

Collaboration and Overlap

While the roles are different, designers and decorators sometimes work together. A designer might bring in a decorator to finish off a space once structural changes are complete. Likewise, a decorator may consult a designer if a client decides to take a project beyond aesthetic updates.

Both roles require creativity, an eye for detail, and a deep understanding of style. The difference lies in the scope of their work and how early in the process they are involved.

Understanding the difference between an interior designer and a decorator helps you choose the right professional for your needs. If your project involves construction, layout changes, or compliance with codes, a designer is the way to go. If you’re focused on furnishings, finishes, and style, a decorator may be the perfect fit. Either way, both can help you create a beautiful and personalized space you’ll love.