Interior Architect vs Interior Designer: What’s the Difference?

Published 2026-05-03 · 3 min read

Explore the key differences between interior architects and interior designers to make an informed choice for your renovation.

When it comes to renovating or designing a space in your home, you may come across the terms 'interior architect' and 'interior designer'. While both professions focus on creating functional and aesthetically pleasing environments, they differ significantly in terms of qualifications, scope of work, and approach. Understanding these differences can help you make the right choice for your renovation project.

Understanding the Roles

Both interior architects and interior designers play crucial roles in shaping interior spaces, but their expertise and responsibilities vary.

• Interior Architect: Typically involves a more technical approach, focusing on the structural aspects of a space. They often hold a degree in architecture and are trained to work with building codes, regulations, and structural integrity.
• Interior Designer: Primarily concerned with aesthetics and functionality. They consider colour schemes, furnishings, and layouts to create inviting spaces. While they may have formal training, they are not necessarily required to have an architecture degree.

Qualifications and Training

Understanding the qualifications and training of each profession can help you choose the right expert for your needs.

• Interior Architects: Usually have a bachelor's or master's degree in architecture. They must also be licensed to practice, which involves passing rigorous examinations and gaining practical experience.
• Interior Designers: May have a diploma or degree in interior design, but licensing requirements vary by state. Some may choose to pursue certification from recognised professional organisations.

Scope of Work

The scope of work for each profession can significantly impact your renovation project.

• Interior Architects: Often involved in large-scale renovations, new constructions, or when structural changes are needed. They can address issues like load-bearing walls and building layouts.
• Interior Designers: Focus more on the selection of furnishings, materials, and decor. They are ideal for projects that require aesthetic enhancement without major structural changes.

Choosing the Right Professional for Your Project

When deciding between an interior architect and an interior designer, consider the following:

• Project Type: If your renovation involves structural changes, an interior architect is typically the better choice. For cosmetic updates, an interior designer may be sufficient.
• Budget: Interior architects generally charge more due to their extensive training. Expect costs to range from AUD 100 to AUD 200 per hour, while interior designers may charge between AUD 70 to AUD 150 per hour.
• Collaboration: You may find that both professionals can work together effectively, providing a comprehensive approach to your renovation.

Cost Considerations

Understanding the costs involved can help you budget for your renovation effectively. Here are some typical costs associated with hiring these professionals:

• Interior Architect: The hourly rate can range from AUD 100 to AUD 200. Some may charge a flat fee based on the project's size and complexity.
• Interior Designer: Hourly rates typically range from AUD 70 to AUD 150. Others may charge a percentage of the total project cost or a flat fee for specific services.

For more detailed services related to renovation and design, consider visiting our services page.

Conclusion

Deciding whether to hire an interior architect or an interior designer ultimately depends on the specifics of your project. Understanding their qualifications, scope of work, and costs will help you make an informed decision. If you're ready to start your renovation journey, post a job today to receive free quotes from local tradies!

Frequently asked questions

What is the main difference between an interior architect and designer?

Interior architects focus on structural changes, while designers focus on aesthetics and furnishings.

What qualifications do interior architects have?

Interior architects typically hold a degree in architecture and are licensed to practice.

What is the average cost of hiring an interior designer?

Interior designers usually charge between AUD 70 to AUD 150 per hour.

Can interior architects and designers work together?

Yes, they can collaborate effectively on projects that require both structural and aesthetic expertise.

When should I hire an interior architect?

Hire an interior architect for projects involving structural changes or new constructions.