Do I Need an Interior Designer or an Architect? Here’s How to Decide

Introduction

When planning a home renovation, extension, or new build, one of the first questions homeowners ask is: Do I need an interior designer or an architect? While both professionals play a crucial role in creating functional and aesthetically pleasing spaces, their expertise differs significantly.

Choosing the right professional for your project can save time, money, and ensure your vision is executed properly. In this guide, we’ll break down the differences between an interior designer and an architect and help you determine which one is best suited for your needs.

a white kitchen with white benchtops and natural materials

What Does an Architect Do?

An architect focuses on the structural design, engineering, and overall building framework of a space. Their role includes:

  • Designing and drafting building plans

  • Ensuring the structure meets building codes and regulations

  • Planning the placement of walls, windows, and support beams

  • Coordinating with engineers and builders for construction

  • Overseeing the construction process to ensure the design is executed correctly

An architect is essential when you need major structural changes, extensions, or new builds.

What Does an Interior Designer Do?

An interior designer specialises in the functionality, aesthetics, and usability of interior spaces. Their expertise includes:

  • Space planning and layout optimisation

  • Material, colour, and finish selection

  • Custom joinery and cabinetry design

  • Lighting, electrical, and plumbing planning

  • Coordinating with trades and suppliers to execute the design

An interior designer is essential when you want to transform an existing space, improve functionality, or create a cohesive design vision.


Do You Need an Architect or an Interior Designer? Key Considerations

The right professional depends on the scope of your project. Here’s how to decide:

Choose an Architect if:

  • You are building a new home from scratch

  • You need to remove or add walls for structural changes

  • You are extending your home or adding a new level

  • You need help obtaining building permits and approvals

  • Your project involves significant construction work

Choose an Interior Designer if:

  • You want to improve the layout and functionality of your home

  • You need expert advice on materials, colours, and finishes

  • You are renovating your kitchen or bathroom

  • You need custom joinery or built-in cabinetry

  • You want a seamless and cohesive interior design throughout your home

At Kaas Interiors, we specialise in full-service interior design for homeowners who want a beautiful and practical space without the stress of managing the details.

a timber butlers pantry with natural stone benchtops and a coffee machine nook

Can an Interior Designer and Architect Work Together?

For some projects, both an architect and an interior designer may be required.

For example:

  • If you are building a new home, an architect will create the structural framework, while an interior designer ensures the interior flow, functionality, and finishes align with your lifestyle.

  • If you are making structural changes to your home, an architect will ensure safety and compliance, while an interior designer will optimise the new space for comfort and aesthetics.

Collaborating with both professionals can create the best possible outcome.

Why Hiring an Interior Designer Can Save You Time and Money

Many homeowners assume they only need an architect for their project. However, hiring an interior designer early in the process can help you:

  • Avoid costly mistakes in material and layout decisions

  • Ensure a cohesive interior design from the start

  • Get access to trade discounts on finishes and materials

  • Maximise space efficiency and create a home that fits your lifestyle

At Kaas Interiors, we work with homeowners to transform interiors into spaces that are both beautiful and practical, ensuring every design detail is executed to perfection.


Conclusion: Who Should You Hire?

Hire an Architect if:

  • You need structural changes, an extension, or a new home build.

  • You require engineering and regulatory approvals.

  • Your project involves significant construction modifications.

Hire an Interior Designer if:

  • You are renovating, updating, or optimising your home’s interior.

  • You want a functional, cohesive, and visually appealing space.

  • You need help with material selection, space planning, or custom joinery.

If you are ready to transform your home, Kaas Interiors is here to help.

Let’s create a home you love! Schedule your free consultation today and let’s get started.

Interior designer standing in kitchen

About Us

At Kaas Interiors, we have been designing interior spaces from simple kitchens to entire household joinery fit-outs since 2013 and love every minute of the design process. We understand that every job comes with its own unique set of challenges and relish at the opportunity to solve them through good design. We specialise in mid to high-end projects with a particular flair for Hamptons and Provincial work and have won multiple design awards from the well-respected industry bodies HIA and AFCA for various past projects.





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What’s Included in an Interior Design Package? A Breakdown

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10 Questions to Ask Before Hiring an Interior Designer