How Much Does an Interior Designer Cost?

One of the most common - and reasonable questions homeowners ask is “How much does an interior designer cost?”

In all cases, the answer depends on scope, complexity and the level of professional involvement required.

Interior design is not about decoration alone. It is a considered, technical service that protects your investment and ensures your home functions beautifully for years to come.

Common Interior Design Fee Structures

Hourly Consultations
Best suited to advice-only sessions, second opinions or smaller design challenges.

Fixed Fee Packages
Ideal for renovations and new builds, providing clarity and cost certainty from the outset.

Percentage of Build Cost
Often applied to larger or highly detailed projects where scope evolves alongside construction.

What Are You Paying For?

Professional interior design services typically include:

  • Space planning and layout optimisation

  • Material, finish and colour specification

  • Lighting and electrical planning

  • Custom joinery and cabinetry detailing

  • Detailed schedules and documentation for builders

  • Ongoing coordination during construction

This level of documentation alone can prevent costly errors, delays and variations on site.

What Influences Cost?

  • Size and complexity of the project

  • Renovation vs new build

  • Level of custom detailing

  • Builder and trade coordination required

A Note on Credentials

When hiring an interior designer, it’s essential to ensure they are:

  • Fully insured

  • Fully qualified

  • A registered member of the Design Institute of Australia (DIA)

  • Preferably also affiliated with the Housing Industry Association (HIA)

These credentials indicate professionalism, accountability and industry-recognised standards.

Final Thoughts

Interior design is an investment in longevity, functionality and peace of mind.

👉 For a tailored proposal aligned with your home and lifestyle, we invite you to get in touch.

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