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New Home, New Grant Rules: Open the Door to Dual Key Homes for First Home Buyers

Modern dual home key suitable for first home buyers
From 1 October 2025, the First Home Buyers Grant thresholds are increasing across Australia. In Perth, for example, the cap jumps from $600,000 to $850,000 – creating a unique opportunity for first home buyers, as it allows us to package up dual key homes within this new threshold. As we have covered before relying on capital growth alone doesn’t cut it no more. 

Our dual key home strategy allows you to live in one side while renting out the other, creating smart rental income from day one.

The Product: Dual Key Homes for First Home Buyers

Our new dual key homes for first home buyers in Perth offers:

  • Main home: 3 bed / 2 bath

  • Secondary unit: 1 bed / 1 bath

  • Full turnkey package: $850,000

floor plan for Perth first home grant dual key home with main and secondary living areas
This dual key design is created for first home buyers who want to get ahead, not just get in.

The Smart Structure

Borrowings to live in your property is what we call bad debt as it gives you more expenses rather than generating cash flow. A property that’s fully paid by tenants is good debt.

This dual key strategy sits somewhere in between. You live in one part and rent out the other, meaning the income generated helps you but, it’s not enough to pay for the investment. Therefore, you should structure your loan to pay it down faster.

Here’s the correct financial structure:

  • Rent from the smaller unit is paid directly into your mortgage offset account

  • You pay the same monthly amount as a standard loan

  • You save $400,000+ in interest and cut your term down to around 16 years instead of 30

    Comparison of regular vs smart loan structure in dual key homes for first home buyers
    Source: Easiloans Mortgage Calculator

Why This Matters 

This structure makes your home work for you:

  • Rental income from day one

  • Shorter mortgage term

  • Lower total interest costs

  • First Home Buyers Grant eligibility

Take the Next Step

Want to see how this could work for you?

Contact us today to learn more about securing your first home buyers grant dual key home before packages sell out.

Written by Asle Kommedal

Topstone Property Invest

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