What is the Minimum Deposit to Build a House?

Thinking about building your dream home but not sure how much you need to get started? You're not alone. One of the most common questions from first-time builders is: "What’s the minimum deposit I need to build a house in Australia?" Whether you're looking into sleek modern homes or something more classic, understanding how deposits work — and how they’re affected by house designs and prices — is a crucial first step. Let's break it down in simple terms.

Jul 10, 2025 - 11:44
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What is the Minimum Deposit to Build a House?

Thinking about building your dream home but not sure how much you need to get started? You're not alone. One of the most common questions from first-time builders is: "Whats the minimum deposit I need to build a house in Australia?"

Whether you're looking into sleek modern homes or something more classic, understanding how deposits work and how theyre affected by house designs and prices is a crucial first step. Let's break it down in simple terms.

How Much Deposit Do You Need?

The short answer: most lenders will ask for a 5% to 20% deposit of the total land and build cost.

So, if the land and construction together cost $600,000, your minimum deposit could range from $30,000 to $120,000 depending on your financial situation, credit history, and the lender's policies.

Some banks or lenders may allow low-deposit home loans with as little as 5%, especially if you're a first home buyer or eligible for government schemes but it often comes with extra conditions.

What Impacts the Required Deposit?

Theres no one-size-fits-all answer when it comes to deposits. A few factors come into play:

1. Your Lenders Criteria

Different lenders have different rules. Some may approve a 5% deposit loan, but others may want 1020% to reduce their risk. If you're borrowing more than 80% of the propertys value, youll likely have to pay Lenders Mortgage Insurance (LMI).

2. Government Incentives

If you're a first home buyer in Australia, you could be eligible for grants like the First Home Owner Grant (FHOG) or the First Home Guarantee. These could help reduce your upfront deposit or even cover it entirely in some cases.

3. House Designs and Prices

The style and size of the home you want to build can significantly affect your deposit amount. For example, a simple three-bedroom design on a small block will cost less and therefore require a smaller deposit than a custom two-storey build with high-end finishes.

When comparing house designs and prices, its important to think beyond just aesthetics. Choose a design that fits your budget, not just your wishlist.

Land + Build = Combined Costs

Unlike buying an existing home, building involves two separate costs: the land and the build. Most lenders will calculate your deposit based on the combined value of both.

For instance:

  • Land price: $300,000
  • Build cost: $350,000
  • Total = $650,000
  • Minimum 5% deposit = $32,500

Keep in mind, your lender may want proof that you have genuine savings and can cover other upfront costs such as stamp duty, legal fees, and site preparation.

Tips to Get Started with a Smaller Deposit

If youre trying to enter the market sooner rather than later, here are some practical tips:

  • Look into low-deposit home loan options (just be aware of higher repayments or LMI).
  • Consider regional or outer-metro areas where land is more affordable.
  • Choose a builder offering fixed-price contracts this helps lenders assess your application more easily.
  • Explore grants and incentives tailored to new builds.

Final Thoughts

Building a home is a big dream for many Aussies, and the deposit is one of the first big hurdles to cross. While a 5% deposit may get your foot in the door, it pays to understand how lenders assess your situation and how house designs and prices can affect what youll need up front.

Take the time to plan, compare your options, and speak with a mortgage broker if you're unsure. A bit of research now can make the path to your new home much smoother.