Building a New Home: Finance - What You Need to Know Before You Start

Building a new home is an exciting journey, but before you start choosing floorplans or dreaming about finishes, there’s one critical first step - getting your finances in order.

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Understanding your borrowing power and securing finance early will save you time, stress, and costly mistakes down the track. In this guide, we’ll walk you through everything you need to know about the finance stage of building a new home.

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Why Finance Is the First Step in Building a Home

Many people jump straight into browsing house designs or land listings. But, without a clear budget, it’s easy to fall in love with something that’s out of reach.

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Starting with finance allows you to:

• Set a realistic budget 
• Understand your borrowing capacity 
• Narrow down suitable locations 
• Avoid delays once you’re ready to build 

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Speak to a Broker or Bank

The first move is to talk to a mortgage broker or your bank.

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A broker can:

• Compare multiple lenders on your behalf 
• Find competitive interest rates 
• Help tailor a loan to suit construction builds 
• Guide you through the application process 

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Alternatively, going directly to your bank may be simpler if you already have a relationship with them, but you’ll be limited to their products only.

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Understand Your Borrowing Capacity

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Your borrowing capacity is the amount a lender is willing to loan you based on your financial situation.

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This is calculated using:

• Your income 
• Existing debts (credit cards, car loans, HECS/HELP etc) 
• Living expenses 
• Credit history 

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Knowing this figure early helps you:

• Set a realistic total budget (land + build) 
• Avoid overcommitting financially 
• Plan your deposit and savings 

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Obtain Pre-Approval (Valid for 90 Days)

Once you’ve reviewed your finances, the next step is to get loan pre-approval. This is when a lender conditionally agrees to lend you a certain amount, subject to final checks.

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Key benefits:

• Gives you confidence to start house hunting 
• Shows landowners/developers and house builders that you’re a serious buyer 
• Speeds up the process once you find land 

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Understand Where You Can Afford to Buy Land

With pre-approval in place, you can start exploring locations that match your budget.

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Consider:

• Land prices in different suburbs or estates 
• Proximity to work, schools, and amenities 
• Future growth potential 
• Council requirements or zoning restrictions 

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This step helps you balance lifestyle goals with financial reality. Read our guide to choosing a block of land.

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Determine Your Building Budget

Once you know how much you can borrow and what land costs, the next step is to allocate your build budget.

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Your total budget should include:

• Land purchase price 
• Construction costs 
• Site costs (e.g. soil, slope, drainage) 
• Upgrades and finishes 
• Contingency buffer 

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Getting your finance sorted is the foundation of a smooth home building journey. By speaking to a broker or bank, understanding your borrowing capacity, and securing pre-approval, you’ll be in a strong position to confidently move forward.

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Once this step is complete, you can begin the exciting process of choosing land and designing your dream home.

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