Property Valuation and Home Loans: What Borrowers Need to Know

A property valuation determines how much a lender will actually lend against a property, regardless of what you agreed to pay.

The purchase price is the figure you and the seller agreed on. The valuation is the figure the lender's valuer thinks the property is worth. The lender will calculate your loan to value ratio using whichever figure is lower. If the valuation comes in under the purchase price, your deposit instantly becomes a smaller percentage of what the lender considers the asset to be worth, and your borrowing capacity can fall with it.

How Lenders Use Property Valuations to Calculate Your Loan Amount

Lenders calculate your loan to value ratio by dividing the loan amount by the lower of the purchase price or the valuation figure. If you applied for an 80% LVR loan on a property purchased for $850,000 and the valuation returns at $820,000, the lender will base your loan amount on $820,000. That means a maximum loan of $656,000, not $680,000. Your deposit requirement just increased by $24,000.

This happens more often than borrowers expect, particularly in suburbs where sale prices are rising faster than valuers can verify comparable sales. In markets like Bulimba or New Farm, where properties occasionally sell above the median after competitive bidding, a valuation shortfall of 3% to 5% is not unusual. The lender needs recent, comparable evidence to support the price you paid, and if that evidence is thin or inconsistent, the valuer will take a conservative view.

When Valuations Fall Short in Brisbane's Inner Suburbs

A borrower purchasing a renovated Queenslander in Morningside for $920,000 with a 10% deposit expects to borrow $828,000. If the valuation returns at $880,000, the lender will only approve a loan based on $880,000. At 90% LVR, that is a maximum loan of $792,000. The shortfall is $36,000. The borrower either finds the additional cash, renegotiates the purchase price with the seller, or applies for lenders mortgage insurance to maintain the original loan amount at a higher LVR.

The valuation is not a commentary on whether you overpaid. It reflects the data available to the valuer at the time, the condition of the property, and how conservative the valuer's interpretation of recent sales happens to be. Two valuers can assess the same property within a fortnight and return figures $30,000 apart.

The Difference Between a Bank Valuation and a Pre-Purchase Building Inspection

A bank valuation assesses the market value of the property for lending purposes. A pre-purchase building inspection assesses the structural condition of the property for the buyer's protection. They serve different purposes and are commissioned by different parties. The bank orders the valuation and uses it to determine how much it will lend. You commission the building inspection to identify defects, safety issues, and maintenance concerns before you commit to the purchase.

The valuer may note visible defects or structural concerns in their report, and those observations can reduce the valuation figure. However, the valuer is not required to conduct a full building inspection, and their report will typically include a disclaimer to that effect. If the property has obvious signs of water damage, structural cracking, or incomplete renovation work, the valuation will reflect those issues, but it will not provide the same level of detail as a qualified building inspector's report.

How Valuation Outcomes Affect Your LVR and Borrowing Capacity

Your loan to value ratio affects whether you need to pay lenders mortgage insurance, whether you qualify for certain home loan products, and whether the lender will approve your application at all. Most lenders cap their standard residential lending at 95% LVR, though some will lend at 90% without LMI depending on your deposit source and employment type. If the valuation reduces your effective LVR from 85% to 88%, you may still avoid LMI. If it pushes you from 90% to 93%, LMI becomes a cost you did not budget for.

Borrowing capacity is recalculated based on the revised loan amount and the revised LVR. If the valuation shortfall means you need to increase your deposit, that may reduce the cash buffer you have available for settlement costs, which in turn may affect the lender's assessment of your genuine savings position. First home buyers using the Australian Government 5% Deposit Scheme need to be particularly aware of this dynamic, as both the purchase price and the lender's assessed value must be at or below the applicable price cap for the scheme to apply.

What Happens When a Valuation Comes in Over the Purchase Price

If the valuation comes in above the purchase price, the lender uses the purchase price to calculate your LVR. You do not receive a larger loan simply because the valuer assessed the property at a higher figure. The lender's exposure is determined by what you are borrowing, not by what the property might be worth in a different transaction. However, a higher valuation does give you immediate equity in the property, which can be useful if you plan to refinance, access an offset account structure, or use that equity to invest in property in future.

Can You Challenge a Valuation That Seems Too Low?

You can request a second valuation, but whether the lender will order one depends on their internal policy and whether you can demonstrate a clear basis for the challenge. Lenders will sometimes agree to a second valuation if you provide recent comparable sales data that was not available to the original valuer, or if the valuation report contains an obvious error such as incorrect property dimensions or the wrong number of bedrooms. The cost of the second valuation is typically borne by the borrower.

If the second valuation comes in higher, the lender may accept the revised figure. If it comes in at a similar level to the first, the lender will usually proceed with the lower of the two. Some lenders will take an average of the two figures if the gap is within a certain threshold. In our experience, second valuations rarely shift the outcome by more than 2% to 3%, and the time delay involved can create contract deadline issues if your finance clause is nearing expiry.

Portable Loans and Valuation Requirements When You Move

If you have a portable loan and plan to move from one property to another, the lender will require a valuation on the new property before approving the transfer of your loan. The valuation on the property you are selling determines how much equity you can release for your deposit on the new purchase. The valuation on the property you are buying determines whether your existing loan amount is acceptable against the new security.

If the new property's valuation comes in below the purchase price, you may not be able to port the full loan amount, even if your original loan was approved at a higher LVR. The lender reassesses the transaction as if it were a new purchase, applying current serviceability rules and current LVR limits. If you were relying on a full loan port to avoid break costs on a fixed rate loan, a valuation shortfall can force you to either increase your deposit or accept the break costs and refinance to a different lender.

Call one of our team or book an appointment at a time that works for you. We work with lenders across Australia and can help you understand how valuations affect your loan structure, deposit requirements, and settlement timeline before you make an offer.

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