When refinancing, your bank’s property valuation can make or break your approval. Lenders use either a desktop valuation (data-based estimate) or a full valuation (inspector visit). The result determines how much equity you can access and whether you qualify for a better deal. Here’s what you need to know about the process, common pitfalls, and how to prepare your home to maximise value.
What Is a Bank Valuation?
When you refinance, lenders need an updated opinion of what your property is worth. This figure—called the bank valuation—determines your available equity, maximum loan size, and whether you’ll pay Lenders Mortgage Insurance (LMI).
Importantly, a bank valuation is often more conservative than what you see on real estate websites or what an agent might quote.
Why Valuations Matter in Refinancing
The valuation underpins three key areas:
- Borrowing Power – a lower valuation may reduce how much you can refinance.
- Loan-to-Value Ratio (LVR) – this affects whether you qualify for the sharpest interest rates.
- Equity Release – investors and upgraders rely on usable equity for deposits or renovations.
For example, if your property is worth $800,000 and the bank values it at $750,000, your borrowing capacity instantly drops, even if the market supports the higher figure.
Desktop Valuations: Pros & Cons
A desktop valuation is done online using data sources such as recent sales, CoreLogic, or price-model algorithms. No one visits the property.
Pros:
- Fast turnaround (often same day).
- No disruption (no property inspection required).
- Lower cost for the bank, often free for you.
Cons:
- Conservative estimates.
- Doesn’t reflect property improvements.
- Risk of undervaluation in unique suburbs or renovated homes.
Full Valuations: Pros & Cons
A full valuation involves a qualified valuer inspecting your home. They’ll measure, photograph, and compare it against recent sales in the area.
Pros:
- More accurate reflection of the property condition.
- Renovations and upgrades are considered.
- Higher chance of capturing true market value.
Cons:
- Slower turnaround (3–7 days).
- Invasive—someone enters your home.
- It can still be conservative compared to an agent’s appraisal.
How Lenders Decide Which Valuation to Use
The choice often depends on:
- Loan size and LVR. Higher LVR = full valuation is more likely.
- Property type (apartments and rural homes often need a full valuation).
- Location – properties in metro areas with numerous comparable sales may receive desktop approval.
- Policy settings – each lender has its own appetite for risk.
Practical Tips to Prepare for a Bank Valuation
If you’re booked in for a full valuation, treat it like a mini open home:
- Presentation matters – tidy up, mow lawns, declutter.
- Show improvements – keep receipts/photos for renovations or upgrades.
- Provide comparables – recent local sales can support your case.
- Fix small maintenance issues – peeling paint or broken gates can subconsciously reduce value.
Common Traps & Mistakes Homeowners Make
- Relying on agent appraisals only, banks almost always come in lower.
- Failing to prepare for inspection can swing values by tens of thousands.
- Assuming all lenders value equally, one bank may come in $30k lower than another.
This is why brokers often order multiple valuations before applying, to maximise your position. When selecting lenders, it is not always the bank with the lowest interest rate; it could be the lender with the highest valuation.
Why It Matters for Homeowners & Investors
- For homeowners: a higher valuation can unlock cheaper interest rates or faster debt reduction.
- For investors: usable equity determines whether you can fund the next property purchase.
Example:
A Brisbane client saw one lender value their townhouse at $620k while another came in at $675k. The difference allowed them to pull an extra $40k equity, enough for a deposit on their next investment.
Final Word: Getting the Best Result
Bank valuations can feel like a “black box,” but with the right preparation and lender strategy, you can influence the outcome.
Working with a mortgage broker means you’re not stuck with one lender’s opinion; you can shop for valuations and structure your refinance to get the best deal.
Pros & Cons Summary
Desktop Valuation
✔ Fast & free
✔ No inspection needed
✘ May undervalue
✘ Ignores upgrades
Full Valuation
✔ More accurate
✔ Includes renovations
✘ Slower & invasive
✘ Still conservative vs market