If you've started looking at property, you've probably heard both terms thrown around like they mean the same thing: "pre-approval" and "full approval." They don't — and mixing them up is one of the most common (and costly) misunderstandings buyers run into. Here's what each one actually means, and why the gap between them matters more than most people realise.
What is pre-approval?
Pre-approval — sometimes called conditional approval or "approval in principle" — is a lender's early assessment of how much they'd likely be willing to lend you, based on your income, expenses, existing debts, credit history and deposit. You provide documentation (payslips, bank statements, ID, details of any other loans), the lender runs it through their servicing calculator, and if it stacks up, they issue a pre-approval letter with an indicative borrowing amount.
It's not a guarantee, and it's not tied to a specific property — it's a green light that says "based on what you've told us, this is roughly what we'd lend you." It usually stays valid for a few months, though the exact window varies by lender.
What is full approval?
Full — or "unconditional" — approval happens once you've found a specific property and signed a contract. At this point, the lender does the checks it couldn't do before: a formal valuation of the actual property, a final review of your financial position, and (if relevant) mortgage insurer approval. Only once all of that clears do you get unconditional approval — the actual green light to proceed to settlement.
Why the gap between the two matters
Pre-approval is genuinely useful — it tells you your realistic budget before you start inspecting, and it signals to agents and vendors that you're a serious, finance-ready buyer. But it's not a done deal, and treating it like one is where buyers get caught out. A few things can still derail things between pre-approval and settlement:
- The property itself. If the valuation comes in lower than the purchase price, or the lender has restrictions on certain property types (small apartments, rural land, some off-the-plan builds), that can change what they'll lend against it.
- Your financial position changing. New debt (even a car loan or a new "buy now, pay later" account), a change of job, or a drop in overtime/bonus income can all affect what a lender is willing to confirm at the full-approval stage.
- Time passing. If your pre-approval expires before you find a place, you'll usually need to refresh it — and lender policies do shift.
How to protect your finance between the two
- Avoid taking on any new debt or big purchases on credit while house-hunting.
- Keep your spending patterns steady — lenders reassess your bank statements at full approval, not just at pre-approval.
- Try not to change jobs mid-process, or talk to your broker first if you're considering it.
- Treat your pre-approved amount as a ceiling, not a target — borrowing comfortably below it gives you a buffer if anything changes.
The good news: none of this is something you need to navigate alone. Part of what a broker actually does — beyond just comparing rates — is picking a lender whose policies suit your specific situation from the start, so there are fewer surprises between pre-approval and settlement.