Buy Established or Build New in Kwinana?
Key takeaways Established homes are ready now, in settled streets, with mature gardens and no build risk. New builds and land offer…
July 2, 2026
Key takeaways
Most buyers save hard for a deposit, then get surprised by everything else. The costs around a purchase are not hidden by anyone on purpose, but they are easy to miss until they all arrive at once. Here is the full list, so nothing catches you out.
| Cost | Typical range | What it is |
|---|---|---|
| Transfer duty | Thousands, on a sliding scale | The WA state tax on the purchase |
| Settlement agent | $600 to $1,200 | Handles the legal transfer |
| Building and pest inspection | $400 to $800 | Checks the home before you commit |
| Lender and valuation fees | $0 to $1,000 | Set up and assess your loan |
| Lenders mortgage insurance | Varies, can be large | Applies if your deposit is under 20% |
| Home insurance | From settlement | Cover the home from day one |
| Rates adjustments | A few hundred | Your share of council and water rates |
The ranges are a guide, not a quote. Your figures depend on your price, your lender and the property.
Transfer duty is usually the biggest extra. It is calculated on the purchase price, and first home buyers may pay a reduced rate. We explain it fully in WA stamp duty explained.
If your deposit is under 20% of the price, most lenders charge lenders mortgage insurance. It protects the lender, not you, and it can add thousands. Keystart, the WA government lender, does not charge it, which is why many first home buyers start there.
A building and pest inspection is money well spent. It can find a problem that saves you far more than the fee, or give you room to renegotiate before you are locked in.

Good to know. A sensible rule is to keep a buffer beyond the deposit for these costs, so settlement week does not leave you stretched.
Planning your purchase and want a second set of eyes on the numbers? We are locals and happy to help.