When you buy house-and-land here you're usually signing two contracts: one for the land and one for the build. The land settles when the title issues, the build draws down in stages as it goes up, and the two are assessed together but funded separately. It's completely manageable — but it's not the same product as a standard purchase, and a lender who's casual about construction lending will make it harder than it needs to be.
The thing that catches people out is timing. Titles in a growth corridor slip. A registration date quoted as "late this year" can become next year, and loan approvals do not last forever — most run around 90 days. If your land settles after your approval lapses, you're re-assessed on your circumstances at that moment, not the ones you had when you signed. I keep an eye on that window, re-verify early, and make sure a delayed title is an inconvenience rather than a crisis.
The other question I get constantly in Clyde is what the true cost of the build actually is. Display-home pricing and site-specific pricing are rarely the same number once you add site costs, a sloping block, retaining, fencing, landscaping, driveways, blinds and a clothesline. Borrowing capacity should be set against the finished cost, not the base contract.