The structure, from settlement to strata plan.
Land debt into construction debt
If the site carries a mortgage, it refinances into the construction facility before demolition, no lender lets its security be bulldozed casually. Approval, then demolition, in that order, always.
Two-dwelling end value
The lender’s valuer prices the completed pair against local duplex sales, and Russell Lea now has plenty. The loan sizes off that end value and your income; the gap between build cost and end value is your project margin, not your borrowing power.
Subdivision and release
Selling one side needs the plan registered and the lender’s partial release priced in. The sequence, occupation certificate, subdivision, release, sale, has a timeline that your interest bill runs through, so it belongs in the budget with everything else.
Keep-one structures
Keeping a side to live in and renting or selling the other changes the split of deductible and private debt. Getting that split structured correctly at loan setup, not reconstructed later, is one of the cheapest pieces of foresight in the whole project.
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