A Wareemba family knocks down and rebuilds: $780,000 fixed-price contract, construction loan approved, slab down.
The variations are paid by you unless the lender increases the facility, which needs a new assessment and valuation.
Lenders normally expect a contingency in the original figures, so a buffer of five to ten per cent of the contract, held in cash or inside the loan, is what keeps the build moving.
Part of the construction loans guide.
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Mid-build finance changes are slow precisely when speed matters: a loan increase means reassessment and revaluation while the builder's invoice ages. This family had two of the three, which is why the story ends with a finished house.
The protective structure exists before the first slab: a genuine cash buffer outside the loan, borrowing capacity deliberately left in reserve rather than maxed at approval, and variations signed only with their funding identified.
Before approval: the contract's provisional sums and prime-cost items read line by line, the real overrun risk lives there, not in the headline price. Capacity structured with reserve rather than borrowed to the ceiling.
During the build: each variation costed against the remaining buffer before signing, and the loan top-up started early, at the first sign the buffer would not stretch, not the week the builder's payment fell due.
Construction lending's progress-payment structure protects borrowers from paying for work that never happens, but it makes mid-build funding changes inherently slow. The planning consequence is blunt: the buffer is not optional, and borrowing the absolute maximum at approval is how builds end up half-finished.
Where a genuine overrun exceeds every reserve, the frank conversation covers equity, staged completion of non-essential items, and variation negotiation, before arrears do the negotiating.
Read the provisional sums before you admire the render. Plan ten to fifteen per cent above contract, in cash or reserved capacity, and treat it as spent the day you sign. Fund variations when you approve them.
And if the buffer is running out, raise it with your broker at the first sign, mid-build problems are solvable early and expensive late.
Because builds run over, in both time and cost. Progress payments draw the loan down in stages, and a contingency held back from day one is what stops a variation or delay becoming a crisis.
The lender pays the builder directly at set stages, usually after an inspection confirms the stage is complete. Construction loans walks through the sequence.
Variations need funding, and increasing an approved construction loan mid-build is slower and harder than building headroom in at approval. That is the argument for sizing the loan before the first slab.
Thirty minutes with Charles before you sign a building contract: the provisional sums read properly, and a funding structure with room for the build you'll have.
Prefer a callback?Charles calls back within one business day. No documents needed yet.
This is an illustrative example scenario, not a description of a specific client and not a testimonial. The figures are realistic but rounded, no lender is named, and no outcome is promised, every application is assessed on its own facts. General information only, not credit or financial advice.
