Finance has to follow the build, not just the purchase price.
A construction loan is not released as one lump sum. Funds are drawn progressively against your building contract as work is completed, and the total cost of the project, land, build, and everything around it, needs to be understood before you sign anything, not discovered partway through.
How the funding actually works
Before approval, the lender wants to see your land position (owned, or being purchased alongside the build), a fixed-price building contract, approved plans and specifications, your builder’s details, and a total project cost that covers everything, not just the headline build price. During construction, funds are released by stage against builder invoices, generally after the required evidence or inspection process for that stage. Interest is typically charged only on funds actually drawn, not the full approved facility, see what happens at each progress payment for the full stage-by-stage breakdown.
Land / existing security
What happensLand settles or land you already own is confirmed as security.
Useful evidenceContract or title position.
Finance effectSets the land debt, equity and security position.
Building contract
What happensFixed-price contract, specifications and payment schedule are reviewed.
Useful evidenceSigned building contract and specifications.
Finance effectConfirms the build cost and progress-payment structure.
Plans and approvals
What happensRequired plans, permits and builder documents are finalised.
Useful evidenceApproved plans and permits where required.
Finance effectFunding normally cannot start until required pre-draw items are complete.
As-complete valuation
What happensThe completed property value is assessed.
Useful evidenceValuation ordered by the lender.
Finance effectHelps determine lending value and construction LVR.
Formal approval
What happensLoan conditions and construction conditions are confirmed.
Useful evidenceSigned loan documents and outstanding conditions.
Finance effectThe facility becomes ready once remaining conditions are satisfied.
Client contribution
What happensRequired cash or equity contribution is used as agreed.
Useful evidenceEvidence of available funds.
Finance effectTiming can affect when lender funds begin.
Base / slab
What happensFoundations, footings and slab or flooring stage are completed.
Useful evidenceBuilder progress claim.
Finance effectAn early draw increases the amount on which interest may be charged.
Frame
What happensWall and roof framing is completed.
Useful evidenceBuilder progress claim.
Finance effectA further progress draw is released subject to the lender process.
Lock-up / enclosed
What happensRoof, walls, windows and external doors are completed.
Useful evidenceProgress claim and any required inspection.
Finance effectAnother progress draw, subject to the lender process.
Fixing / fit-out
What happensInternal cabinetry, fixtures and finishes progress.
Useful evidenceProgress claim.
Finance effectMost of the facility may be drawn by the later stages.
Practical completion
What happensThe contracted work is substantially complete.
Useful evidenceCompletion documents, inspection and certificates.
Finance effectFinal conditions are checked before the last draw.
Final draw / ongoing loan
What happensFinal payment is released after completion requirements are satisfied.
Useful evidenceFinal lender and builder requirements.
Finance effectThe construction facility moves to the agreed ongoing loan structure.
General information only. Your building contract, lender conditions and construction documents determine the actual stages and payment requirements.
Want to see the interest cost, not just the process? The Calculator Lab‘s Construction draw interest tool lets you enter a facility amount, illustrative rate and your own progress-payment schedule to see how interest builds up as each stage draws down, an illustration, not a lender repayment quote.
Product features during a build
- Interest-only during construction, converting after, a common structure, though not universal; some lenders offer P&I throughout
- Fixed or variable, availability and how rate-lock works during a construction period differs by lender
- Offset/redraw during the build, not always available on the construction phase itself, even if the same product offers it once converted
- Land + build vs turnkey vs house & land package, these are structured differently and can involve different lenders, contracts and risk
What can derail a construction loan
Variations, client-requested changes, unexpected site conditions, or cost increases between contract signing and construction, can create a funding gap if total costs rise beyond the approved facility. Builder insolvency partway through a project, while uncommon, is a real risk worth understanding upfront. And timing is rarely a single guaranteed number: pre-construction admin, council approvals, site works, the build itself, and weather, labour or material delays all affect the schedule differently on every project. Treat any timeline you’re given as indicative, not a guarantee.
First home buyer building? Check government support separately
Building can open different government support from an established purchase. Use Government Support to check the official source for your state or territory before relying on a grant or duty concession. Enter a confirmed amount in Funds Position only after checking the eligibility and payment timing:
Open Government Support and official links
A grant and a duty concession are separate forms of support. Off-the-plan, house-and-land, vacant-land and construction transactions can have different rules. Use Government Support to reach the current official source for your state or territory, and confirm the treatment of your contract before relying on a benefit.
Off-the-plan is a different scenario again
Buying off-the-plan carries its own considerations that a straightforward new-build doesn’t: a deposit paid well before settlement, a settlement date that may be much later than the contract date, valuation risk if the market moves between contract and completion, and finance/pre-approval that can expire before settlement actually happens. Sunset clauses and other contract-specific terms are a conveyancer/solicitor matter, not a lending one, this is general information, not legal advice.
What to prepare
- A fixed-price building contract with a clear progress-payment schedule
- Council-approved plans and specifications
- Evidence of your land position, owned outright, or being purchased as part of the same deal
- A contingency buffer, separate from the approved loan, for variations and cost movements
- Confirmation of which government grants/concessions your specific contract type qualifies for, checked against current official rules
Next step: talk with KartikKumar before signing a building contract, the funding structure needs to fit the project, not the other way around.