A construction loan is different from a standard home loan because the bank does not hand over the full loan amount on day one. Instead, funds are released in a series of progress payments, often called drawdowns, that align with specific building milestones such as slab, frame, lockup, fixing, and completion. You only pay interest on the amount drawn down at each stage, not the full approved loan, which is one of the biggest differences first-time buyers need to understand before they start planning their savings. This guide steps through exactly how the drawdown schedule works, stage by stage.

Key Takeaways

• Construction loans release money in stages, not as one upfront lump sum, matching the pace of the actual build.
• The typical drawdown schedule follows five to six stages: deposit/land, slab, frame, lockup, fixing, and completion.
• You generally only pay interest on funds already drawn down, which usually keeps repayments lower during the build compared with a fully drawn loan.
• Your builder invoices the lender directly at each stage, and the lender typically arranges a valuation or inspection before releasing funds.
• Owner builders face extra scrutiny and documentation requirements, since there’s no licensed builder issuing standard progress invoices.
• Delays between stages are common and can affect your holding costs, so understanding the schedule early helps you plan your savings and buffer realistically.

What Is a Construction Loan and How Is It Different From a Home Loan?

A construction loan is a type of home loan specifically structured to fund the building of a new home or a major renovation, where the lender releases money progressively rather than all at once.

Key Differences From a Standard Home Loan

• Staged funding: Money is released as the build reaches agreed milestones, not as a single settlement payment.
• Interest calculated on drawn funds only: Most lenders charge interest only on the portion of the loan that has actually been paid out at each stage, which can mean lower repayments during construction.
• Valuations at each stage: Lenders typically require an inspection or valuation before releasing each progress payment, to confirm the work matches what’s being invoiced.
• Fixed-price building contract required: Most lenders want a fixed-price contract with a licensed builder before approving the loan, since it sets out the exact stages and costs upfront.
• Conversion to a standard loan: Once construction is complete, the loan usually converts to a standard principal and interest home loan.

If you’re still deciding between buying an established home or building, it’s worth comparing this structure against a standard home loan before you commit to a build.

What Does the Progress Payment Schedule Look Like, Stage by Stage?

Most residential construction loans in Australia follow a five to six stage drawdown schedule, though the exact structure can vary slightly between lenders and states.

1. Deposit and Land Stage

Before construction begins, this initial drawdown typically covers the deposit paid to your builder to lock in the fixed-price contract, and if applicable, settlement of the land itself.

2. Slab Stage (Base)

This drawdown covers the foundation work: site preparation, excavation, plumbing rough-in, and pouring the concrete slab. It’s usually one of the larger early drawdowns because it involves significant groundwork.

3. Frame Stage

Once the house frame, including walls and roof trusses, is erected and passes inspection, this drawdown is released. At this point the home starts to take a recognisable shape.

4. Lockup Stage

This covers external walls, roofing, windows, and doors being fitted so the property is fully enclosed and secure, hence “lockup.” This is often considered the halfway point of the build in terms of both time and cost.

5. Fixing Stage

This drawdown funds the interior fit-out: plasterboard, cabinetry, skirting boards, and other fixed internal elements. This is where the home starts to feel finished, even though final touches remain.

6. Completion Stage

The final drawdown is released once the build passes final inspection, all trades are finished, and the occupancy certificate is issued. This typically includes final fittings, painting touch-ups, driveways, and site cleanup.

Sample Stage Table

Stage	What It Covers	Typical Timing
Deposit/Land	Builder deposit, land settlement	Before construction starts
Slab	Excavation, plumbing rough-in, foundation	Weeks 1 to 3
Frame	Wall and roof frame, inspection	Weeks 3 to 6
Lockup	External walls, roof, windows, doors	Weeks 6 to 12
Fixing	Plasterboard, cabinetry, internal fit-out	Weeks 12 to 20
Completion	Final fittings, inspection, handover	Weeks 20+

Timing varies significantly by builder, region, and project size. These figures are illustrative only.

How Does the Drawdown Process Actually Work?

At each stage, a defined sequence needs to happen before funds are released to your builder.

The Typical Drawdown Sequence

1. Your builder completes the agreed stage of work.
2. The builder issues a progress invoice to you (or directly to the lender, depending on the process) reflecting the stage completed.
3. The lender arranges a valuation or inspection to confirm the work matches the invoice and the build is progressing as expected.
4. Funds are released directly to the builder, not to you personally.
5. Interest begins accruing on the newly drawn amount, added to whatever has already been drawn down in earlier stages.

What Can Delay a Drawdown

• Inspection scheduling delays with the lender’s valuer
• Incomplete or disputed builder documentation
• Weather delays affecting the build timeline
• Variations to the original building contract that haven’t been formally approved

Can You Get a Construction Loan as an Owner Builder?

Yes, but owner builder loans are considerably harder to obtain and come with tighter conditions than a standard construction loan with a licensed builder.

Why Owner Builder Loans Are More Complex

• Fewer lenders offer them, since the lender is relying on your project management rather than a licensed builder’s fixed-price contract.
• You’ll likely need trade quotes and a detailed cost breakdown for each stage, rather than a single builder’s contract.
• Higher deposit requirements are common, often reflecting the added risk lenders associate with owner-managed builds.
• You may need owner builder insurance and relevant permits specific to your state or territory before a lender will proceed.
• Drawdowns may be assessed more conservatively, with lenders wanting more evidence at each stage since there’s no licensed builder vouching for the work.

If you’re considering this route, speaking with a broker early is particularly valuable, since owner builder lending policy varies significantly from lender to lender.

Common Mistakes and Misconceptions

• “I’ll get the full loan amount upfront to manage myself.” Construction loans are paid directly to your builder at each stage, not released to you as a lump sum.
• “My repayments will be the same from day one as they will be once the home is finished.” Repayments typically increase progressively as more of the loan is drawn down, since interest is calculated on the outstanding balance at each stage.
• “Any delay in the build won’t affect my finances.” Delays between stages can extend the interest-only construction period, meaning you may pay interest for longer than originally planned, alongside continued rent or living costs.
• “I don’t need a buffer once my fixed-price contract is signed.” Variations, site conditions, and delays are common even with fixed-price contracts, so a savings buffer beyond the contract price is genuinely important.
• “All lenders handle construction loans the same way.” Drawdown processes, valuation requirements, and owner builder policies vary meaningfully between lenders.

Expert Tips and Best Practices

• Ask your builder for their typical stage timeline before you finalise your loan structure, so your drawdown schedule and cash flow expectations align realistically.
• Build in a contingency buffer. Unexpected site costs, variations, and delays are common in construction, and having a buffer avoids financial stress mid-build.
• Understand how your specific lender calculates interest during construction, since methods can differ slightly between lenders.
• Keep a paper trail of every stage invoice and inspection report. This protects you if there’s ever a dispute about work quality or payment timing.
• Speak with a broker before signing your building contract, not after, so your loan structure and building contract are aligned from the outset.

Conclusion

Understanding how construction loan progress payments work is one of the most important steps for first-time buyers estimating their savings targets, since it directly affects how much you’ll need at each stage, how your repayments will grow over the build, and how much of a buffer you should hold for delays or variations. The staged drawdown structure exists to protect both you and the lender, ensuring funds are only released as work is genuinely completed. With the right preparation and the right lending structure, it’s a well-understood and manageable process, not something to be nervous about.

Frequently Asked Questions

Do I pay interest on the full loan amount during construction?

No, in most cases you only pay interest on the portion of the loan that has actually been drawn down at each stage, not the total approved loan amount. This generally keeps repayments lower during the build than they will be once construction is complete and the loan converts to principal and interest.

How many stages are in a typical construction loan drawdown schedule?

Most residential construction loans use five to six stages: deposit/land, slab, frame, lockup, fixing, and completion. Some lenders or builders may combine or split these stages slightly differently.

What happens if my builder is delayed between stages?

Delays extend the period during which the loan remains in its interest-only construction phase, which can increase the total interest paid before the home is finished. It’s important to budget a buffer for potential delays rather than assuming the build will run exactly to schedule.

Can first-time buyers get a construction loan?

Yes. Many first-time buyers use construction loans to build a new home, particularly when combined with land purchase. The application and approval process is similar to a standard home loan, with the added requirement of a fixed-price building contract and staged drawdown structure.

Is an owner builder loan the same as a standard construction loan?

No. Owner builder loans typically involve fewer available lenders, more documentation, and closer scrutiny at each drawdown stage, since there’s no licensed builder providing a standard fixed-price contract and progress invoicing.

Ready to Plan Your Construction Loan?

If you’re planning to build your first home, getting your loan structure right from the start makes the entire process smoother. Skyline Brokers helps first-time buyers understand construction loan drawdown schedules, compare lenders, and plan realistic savings targets before they sign a building contract.

Speak with a construction loan specialist at Skyline Brokers →

You can also learn more about our construction loan services, explore support tailored to first home buyers, or use our calculators to help map out your savings plan before you speak with us.