Construction Finance
Construction Loan Structures Explained
5 min read- Finance Guide
- Updated 2026
Quick answer
Staged release rather than one lump sum
6 Draw stages
Interest is usually charged only on the balance already drawn
- During construction Interest only common
- At completion Converts to end loan
- Security Land plus improvements
- Undrawn funds Usually no interest charged
1300 421 044
1300 421 044
Detailed explanation
Construction loan structures are designed to manage both lender risk and borrower cash flow. The lender is not just funding a finished home. It is funding land, building work, time, and completion risk. That is why the loan is usually segmented into multiple parts rather than structured the same way as a standard purchase loan.
How construction loans are structured
A typical construction loan structure can include:
land purchase funding or existing land equity- approved build contract amount
- staged progress payment schedule
- interest only period during the build
- conversion to an end loan after completion
Some borrowers need a land loan first and a construction loan second. Others combine land and build costs into one facility. If land is already owned, the equity in that site can often form part of the contribution to the project.
Progress draw stages
Most construction loan structures follow standard stages:
- 01 Deposit
- →
- 02 Slab or base
- →
- 03 Frame
- →
- 04 Lock up
- →
- 05 Fixing
- →
- 06 Completion
At each stage:
builder submits invoice- lender or valuer verifies completed stage where required
- funds are paid from the approved facility
- interest is applied only to the amount already drawn
Interest and repayments
During construction
interest only repayments are common- interest is generally charged on funds already used
- cash flow pressure is usually lower than full P and I
- undrawn funds are commonly not charged interest
After completion
-
the facility usually converts to the chosen end loan
-
principal and interest repayments often begin
-
some borrowers refinance or restructure at this stage
Need Help with your Project?
Common problems
Construction loan structures are flexible, but approval and funding issues can arise when the deal does not fit lender policy or the build changes mid project.
End value not sufficient
If the on completion value is lower than expected, the approved structure may not support the full project cost.
Possible solutions include:
- increase cash contribution
- use available land equity
- reduce scope or specification
- adjust the overall loan structure
Construction delays
Longer build times can affect the interest only period, valuations, and the planned timing of conversion to the end loan.
Possible solutions include:
- request an extension where policy allows
- update builder timeframes
- review repayment planning early
- refinance after completion if needed
Documentation incomplete
Construction structures depend heavily on complete contracts, plans, progress schedules, and insurance documents.
Possible solutions include:
- provide the fixed price contract
- supply approved plans and specifications
- confirm builder licence and insurance
- submit a full cost breakdown early
Steps to get Finance
Step
01
Confirm whether land is being bought, refinanced, or already owned.
Step
02
Obtain a fixed price building contract and progress payment schedule.
Step
03
Submit the full application with plans, costs, and financial documents.
Step
04
Lender assesses servicing, contribution, and completed value.
Step
05
Construction starts and funds are drawn progressively through the approved structure.
Step
06
After completion, the loan converts to its ongoing repayment structure.
Speak With A Construction Loan Specialist
Construction finance can be structured in different ways depending on whether you are buying land, already own land, building straight away, or planning to refinance after completion.
A specialist can review the proposed structure and help identify which lenders may suit the project and repayment strategy.
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