Pay for Your Build in Stages With a Construction Loan
Build on your own block in NSW this year, with the funding settled before your builder locks in a start date. A construction loan pays the builder in stages as the work is finished, so interest applies only to what has been drawn and the full repayment waits until you can move in.
What to Settle Before You Sign a Building Contract
Formal approval depends on a signed contract, and signing commits you before the funding is confirmed. A finance condition covers that gap where the builder accepts one, and your Sydney mortgage broker can tell you which lenders will fund the contract in front of you before it goes back for signature.
The builder's deposit comes from you. The Home Building Act 1989 (NSW) caps it at 10% of the contract price, and it falls due before the loan releases anything.
Payment schedules vary between builders, and lenders check how the percentages fall across the stages. A schedule paying more than half the contract by frame stage may be funded only once the builder revises it, which is a shorter conversation before signing than after.
Anything outside the contract stays outside the loan. Landscaping, driveways, fencing, window coverings and variations agreed once work starts are usually paid in cash, so the budget needs room for them.
What NSW Requires Before Work Starts
Residential building work valued over $20,000 including Goods and Services Tax (GST) needs home building compensation cover, and the builder has to give you the certificate before starting work or taking any payment, including the deposit, according to the State Insurance Regulatory Authority. Lenders ask for that certificate before the first release, so a builder who cannot produce one holds up the funding as well as the build. The NSW scheme is currently under review, so some of the detail may change.
Managing the work yourself is treated differently. An owner-builder permit from Building Commission NSW applies where the work is valued over $10,000, with an approved course required once it passes $20,000, and cover under the compensation scheme is not available for the work you carry out yourself.
Construction Loan Structures
Which structure applies depends on what is being built and whether you already hold the land:
House and Land Package Loans
The land settles first and the build is funded under a second contract. Two settlements bring two sets of costs, plus a period where you carry land interest before the slab goes down.
Single Contract Build Loans
One licensed builder handles the whole job on land you already own, under one fixed price contract. This is the structure lenders assess most quickly, since there is a single contract and a single security.
Knockdown Rebuild Loans
Demolition and the new build are funded together on the block you already hold, with demolition usually treated as the first stage. Equity in the land generally forms most of the deposit, and any existing mortgage is restructured into the new facility before work begins. How much of that equity a lender will release is covered by our equity loan broker service.
Major Renovation Loans
Extensions, second storeys and structural reworks are funded in stages instead of as a lump sum top-up. The lender values the property as it will be once finished, which can cap the work at less than the full plan where the suburb will not support the end value.
Secondary Dwelling Loans
A granny flat or second dwelling built on an existing residential block, usually for family or rental income. Approval turns on whether the site meets the relevant planning pathway and how much of the future rent the lender counts.
Duplex and Dual Occupancy Loans
Two dwellings on one title, either held or sold once complete. Lenders assess these more tightly than a single home, and several will want to know the exit plan before they price the loan.
Owner-Builder Loans
Building or managing the work yourself under a permit, with no licensed builder holding the contract. Few lenders take these on, and those that do typically lend a smaller share of the project cost and release funds only against work already completed.
Investment Property Build Loans
A build held for rental return instead of occupation. Forecast rent may support serviceability, though lenders discount the figure and none of it arrives until the property is tenanted.
Vacant Land Loans
Land bought now with the build to follow later. Some lenders set a deadline for construction to start, so that condition is worth checking before settlement.
Who a Construction Loan Suits and Who It Does Not
Whether building is the right call comes down to the position behind the contract:
Borrowers It Suits
Owners with council-approved plans and a licensed builder on a fixed price, where the land is already held or the deposit is settled. Building also suits people staying in a suburb they could not afford to buy into again, since transfer duty applies to the land and not to the cost of the build.
Borrowers It Does Not Suit
Anyone whose plans are still moving, or whose deposit only just covers the land with nothing left for a shortfall. Where the figures work only at today's rates and on a build with no delays, the assessment rate will usually stop the application before the builder does.
What Lenders Check Before They Approve You
Approval turns on a small number of tests, and most declines trace back to one of them:
Fixed Price Building Contract
A signed contract with a licensed builder, showing the full price, the specification and the payment schedule. Cost-plus arrangements and contracts left open on price are declined by most lenders, since the final figure is unknown.
Council-Approved Plans
Stamped plans and specifications, which the valuer works from. Changes made after approval can trigger a fresh valuation and delay the next release.
Deposit and Land Equity
Many lenders look for around 20% of the combined land and build cost, and some consider less where mortgage insurance is added at your expense. Equity in land you already own can stand in place of cash, subject to the valuation.
Serviceability Buffer
The Australian Prudential Regulation Authority (APRA) requires banks to assess repayments at 3 percentage points above the actual rate, which is why capacity feels smaller than your income suggests. Lenders outside the banking system are not bound by the same rule, though many apply a buffer of their own.
Valuation on Completion
The property is valued as if the work is already finished, using the plans and the contract price. Lenders order it before formal approval, and it sets the ceiling on what they will advance.
Builder Licence and Insurance
A current licence and a compensation certificate in the builder's name on the contract. Some lenders also decline arrangements where the builder is a related party, so a family arrangement is worth raising early.
How Progress Payments Are Released
Money is released against work already finished, usually across five stages, with progress payments paid straight to the builder:
Base Stage
Site works are done and the slab is poured. Site costs vary widely between blocks, and a sloping or rock-affected site can push this stage past the contract allowance.
Frame Stage
The frame and roof trusses are up and inspected. Base and frame commonly account for 30% to 45% of the contract between them, so the drawn balance climbs quickly in the early months.
Lock-Up Stage
External walls, windows and doors are installed and the building can be secured. This is commonly the largest single release on a five-stage schedule.
Fixing Stage
Internal linings, cabinetry, doors and fittings go in. Delays are common at this stage where a fitting is out of stock, and the release waits until the work is signed off.
Completion Stage
The work is finished, inspected and handed over. The final release is usually made once the occupation certificate is issued.
Each release generally needs your written authority, a builder's invoice and, in many cases, an inspection, and lenders commonly charge a fee for each one. Interest applies only to the balance drawn so far, so repayments start small and climb with each stage. Most lenders expect the build to finish within about 12 months of the first release.
How the Process Runs From First Call Onwards
The steps stay the same on every file, though timing shifts with lender queues and how quickly documents come back:
Reading Your Contract
We go through the building contract, the specification and the payment schedule before you sign, and flag anything a lender would reject while it can still be changed. We also work out what the completed loan costs, not only what it costs during the build.
Comparing Your Lender Options
We match your position against lender policy across our panel and bring back the options that fit, with the rate, fees and drawdown conditions on each. Appetite varies widely on construction, particularly on owner-builder work, duplexes and larger renovations, so a lender that suits a project home may not fund yours.
Submitting Your Application
We prepare and lodge the application, order the valuation on the completed plans and manage the lender questions. Conditional approval comes first, with formal approval once the valuation and the builder documents are back.
Managing Each Drawdown
We handle the release request at each stage with you, chase the inspection where one is required and follow up on payment to the builder. Delays and valuation shortfalls get dealt with as they arise.
Converting Your Loan
At completion we review how the loan converts, what the repayment becomes on the full balance and whether the rate still competes. Where moving makes sense, we set out the switching cost against the saving before you decide.
Nothing goes to a lender until you have chosen one, and the contract review happens well before that point.
What This Costs You
Broker commission is paid by the lender that funds the loan, usually as an upfront amount at settlement and a smaller ongoing amount while the loan runs. Any fee payable by you is set out in writing in our credit guide and credit proposal before you commit to anything.
The first conversation carries no cost and does not oblige you to apply. Separate from what we are paid, a construction home loan carries lender charges the loan itself does not absorb, including a fee for each progress release and, in some cases, a valuation fee. Where a loan is advertised with a rate, we show the comparison rate alongside it, since the advertised figure alone leaves out fees that change what you pay.
Trade-Offs Worth Knowing Before You Commit
Staged funding keeps repayments low while the work runs and stops money leaving before it is earned. These are the costs sitting on the other side:
Two Housing Costs
Rent or an existing mortgage runs alongside the construction interest for the length of the build. Lenders assess you on the basis that you will carry both, so the overlap sets your capacity as much as the loan size does.
Repayment Step Up
Interest on a partly drawn loan is small next to the repayment that starts at completion. The figure worth testing is the one after conversion to principal and interest on the full balance, at a rate above the current one.
Valuation Shortfall Risk
An as-completed valuation under the contract price reduces what the lender will advance, and the difference is payable in cash. Contract prices that sit well above comparable homes nearby are the ones most likely to show a gap.
Delays and Cost Increases
Build times slip, and each extra month adds interest without adding value. Holding a contingency of your own covers that, since lenders rarely increase a facility mid-build.
Why NSW Borrowers Work With Us
DIY Lending operates as a Corporate Credit Representative of Finsure Finance & Insurance Pty Ltd, Australian Credit Licence 384704, and we are a member of the Mortgage and Finance Association of Australia. We are also a member of the Australian Financial Complaints Authority, which gives you an external body to escalate to if something goes wrong.
We are not owned by a lender, and our access runs to more than 40 of them, so the shortlist for your build starts with which ones will fund it. Policy on construction loans differs sharply between lenders, and knowing which ones fund your type of build saves an application that was never going to be approved.
Every decision about your own money stays with you, including the decision to wait. Clients come to DIY Lending from across Sydney, including owners building here while living somewhere else.
Know What Your Build Will Cost to Fund
The doubt that stops most people is not whether the house can be built. It is whether the funding holds together across a year of stage payments, and what the repayment looks like on the day the builder hands over the keys. Your income, your land equity and the contract in front of you settle both questions.
Call 02 8806 7258 or send your details through, and you will get a funding position for a build anywhere in NSW, with the structures that fit it.
Frequently Asked Questions (FAQs)
Do I need the deposit in cash?
Not all of it. Equity in land you already own can cover much of the deposit, subject to what the valuation supports, with the balance made up in cash. Lenders differ on how much they will accept as equity, so the split is worth confirming before you commit to a builder.
Can I get a construction loan as an owner-builder?
Sometimes, though the options are limited and the terms are tighter. Expect a larger cash contribution, and expect the lender to want the permit, the approved plans and evidence of who is carrying out the licensed trades before it releases anything.
What happens if the build costs more than the contract price?
Variations agreed after signing usually sit outside the original loan and are paid in cash. Where the increase is large, some lenders may consider varying the facility, which depends on your position at the time and can require a fresh valuation.
What happens if the build runs past the loan term?
Extensions may be available where the delay is documented, and some lenders will reset the completion date instead. Tell us early if the builder's timeline slips, since an expired construction period takes longer to fix than an extended one.
Do I keep paying rent or my current mortgage during the build?
Yes, and lenders assess you on the basis that both continue. Where that overlap is tight, the length of the build and the size of your deposit affect the outcome more than the rate does.
What happens if my builder goes out of business partway through?
The compensation scheme in NSW is designed for that situation where the work is valued over $20,000 and the certificate was issued, with limits on how much can be claimed. Your lender will also need a new builder and a revised contract before further funds are released, so the loan usually pauses while that is arranged.
Can a self-managed super fund borrow to build?
Generally no. The borrowing rules the Australian Taxation Office (ATO) applies to a self-managed super fund (SMSF) do not allow borrowed money to be used to improve an asset, which rules out most construction. Since 10 August 2026, a new borrowing arrangement over real property must also be for business real property, so a completed commercial premises is the remaining path.
This page contains general information only. It does not take your objectives, financial situation or needs into account, and it is not a recommendation to enter into any credit contract. Figures, thresholds, lender requirements and government schemes change, and the outcome for your situation depends on your circumstances and the lender assessing you. You may wish to speak with a qualified professional before acting on anything here.