Construction loans Perth
Quantum Finance arranges construction loans across Perth that pay your builder in stages as the house goes up, with interest charged only on what has been drawn, and we check the project against real lender policy before you sign the building contract.
- New builds, knock-down-rebuilds and owner-builder projects.
- Drawn down in stages, with interest only on what has been drawn.
- Lenders assess the land and the finished value together.
- Heavier paperwork than a home loan, and the timing matters more.

- Years broking
- 21+Years broking
- Loans settled
- $1B+Loans settled
- Credit licence
- ACL 389083Credit licence
- Lenders compared
- 40+Lenders compared
Our awards and recognition
Awarded by the people who see every broker’s numbers
Diamond Club
2026
Money Quest Group

Diamond Club
2025
Money Quest Group

Diamond Club
2024
Money Quest Group

Mortgage Broker of the Year
2023/24 — National, highest dollar volume settled
Southern Cross Broker Network

Excellence in Finance, Gold
2021
PLAN Australia

Excellence in Finance, Gold
2020
PLAN Australia

Hall of Fame
Valued partner, 15 years
PLAN Australia

Elite Broker
2021
Broker Value Proposition

Premium Broker
ANZ

Individual Excellence Award
2016
Specialist Finance Group

Sales Excellence Award
PLAN Australia

Sales Master Award
PLAN Australia
Top 100 Brokers
Four times
Australian Broker
Current rate
5.99% p.a.6.02% comparison rate
Variable, owner occupier. Principal and interest, from our lender panel.
Indicative only, as at August 2026. The rate you are offered depends on your circumstances and is subject to lender approval.
What our construction finance service does
The work we do on a construction loan, from contract to conversionA construction loan pays your builder in stages as the house goes up, rather than handing over the full amount at settlement. The paperwork is heavier than a standard home loan and the timing matters more, because a stalled build costs money every day.
Lenders assess the land and the finished value together, using your fixed price building contract and approved plans.
Every facility is subject to lender approval and your circumstances, and we tell you where a project sits before anything is submitted.
We check the project before you sign the building contract
Sign a fixed price contract, then find out you cannot fund it, and you may be exposed to the builder for the deposit. We confirm the numbers against real lender policy first, and tell you how long to make the finance clause in the contract.
We assemble the paperwork a construction lender demands
Construction files need more documentation than a purchase and lenders are strict about it: the signed fixed price contract, council or shire approval and the building permit, final plans matching the contract exactly, the builder's registration and indemnity insurance, and the progress payment schedule.
We size the loan against the land and the finished value together
The lender values the property as if complete, from the plans and the contract. Anything you plan to do outside that contract is generally not counted, and landscaping, driveways, fencing, retaining and window treatments are the usual omissions. We flag those before they arrive at the end.
We manage each drawdown as the build goes up
Before each release the lender usually sends a valuer to confirm the stage is complete. You sign an authority, the lender pays the builder, and the drawn balance increases. We keep that cycle moving, because a stalled drawdown stalls the site.
We plan for the repayment climb and the completion deadline
You pay interest only on what has been drawn, so the repayment rises with every stage and the last months cost considerably more than the first. Construction loans also carry a time limit for finishing the build, and an extension has to be requested rather than assumed.
We convert and review the loan once the build is finished
At practical completion the facility converts to a normal principal and interest home loan. That is the point to review the rate and the structure, and we diarise it rather than leaving you on the product you started with.
Work out what the build costs to fund
Duty on the land, then repayments on the finished loanA build has two numbers worth knowing early: the transfer duty on the land, which is payable at settlement of the land rather than at the end of the build, and what the loan repays at once the final drawdown is made.
Work out your WA stamp duty
The dutiable value. Usually the contract price, or the market value if that is higher.
Foreign buyers pay an extra 7% of the dutiable value on residential property in WA.
Rates as at 10 August 2026, source: RevenueWA.
Estimated duty payable
$24,890
- Scale applied
- General rate
- Transfer duty
- $24,890
- Duty at the general rate
- $24,890
This is an estimate of transfer duty only, on the 10 August 2026 RevenueWA scale. It does not include Landgate transfer or mortgage registration fees, settlement agent fees, or the off-the-plan concession. RevenueWA assesses the final figure.
Talk through your purchase costsWork out your repayments
What you need to borrow, not the purchase price.
An example figure. Put your own rate in — we do not quote rates here.
Estimated monthly repayment
$3,597.30
- Total interest over the term
- $695,029
- Total repaid
- $1,295,029
- Repayment if the rate rose to 8.00%Roughly the buffer a lender applies when it assesses you.
- $4,402.59
This is an estimate. It assumes the rate stays where you put it for the whole term and it does not include fees, lenders mortgage insurance, offset balances or extra repayments. Your real repayment depends on the lender and on approval.
Book a 15-min chatEach tool has a page of its own explaining every figure it uses: stamp duty calculator wa and home loan repayment calculator.
How house and land is funded
Four build structures, and how the finance works on eachHouse and land packages come in two shapes, and the difference changes both your finance and what you pay in transfer duty. Two contracts is the more common structure in Perth's growth corridors, where you settle the land first and start paying that loan while the build proceeds.
- Two contracts, land and build
How it is funded
Land settles first, then a construction facility funds the build
Worth knowing
Duty is generally assessed on the land value, not the finished house
- One contract, turnkey
How it is funded
Funded like a standard purchase, settling on completion
Worth knowing
Simpler, though duty is usually assessed on the whole package
- Land you already own
How it is funded
Equity in the land can contribute towards the deposit
Worth knowing
A current valuation is needed, and land values move
- Off the plan
How it is funded
Settles on completion, with valuation risk at that point
Worth knowing
A long settlement means your circumstances get reassessed
Knowing how a build is funded does not hurt. Do not stress about the mechanics — we set the facility up around your builder's contract and walk you through each drawdown as it comes.
Who construction finance suits
The builds we arrange finance forEvery project below is funded progressively against a valuation of the finished home. These are the situations that arrive most often.
Buyers building a new home on land they have bought or already own
Owners knocking down and rebuilding on an established Perth block
Investors building a rental or a duplex on a subdivided lot
Owner-builders holding an owner-builder approval
Anyone on a house and land package who wants the finance checked properly
How our construction loan process works
Five steps, then a drawdown at every stage of the buildThe application runs the same five steps as any loan we write. What follows approval is the part unique to a build: a progress claim, a valuer, an authority and a payment, repeated at each stage.
Start an application
You send us the basics and we work out what you could borrow and which lenders will look favourably at your situation.
Read this step in full: Start an applicationWhat you need
Income, debts, deposit
Get pre-approved
We put your file to the lender that fits and bring back a pre-approval in writing, subject to lender approval and your circumstances.
Read this step in full: Get pre-approvedWhat we do
Match the lender to your file
Get officially approved
Once your offer is accepted, the lender orders its valuation and issues formal approval.
Read this step in full: Get officially approvedWhat we do
Chase the lender, so you do not have to
Prepare for settlement
We go through the loan documents with you before you sign anything, then coordinate the lender and your settlement agent.
Read this step in full: Prepare for settlementWhat you need
Your questions, asked early
Stay up to date
After settlement we keep the loan under review as rates move and your circumstances change.
Read this step in full: Stay up to dateWhat we do
Review it, and tell you first
Step 1 of 5 · Start an application
About our independent mortgage brokers
The brokers who fund your buildIndependent means no franchise above us and no lender owning a share of the business. Nobody upstairs sets a monthly target, so a build goes to the lender whose construction policy actually fits it. Your bank offers one construction product; we compare 40+ lenders.
Gavin Harrigan has been broking from West Leederville since 2005. Today it runs on a small team, Gavin Harrigan, Justin Richardson and Xavier Prescott, each with their qualifications on the page. You deal with the person who writes your loan, before settlement and after it.
The work runs from a first home loan, through refinancing and investment lending, out to construction, small developments and commercial property. Same broker, whichever end of that you are at.
- VerifiedBroking since 2005
- VerifiedOver $1 billion in loans settled
- VerifiedAustralian Credit Licence 389083
- VerifiedMoneyQuest accredited
- VerifiedMember of the Finance Brokers Association of Australia (FBAA)
- Verified40+ lenders on the panel
Fifteen minutes is usually enough to tell you where you stand. No cost, no obligation, and any lending is subject to approval and your circumstances.


Why choose us for construction finance
A build has one shot at the right lender, and it is before you signEvery point below is a consequence of how this business is owned, not a slogan about service.
- Included
No franchise, no head office quota
We do not pay a franchise fee, so nobody upstairs sets a monthly target for us to hit. That removes the main reason a broker recommends the wrong loan.
- Included
No lender owns a share of us
The banks have no stake in this business and no claim on where files go. Your bank has one loan to sell you. We do not.
- Included
40+ lenders, one shortlist
We compare 40+ bank and non-bank lenders, then explain why the shortlist looks the way it does. Policy differences decide more applications than rate does.
- Included
We will tell you when the answer is no
If refinancing does not actually save you money, we say so and you leave the loan where it is. A wrong loan costs more than the fee it earns.
- Included
The same broker after settlement
You keep dealing with the person who wrote the loan. We review it as rates and your circumstances change, not once and then never again.
What our clients say
In their words, not oursReviews left by people we have settled loans for, pulled straight from the platform they were written on.
Our construction lender panel
Construction policy differs by lender, so we compare 40+Major banks, second-tier banks, and non-bank lenders who will look at a build the majors will not. MoneyQuest gives us access to the panel. 21+ years of writing loans on it tells us which lender to use.
A selection of the lenders we are accredited with. Ask us who else is on the panel for your situation.
Our construction finance guides
Understand the build before you fund itHow a construction loan is assessed and drawn down, in plain English. Each one carries a broker's name.

Approvals
Home loan pre-approval, explained
What a lender is actually committing to, and what can still undo it.
Read it: Home loan pre-approval, explained
Choosing a broker
What a mortgage broker does
What the job actually involves, who pays for it, and when your own bank is the better call.
Read it: What a mortgage broker does
Building
How construction loans work
Progress payments, a valuation of something not yet built, and the traps in between.
Read it: How construction loans work
Development
Funding a property development
How funders read a project, and why the exit is decided before the first drawdown.
Read it: Funding a property development
Meet our Perth construction finance brokers
You get a broker, not a call centreThree people, all named, all reachable. The person who arranges your construction loan is the person who chases each drawdown and the person who reviews the loan after it converts.

Gavin Harrigan
Managing Director
Broking since 2005, four-time Top 100 broker and a PLAN Australia Hall of Fame member.
- Bachelor of Commerce, Applied Finance and Commercial Law — Curtin University
- Diploma of Finance and Mortgage Broking Management — AAMC Training Group
- PLAN Australia Hall of Fame member
- Elite Broker status
- Top 100 Brokers, four times

Justin Richardson
Loan Consultant
Business and law background, and a habit of making the process feel simple.
- Bachelor of Commerce, Business Law and Marketing — Curtin University
- Bachelor of Laws (in progress) — Murdoch University

Xavier Prescott
Loan Consultant
Fresh qualifications, a competitor's discipline, and a lot of patience.
- Diploma of Finance and Mortgage Broking Management
Kinds of build we finance
Six builds, each funded a little differentlyEvery build here draws down in stages against a fixed-price contract. What changes between them is what the lender values, what it wants to see first, and how much of the finished value it will lend against.

Home Construction Loans
Building a new home in Perth, funded stage by stage as the house goes up.
Learn moreabout Home Construction Loans
House and Land Package Loans
House and land packages, where the land settles first and the build is drawn down after.
Learn moreabout House and Land Package Loans
Investment Construction Loans
Building a rental, a duplex or a second dwelling, funded progressively and assessed as an investment.
Learn moreabout Investment Construction Loans
Knockdown Rebuild Loans
Demolishing the house you own and building a new one on the same block, funded in stages.
Learn moreabout Knockdown Rebuild Loans
Renovation Loans
Funding a renovation, from a cosmetic update to structural work that needs progress payments.
Learn moreabout Renovation Loans
Owner Builder Construction Loans
Owner-builder projects, where fewer lenders will help and the honest answer is sometimes no.
Learn moreabout Owner Builder Construction Loans
Common questions about construction loans in Perth
How does a construction loan differ from a normal home loan?
The funds are released in stages as the build progresses rather than in one amount at settlement. You pay interest only on what has been drawn, so repayments climb with each stage. Once construction finishes, the loan converts to a standard principal and interest home loan.
Do I pay interest on the whole loan while building?
No, interest applies only to the balance drawn down so far, so early stages cost far less than later ones. Most lenders also allow interest-only repayments during construction. Budget around the repayment at full drawdown, because that is what you face in the final months.
Can I get a construction loan as an owner-builder?
It is possible, though considerably fewer lenders offer it and they typically lend a lower proportion of the finished value. You need an owner-builder approval, a detailed costing schedule and evidence you can fund any shortfall. We will tell you honestly whether your project is fundable.
What happens if my builder goes into administration?
The drawn portion of your loan remains payable and you are left to complete the build with another builder. Indemnity insurance may cover part of the loss, subject to the policy. This is why builder selection and a sensible contingency matter as much as the interest rate.
Does the loan cover landscaping and driveways?
Usually only if they are inside the fixed price building contract, because the lender values the property from that contract. Landscaping, fencing, driveways, retaining and window treatments are commonly excluded. They arrive at the end, so budget for them separately from the start.
Can I use equity in my land as the deposit?
Often yes, if you already own the block and it has been valued. Equity in the land can contribute towards or cover the deposit on the construction facility. How much a lender will recognise depends on a current valuation and on your serviceability, subject to approval.
How long can a construction loan run for?
Lenders set a period for the build to be completed, and it varies between them. If your builder runs over, an extension can usually be arranged, but it needs to be requested rather than assumed. We flag the deadline early so it does not become urgent.
Should I get finance before signing a building contract?
Speak to us before you sign. A fixed price contract commits you, and finding out afterwards that the numbers do not work can put your deposit at risk. We check the project against real lender policy first, and advise on the finance clause to include.
What are the drawdown stages on a construction loan?
Most residential contracts in Western Australia use five, though builders name them differently. The deposit is paid on signing, usually from your own funds. Base or slab is released once the footings and slab are down. Frame follows when the frame is up and inspected. Lock-up covers roof, external walls, windows and doors, and is typically the biggest single stage. Fit-out and practical completion covers internal fixtures, cabinetry and finishes, then the final payment.
What documents does a construction lender need?
A fixed price building contract signed by both parties, council or shire approval and the relevant building permit, final plans and specifications matching the contract exactly, your builder's registration and their indemnity insurance certificate, the progress payment schedule from the contract, and quotes for anything outside the contract that you intend to add.
What does it cost me while the house is being built?
Interest on the drawn balance, which rises with each stage, plus progress payment or drawdown fees and any valuation fee the lender charges at each stage. You also keep paying your rent or your existing mortgage for the duration, and any costs outside the building contract come out of your own funds.
How does a knock-down-rebuild work?
You are demolishing the lender's security before building the new one, so lenders value the land as vacant and then value the property as if complete. Demolition sits outside most building contracts, along with service disconnection and any asbestos removal. Budget for where you will live during the build, and for site works on a sloping block. Equity in the existing property often funds a good part of the project.
What does an owner-builder have to supply?
Your owner-builder approval from the Building Commission and any relevant trade background, a detailed costing schedule trade by trade, quotes from the subcontractors you intend to use, a realistic contingency because owner-builds run over more often, and evidence you can fund the gap between what you borrow and what it costs. Some owner-builders are better served by a land loan plus an equity release than by a construction facility.
Related finance we arrange
The other loans a build usually sits besideMost files touch more than one of these. If yours does, it is the same broker and the same conversation.

Home Loans
First home buyers through to seasoned investors. We compare 40+ lenders and run the file end to end.
Learn moreabout Home Loans
Development Finance
Small to mid residential and mixed-use projects, funded through bank and non-bank lenders.
Learn moreabout Development Finance
Refinancing
Rate reviews, debt consolidation and equity release. If switching does not stack up, we say so.
Learn moreabout Refinancing
The information on this page is general in nature and does not take into account your objectives, financial situation or needs. Any figures shown are estimates only. Lending is subject to approval, and to the lender's terms, conditions, fees and charges. Consider whether the information is appropriate for you before acting on it.
Get in touch
Talk to us before you sign a building contractFour questions and you are done. A broker reads it, checks the project against real lender policy, and rings you back on the number you give us.
Would rather just talk?
Ringing is quicker than waiting for us to ring you, and you get a broker rather than a queue.
1300 813 113



















