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Quantum Finance Australia

Construction loan Perth

Construction home loans in Perth, paid to your builder in stages

A construction home loan pays your builder in stages as your house goes up. Quantum Finance sizes that loan against your fixed price building contract and manages every drawdown through to completion.

  • For owner-occupiers building a new house on a Perth block.
  • Released in stages, with interest only on what has been drawn.
  • Priced off your fixed price building contract and approved plans.
  • We check the numbers against lender policy before you sign.
Xavier Prescott turned from his monitor to face the camera at his desk in the Quantum Finance office
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

What our construction home loan service does

The work we do on a new build, from contract to conversion

A construction home loan is a home loan for building a house rather than buying one, released in stages as the house goes up. The work sits in three places: checking the project before the contract is signed, assembling a file the lender will accept, and keeping each drawdown moving once the site is live.

Lenders value the land and the finished house together, off your signed fixed price contract and the 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 build against lender policy before you sign

    A fixed price contract commits you to the builder. Finding out afterwards that the numbers do not work is how deposits get put at risk. We confirm the project against real lender policy first, and tell you how long to make the finance clause.

  • We assemble the documents a construction lender asks for

    A construction file carries more than a purchase does: the signed fixed price contract, council or shire approval and the building permit, final plans matching the contract exactly, your builder's registration and indemnity insurance, and the progress payment schedule.

  • We size the loan on the finished house, not the empty block

    The lender values the property as if complete, reading the plans and the contract. Work you intend to do outside that contract is generally not counted. Landscaping, driveways, fencing, retaining and window treatments are the usual omissions, and we flag them at the start rather than at handover.

  • We run the drawdown cycle at every stage of the build

    Each stage runs the same way. Your builder issues a progress claim, the lender usually sends a valuer to confirm the stage is finished, you sign an authority, and the lender pays the builder. We keep that cycle moving, because a stalled drawdown stalls the site.

  • We show you the repayment climb before it arrives

    Interest applies only to the balance drawn, so the repayment rises with every stage and the last months of a build cost considerably more than the first. Budget against the repayment at full drawdown. That is the number you live with, and we work it out with you early.

  • We review the loan when it converts at completion

    At practical completion the facility becomes an ordinary principal and interest home loan. That is the moment to look at the rate and the structure rather than a year later. We diarise it instead of leaving you on the product you started the build with.

Work out what the build costs to fund

Duty on the land, then the repayment on the finished loan

Two numbers matter early on a new build. Transfer duty falls due when the land settles rather than when the house is finished, and the repayment worth budgeting for is the one at full drawdown.

Work out your WA stamp duty

The dutiable value. Usually the contract price, or the market value if that is higher.

Who is buying

First home buyer rates apply only if nobody on the contract has owned a home in Australia before, and you move in.

What you are buying

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 costs

Each tool has a page of its own explaining every figure it uses: stamp duty calculator wa and home loan repayment calculator.

How the money reaches your builder

Five progress stages, and what the lender pays for at each one

Most residential building contracts in Western Australia run five progress stages, though builders name them differently. The money moves one stage at a time, and the drawn balance grows with each release.

Deposit

What the stage covers

Paid to the builder when the contract is signed

Worth knowing

Usually comes from your own funds rather than from the loan

Base or slab

What the stage covers

Site works, footings and the slab down

Worth knowing

The first release from the loan on most residential contracts

Frame

What the stage covers

The frame standing and inspected

Worth knowing

A valuer generally confirms the stage before the money moves

Lock-up

What the stage covers

Roof, external walls, windows and doors on

Worth knowing

Typically the single biggest stage of the build

Fit-out and practical completion

What the stage covers

Internal fixtures, cabinetry and finishes

Worth knowing

The final payment, after which the loan converts to a home loan

You do not have to manage this cycle yourself. We hold the progress claims, the authorities and the valuations together, and tell you what is happening at each stage.

Who a construction home loan suits

The new builds we arrange finance for

Every project below is an owner-occupied house funded progressively against a valuation of the finished home. These are the situations that arrive most often.

  • Buyers who have settled a block and chosen a builder

  • Owners building on land they already hold outright

  • First home buyers going straight to a new build rather than an established house

  • Families upgrading by building instead of buying again

  • Anyone holding a fixed price contract who wants the finance checked before signing

How our construction loan process works

Five steps to approval, then a drawdown at every stage

The 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 until the house is finished.

  1. 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.

    What you need

    Income, debts, deposit

    Read this step in full: Start an application
  2. 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.

    What we do

    Match the lender to your file

    Read this step in full: Get pre-approved
  3. Get officially approved

    Once your offer is accepted, the lender orders its valuation and issues formal approval.

    What we do

    Chase the lender, so you do not have to

    Read this step in full: Get officially approved
  4. Prepare for settlement

    We go through the loan documents with you before you sign anything, then coordinate the lender and your settlement agent.

    What you need

    Your questions, asked early

    Read this step in full: Prepare for settlement
  5. Stay up to date

    After settlement we keep the loan under review as rates move and your circumstances change.

    What we do

    Review it, and tell you first

    Read this step in full: Stay up to date

Step 1 of 5

About our independent mortgage brokers

The brokers who fund your new home

Independent 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 fits it. Your bank sells one construction product; we compare 40+.

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.

The Quantum Finance broking team at their West Leederville office in Perth
Gavin Harrigan at his desk at the Quantum Finance office in West Leederville, industry awards on the wall behind him

Why choose us for a construction home loan

A build has one shot at the right lender, and it comes before you sign

Every 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.

Book a 15-min chat

What our clients say

In their words, not ours

Reviews 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.

  • ANZ
  • Commonwealth Bank
  • NAB
  • Westpac
  • St.George
  • Bankwest
  • Suncorp Bank
  • ING
  • Citi
  • Macquarie
  • AMP
  • ME Bank
  • P&N Bank
  • Firstmac
  • Homeloans
  • La Trobe Financial
  • Liberty
  • Pepper Money
  • Bluestone
  • PLAN Lending

A selection of the lenders we are accredited with. Ask us who else is on the panel for your situation.

Meet our Perth construction finance brokers

You get a broker, not a call centre

Three 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 of Quantum Finance Australia in Perth

    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
    Read profilefor Gavin Harrigan
  • Justin Richardson, Loan Consultant at Quantum Finance Australia

    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
    Read profilefor Justin Richardson
  • Xavier Prescott, Loan Consultant at Quantum Finance Australia

    Xavier Prescott

    Loan Consultant

    Fresh qualifications, a competitor's discipline, and a lot of patience.

    • Diploma of Finance and Mortgage Broking Management
    Read profilefor Xavier Prescott

Common questions about construction home loans in Perth

What is a construction home loan?

It is a home loan for building a house rather than buying one. The lender releases the money in stages as the build progresses, and interest is charged only on the balance drawn so far. Once the house is finished, the facility converts to a standard principal and interest home loan.

How does the drawdown cycle actually work?

Your builder finishes a stage and issues a progress claim. The lender usually sends a valuer to confirm the work is done, you sign an authority to release the funds, and the lender pays the builder directly. Your drawn balance and your repayment both rise, and the cycle repeats at the next stage.

Do I pay interest on the whole loan while the house is being built?

No, interest applies only to the amount drawn down so far, so the early stages cost far less than the 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.

Should I get finance sorted before signing a building contract?

Speak to a broker first. A fixed price contract commits you, and discovering afterwards that the numbers do not work can put your deposit at risk. We check the project against lender policy before you sign, and advise on the finance clause the contract should carry.

What does a construction loan not cover?

Generally anything outside the fixed price building contract, because the lender values the property from that contract. Landscaping, driveways, fencing, retaining and window treatments are the common exclusions. They arrive at the end of the build, so budget for them separately from the start.

Can I use the equity in my land as the deposit?

Often yes, if you already own the block and it can be valued. Equity in the land can contribute towards or cover the deposit on the construction facility. How much a lender recognises depends on a current valuation and on your serviceability, subject to lender approval.

What happens to the loan when the build is finished?

At practical completion the facility converts to an ordinary principal and interest home loan on the full drawn balance. That is the point to review the rate and the structure rather than a year later. We diarise the conversion so it gets looked at.

What documents will the lender want?

A fixed price building contract signed by both parties, council or shire approval and the building permit, final plans and specifications matching the contract exactly, your builder's registration and indemnity insurance certificate, the progress payment schedule, and quotes for anything you intend to add outside the contract.

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 contract

Four questions and you are done. A broker reads it, checks the build 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

Tell us what you need

Four details, about twenty seconds. We ask the rest on the call, where you can ask us things back.

An Australian mobile or landline. Overseas? Give us the number you use at home and we will work around the time difference.

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