Buying Off The Plan in Perth, WA, Your Plain-English Guide
Off-the-plan apartments and townhouses have become a genuine entry point for Perth buyers who can't quite stretch to an established home at today's medians. You sign a contract today, pay a deposit, and wait for the building to complete before settlement. That gap between signing and settling is where most of the questions live, and it's also where lender policy differs more than most buyers expect.
Perth's unit market tells the story clearly. REIWA data shows unit medians across the approved suburbs ranging from around $542,000 in Thornlie to $690,000 in West Perth and East Perth, with a large cluster sitting between $600,000 and $750,000. That keeps many options under the $850,000 First Home Guarantee cap, which is part of why off-the-plan buying has picked up pace in the Perth, WA market over the past two years.
Our team helps buyers across Perth, WA work through the finance side of these purchases, comparing across 60+ lenders. The apartment home loan side of it is where most of the difference is made, because not every lender treats off-the-plan the same way.
Key takeaways
- The bank values the property at completion, not at your contract price.
- WA's off-the-plan duty concession runs until 30 June 2028.
- First Home Guarantee caps at $850,000 for Perth, covering most new unit stock.
Is buying off the plan a good idea for Perth buyers right now?
Buying off the plan can work well for Perth buyers, particularly where the unit median already sits below the $850,000 First Home Guarantee cap and the project is from a builder with a demonstrated track record. The main appeal is time: you pay a deposit now and use the build period to keep saving, so settlement arrives with a stronger financial position than you started with. REIWA data shows Perth's unit market grew across most suburbs over the twelve months to August 2026, which means buyers who contracted early in a well-located project have generally seen the market move with them.
How does off-the-plan finance actually work?
The mechanics are different from buying an established home, and the gap matters. You sign a contract, pay a deposit (commonly 10% of the purchase price, held in trust by the developer's solicitor), and then wait for practical completion before the lender funds the balance. During that period your pre-approval lapses, the market moves, and lender policy can change. Those three things interact in ways that catch buyers off guard.
The most important rule: the lender values the property at completion, not at the contract price. If the market has softened in the intervening period, the valuation can come in below the contract price, and you're responsible for the shortfall in cash. This is not a theoretical risk. It's the single most important thing to understand before you sign anything.
Formal loan approval is confirmed close to completion, not at the time of signing. Because a pre-approval has a limited shelf life, your broker will time the full application to sit within that window. Interest rate changes and updates to lender credit policy over a long build period can also affect how much you're ultimately approved for, even if your income and expenses haven't changed.
We regularly see buyers who've done their research on the project and the location but haven't thought about what happens if the valuation comes in short. That's usually the conversation we wish we'd had with them before they signed, not after.
Joe Del Borrello · Director, Launch Finance · Chat to the Launch team →
What do you need to qualify to buy off the plan in Perth?
Lender eligibility for an off-the-plan purchase follows standard residential lending rules, with a few additional checks around the project itself. Your income, deposit, credit file and existing debts are assessed the same way as any home loan.
What lenders look at beyond your own position:
- › Your deposit: commonly 10% of the purchase price at contract, held in trust. The lender funds the remaining balance at completion.
- › Property type and size: most mainstream lenders want a minimum internal living area around 50 sqm. Below that, the panel narrows significantly.
- › Postcode concentration: some lenders cap LVR or restrict lending in postcodes with high apartment supply. Inner Perth postcodes are worth checking before you commit.
- › Title type: strata title is the broadest lender panel. Company title or leasehold structures narrow it considerably.
- › Sunset clause: check the contract for the date by which the developer must complete. If they don't, either party may be able to exit. Understanding your protections here matters as much as the finance.
What does it cost to buy off the plan in Perth, WA?
The upfront cost profile of an off-the-plan purchase differs from established property in two important ways: transfer duty is often lower, and the timing of costs is split between contract date and settlement.
The main cost lines to budget for:
- › Deposit at signing: typically 10% of the purchase price, held in trust until completion. This is not accessible to you during the build period.
- › Transfer duty: WA's off-the-plan duty concession reduces the duty payable on eligible purchases and runs until 30 June 2028. The exact concession depends on the property value; use the RevenueWA calculator for your figure. First home buyers may also qualify for the first home owner rate of duty: nil for homes to $600,000, and a concessional rate from $600,001 to $800,000.
- › Settlement costs: mortgage registration, settlement agent fees and loan establishment costs fall at completion, not at signing. Budget for these separately from your deposit.
- › Valuation shortfall risk: if the lender's valuation at completion is lower than the contract price, the difference comes from your own funds. There is no published figure for how often this occurs; it depends on the project and the market.
Source: RevenueWA and wa.gov.au 2026-27 Housing Taxation Package.
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What government schemes can off-the-plan buyers use in Perth?
Several schemes are genuinely useful for off-the-plan buyers in Perth, WA, and eligibility runs on property price and your own circumstances rather than on the purchase type itself.
The schemes worth knowing:
- › First Home Guarantee: 5% deposit, no LMI, no income test. Perth cap is $850,000. A new apartment under that threshold qualifies, which covers the majority of Perth's new unit stock.
- › Family Home Guarantee: single parents, 2% deposit, no LMI. You don't need to be a first home buyer. Same $850,000 Perth cap applies.
- › WA First Home Owner Grant:$10,000 for new homes only, $800,000 cap in Perth. Off-the-plan purchases qualify; the grant timing follows RevenueWA's own rules for new builds.
- › Keystart Urban Connect Shared Equity: targets new apartments, townhouses, villas and units to $800,000. Government co-owns up to 35% of the property; you need a 2% deposit. Income caps apply ($128,000 singles, $197,000 couples and families). Launched as a 1,000-loan allocation; confirm places remain before relying on this pathway.
- › Help to Buy: federal shared equity, income-tested ($103,000 single, $165,000 joint from 1 July 2026), Perth cap $850,000. Note that Help to Buy cannot be combined with a state shared-equity scheme such as Urban Connect.
- › WA off-the-plan duty concession: reduces transfer duty on eligible off-the-plan purchases. Runs until 30 June 2028. This sits separately from the first home owner rate of duty and the two can interact favourably for eligible first home buyers.
Source: Housing Australia; RevenueWA; Keystart; wa.gov.au 2026-27 Housing Taxation Package.
When does buying off the plan not make sense?
Off-the-plan buying works best when the project is close to completion, the developer is well-credentialed, and you have a cash buffer above your 10% deposit to absorb a valuation shortfall if one occurs. Where those three conditions aren't all present, the risk profile changes materially.
A long build period in a rising-rate environment can tighten your serviceability by the time formal approval is due, even if nothing in your financial life has changed. The rate the lender assesses you on at completion may be higher than the rate you assumed when you signed, because the APRA serviceability buffer of 3.0% is applied to the rate at the time of application, not the rate at signing.
If you're buying off the plan specifically to avoid saving a larger deposit, and the valuation comes in 5-8% below the contract price, you may arrive at settlement needing funds you don't have. That is the scenario that creates the most pressure, and it's the one most buyers don't plan for.
Where someone is genuinely comfortable with the valuation risk and has a buffer set aside for it, off-the-plan in Perth's current unit market can be a smart entry point. Where the 10% deposit is everything they have, I'd usually want them to understand the shortfall scenario clearly before they sign.
Joe Del Borrello · Director, Launch Finance · Chat to the Launch team →
How to buy off the plan in Perth, WA, step by step
The process differs from a standard purchase because finance is confirmed close to completion, not at the time of signing. Getting the sequence right keeps you from arriving at settlement with an expired pre-approval or a surprise funding gap.
Step 1: Talk to us
We start by assessing your borrowing position, confirming which schemes you're eligible for, and identifying the lenders whose policies suit off-the-plan purchases in your price range.
Step 2: Review the contract and the project before you sign
We'll work through the sunset clause, the deposit structure and the developer's track record alongside you, so you understand exactly what you're committing to before funds leave your account.
Step 3: Time your formal application to the build
We monitor the construction timeline and submit your full application within the lender's pre-approval window, accounting for the valuation at completion and any rate or policy changes since you signed.
Step 4: Manage the valuation and settle
If the valuation comes in below the contract price, we work through your options immediately so you're not making that decision under pressure at settlement.
What goes wrong when people buy off the plan in Perth?
Where buyers lose ground:
- › Valuation shortfall with no buffer: buyers who put 10% down and nothing more arrive at settlement unable to cover a shortfall without selling assets or borrowing elsewhere. The fix is planning for it before you sign, not after the valuation lands.
- › Applying to the wrong lender early: some lenders have postcode restrictions or minimum size requirements that rule them out entirely. An application lodged with an unsuitable lender sits on your credit file as an enquiry and doesn't help the eventual approval.
- › Assuming the pre-approval holds: a pre-approval valid at signing may be expired by completion. Serviceability is reassessed on the rate and policy in place at the time of the formal application, which may differ from the environment at contract date.
- › Missing the sunset clause: if the developer doesn't complete by the sunset date, either party may be able to exit the contract. Understanding what your contract says here, before signing, is essential.
Frequently Asked Questions
Can first home buyers use the First Home Guarantee to buy off the plan in Perth?
Yes, new apartments and townhouses qualify for the First Home Guarantee, provided the purchase price is under $850,000 in Perth. The 5% deposit requirement and the no-LMI benefit both apply at settlement, not at the time of signing.
What happens if the lender's valuation comes in below my contract price?
You're responsible for the difference in cash. The lender funds based on the lower valuation, so you either cover the gap, renegotiate with the developer, or exit if the contract allows it. Having a buffer set aside for this scenario is the standard advice.
How long does an off-the-plan build take in Perth?
Apartment builds typically run 12 to 24 months from contract to practical completion, though timelines vary by project. Your broker will time the formal loan application to sit within the lender's pre-approval window ahead of that date.
Is the WA off-the-plan duty concession available to all buyers, or just first home buyers?
The WA off-the-plan duty concession is available to all buyers, not just first home buyers. First home buyers may also qualify separately for the first home owner rate of duty, so both can apply depending on your circumstances.
Can I use the WA First Home Owner Grant on an off-the-plan purchase?
Yes, the $10,000 grant applies to new homes including off-the-plan contracts, provided the purchase price is $800,000 or under in Perth. The grant timing follows RevenueWA's rules for new builds; confirm the trigger point with your settlement agent.
Should I use a mortgage broker or go directly to my lender for an off-the-plan purchase?
A mortgage broker, every time. Lender policy on postcode restrictions, minimum property sizes and off-the-plan valuation varies significantly across the panel, and applying to a lender whose policy doesn't suit your project leaves an enquiry on your credit file with nothing to show for it.
Your Next Steps
Buying off the plan in Perth, WA rewards buyers who understand the valuation risk, have a buffer in place, and get the lender match right before they sign. The finance side of these purchases is more timing-sensitive than a standard home loan, and the difference between lenders on postcode policy and minimum property size can determine whether you're approved at all.
If buying off the plan is on your horizon, the next step is simple. Get in touch with the Launch Finance team or call 08 9367 4222. We'll work through where you stand across our 60+ lender panel.
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External Resources
Launch Finance · Perth, WA · Launch Finance Pty Ltd (ABN 17 163 528 701), Corporate Credit Representative 454041 of BLSSA Pty Ltd (ABN 69 117 651 760), Australian Credit Licence 391237 · General information only - this article does not constitute financial advice. Please consider your own circumstances and seek professional advice before making any financial decisions.
