Buying Off the Plan as an Investor in Australia: | Mortgagefy
Call Us: 0432 634 648 |
Investors 7 min read

Buying Off the Plan as an Investor: The Complete Risk & Reward Guide

Off-the-plan properties can deliver strong returns — but only if the numbers still work when you reach settlement.

Buying Off the Plan as an Investor: The Complete Risk & Reward Guide — Mortgagefy guide

Off-the-plan (OTP) property — buying before construction is complete — is a popular strategy among investors who want to lock in a price today for a property that won't settle for 1–3 years.

The appeal is obvious: if the market rises between contract and settlement, you've made money before you even take possession. But the risks are just as real.

How Off-the-Plan Buying Works

  • You pay a deposit (typically 10%) to secure the property at today's price
  • Construction takes 12–36 months
  • On settlement, you pay the balance and the property is yours
  • Your finance is arranged closer to settlement (not at contract)

The Main Advantages for Investors

1. Depreciation Benefits

New properties attract the maximum depreciation deductions. A brand-new investment property can generate $15,000–$25,000+ per year in depreciation claims in the early years — significantly boosting after-tax cash flow.

2. Lower Maintenance Costs

Everything is new — appliances, plumbing, electrical. Maintenance costs in the first 5–10 years are typically much lower than established properties.

3. Stamp Duty Savings (in some states)

In NSW, off-the-plan investors no longer receive a stamp duty concession — but in some other states, reduced stamp duty on the land value only can make a meaningful difference.

4. Fixed Price in a Rising Market

If prices rise during the construction period, you lock in the gain without additional borrowing.

The Main Risks for Investors

1. Valuation Risk at Settlement

Your lender will conduct a valuation at settlement — not at the time you signed the contract. If the property has fallen in value, your lender may not fund the full amount, leaving a "shortfall" you must cover from other funds.

Unlock the full guide

Considering an off-the-plan investment?

We can model the full financial picture including settlement finance, valuation risk, and rental projections.

No spam. No obligation. We respect your privacy.

Or

2. Developer Risk

Builders and developers can go bankrupt, delay indefinitely, or deliver a product significantly different from what was marketed. Due diligence on the developer's track record is essential.

3. Market Changes

Interest rates may have risen between contract and settlement, reducing your serviceability or the property's investment return.

4. Finance Availability

Lending policies can change in 2–3 years. A pre-approval today doesn't guarantee finance at settlement. This is a significant risk for off-the-plan investors.

Valuation Risk: The Most Important Risk to Understand

Let's say you bought off-the-plan for $850,000 with a 10% deposit ($85,000). At settlement, the lender values the property at $790,000. They'll lend up to 80% of $790,000 = $632,000.

You need $765,000 at settlement ($850,000 − $85,000 deposit). You have $632,000 from the lender. You're short by $133,000 — which you must fund from cash or risk losing your deposit.

This is why off-the-plan investors need to hold adequate cash reserves and not be fully leveraged at contract time.

Due Diligence Checklist

  • ✅ Research the developer — how many projects have they completed?
  • ✅ Check that the builder has a fixed-price contract with the developer
  • ✅ Get independent legal advice on the contract (rescission clauses, sunset clauses)
  • ✅ Model the worst-case scenario: what happens if the value falls 10%?
  • ✅ Have adequate cash reserves for settlement shortfall

Considering an off-the-plan purchase?

We can help you model the settlement finance, assess the risks, and line up the right lender in advance.

Settlement risk: the moment off-plan deals fall apart

The biggest off-plan risk in Australia is settlement risk. You signed a contract in 2024 to buy a $750K apartment off the plan, with settlement in 2026. By 2026 the market has softened, the bank's valuation comes in at $680K (a 9% drop), and the bank will only lend 80% of $680K = $544K. You expected to need $150K of deposit; you actually need $206K. If you don't have that extra $56K, you can't settle.

In 2017–2018 thousands of Sydney off-plan buyers hit exactly this scenario in apartment buildings around Parramatta, Olympic Park and Mascot. Some forfeited their 10% deposit. Others were sued by developers when the unit had to be resold at a loss. A few negotiated a price reduction with the developer. Almost none came out neutral.

How to protect yourself before signing an off-plan contract

Build your buffer. Plan for the property to value 10–15% lower at settlement than the contract price. If you can't fund that gap from savings or other equity, the deal is too tight to safely take.

Stress-test serviceability. If interest rates rise 2% between signing and settlement, can you still afford the loan repayments? Lenders will assess based on current rates plus a buffer at settlement, not at signing.

Get the developer's track record. Has this developer completed buildings on time before? Have valuations on their previous projects held up after settlement? Off-plan in a building from a developer with a 10-year track record of delivering quality stock is fundamentally different from off-plan in a first-time developer's project.

Check sunset clauses. Most off-plan contracts have a "sunset date" — if construction isn't complete by that date, either party can cancel. Developers have used these clauses to cancel contracts on buyers who paid below current market price, then re-sell at higher prices. NSW law has tightened on this since 2015 but it's still a risk.

Use an off-plan-experienced broker. The valuation and finance journey for off-plan is materially different from established property. Our investment team works on off-plan settlements regularly and can flag issues before you sign.

You've done the research. Now get your personalised investor advice.

Our mortgage assistant gives you a straight answer based on your actual situation — not generic estimates. Free, no obligation, under 3 minutes.

Ready to Assess an Off-the-Plan Deal?

We work with investors across Sydney's new property market. Get free, honest advice.

Want to model repayments yourself? Run the numbers in our Sydney home loan calculators before you apply.

Get your free Sydney investor assessment

Build your portfolio with a broker who understands serviceability for investors

Start Your Free Assessment Call 0432 634 648