Market Analysis18 December 202511 min read

My Uni Mate Bought a $700K Home at 25. It Cost Him $2 Million.

Joey Don

Joey Don

Co-Founder & CEO

My Uni Mate Bought a $700K Home at 25. It Cost Him $2 Million.

I have a university friend — let's call him Michael — who might be the smartest person I know. Melbourne Uni actuarial science. Graduated with a $120,000 salary. The kind of person who builds spreadsheets for fun and can calculate compound interest in his head.

Five years ago, he asked me whether he should buy a house. My answer was instant: yes — but buy an investment property, not a home to live in.

He didn't listen. He bought a $700,000 owner-occupied apartment near the city. And it became the single most expensive decision of his life.

Not because the apartment lost value. It's probably worth $730,000 today. The apartment was fine. The problem was everything it prevented him from doing — the career opportunity he couldn't take, the equity he couldn't access, and the compounding wealth machine he could have started five years earlier.

This is the story of how a $700,000 home purchase carried a $2 million opportunity cost. And it's a lesson that every Australian under 35 needs to hear before they make the same mistake.

The dream home that became golden handcuffs

Michael bought his apartment for all the right emotional reasons. He was tired of paying rent. He wanted stability. He wanted to "stop paying someone else's mortgage." These are the phrases every first-home buyer hears from parents, colleagues, and bank advertisements.

The apartment was nice. Two bedrooms, inner-city location, walking distance to his office. Mortgage repayment: about $3,200 per month on the $560,000 loan (80% LVR). Comfortable on his salary.

Then, eighteen months later, a startup in Sydney offered him a job. $200,000 base salary plus early-stage equity in the company. The catch: he'd need to relocate to Sydney immediately.

Michael ran the numbers. If he moved to Sydney, the Melbourne apartment would need to be rented out. The rent would cover about 70% of the mortgage. The remaining 30% — roughly $960 per month — would come out of his pocket on top of Sydney rent 1.

The financial gap was manageable. But the emotional fear wasn't. What if the startup failed? What if the apartment sat vacant? What if something broke and he was 900km away? The mortgage was a psychological anchor that kept him tethered to a city and a job that were no longer his optimal path.

He turned down the Sydney offer.

Two years later, that startup was acquired. Michael's equity package — the one he walked away from — was worth approximately $2 million at the acquisition price.

His Melbourne apartment? Still worth about $730,000.

Why owner-occupied is the wrong first move for young Australians

Michael's story is extreme. Most people won't miss a $2 million startup windfall. But the underlying principle applies universally: buying an owner-occupied home in your twenties or early thirties locks in your lifestyle at precisely the moment when your life should be maximally flexible.

Consider the variables that change between 25 and 35:

  • Your career trajectory (different job, different city, different industry)
  • Your relationship status (single → partner → possibly kids)
  • Your income level (could double or triple)
  • Your lifestyle preferences (inner-city apartment → suburban house with a yard)

An owner-occupied purchase forces you to predict all of these variables correctly at age 25. If you buy a one-bedroom apartment and have a child two years later, it's too small. If you buy a three-bedroom house and get a job offer interstate, it's an anchor. If you buy near your current workplace and change companies, the commute kills your quality of life.

The mortgage on an owner-occupied property is paid with after-tax income. It's not deductible. It's the most expensive form of debt you can carry. And it consumes borrowing capacity that could be deployed into income-generating assets 2.

"Rent is not dead money," says Yan Zhu. "Rent is the price of flexibility. And in your twenties, flexibility is the most valuable asset you own — worth far more than any property."

The rentvesting alternative: what Michael should have done

Here's the path I recommended to Michael — and the one we've now helped dozens of young investors execute.

Instead of buying a $700,000 owner-occupied apartment:

Step 1: Continue renting wherever suits your lifestyle. An inner-city apartment at $500/week gives you the same lifestyle without the $560,000 mortgage.

Step 2: Use your savings ($140,000 — his 20% deposit plus costs) to purchase a $700,000 investment property in a high-growth, high-yield corridor. Let's say Hampton Park: 600sqm block, three bedrooms, potential for granny flat.

Step 3: The rental income ($480-$520/week for the base house) covers the bulk of the mortgage. The interest is tax-deductible, reducing your tax bill by $8,000-$12,000 per year. Your net holding cost is negligible — maybe $50-$100/week after tax benefits 2.

Step 4: After 12-18 months, the property has appreciated $30,000-$50,000. Refinance, extract equity, and buy a second investment property. Or add a granny flat ($110,000 + GST) to boost rental income to $850+/week, making the property cash-flow positive 3.

Step 5: Continue renting for lifestyle, accumulating investment properties for wealth.

Five years later, Michael would have owned 2-3 investment properties worth $2+ million combined, generating positive cash flow, appreciating at 7% per year, and creating a wealth base that funds his eventual dream home — purchased from a position of financial strength rather than financial fragility.

Instead, he owns one apartment worth $730,000, has $560,000 of non-deductible debt, and the career flexibility of a snail.

We've helped clients execute this exact strategy. One client — a young IT professional similar to Michael — bought her first investment property at 27, added a granny flat, and within three years had a portfolio generating enough passive income to fund her rent while the properties appreciated. She hasn't made a single mortgage payment from her own pocket in 18 months. Her properties pay for themselves and for her apartment. That's the power of rentvesting done correctly 4.

"Every young person I meet says the same thing: 'I want to stop wasting money on rent,'" says Yan Zhu. "I tell them: you're not wasting money on rent. You're wasting money on a non-deductible mortgage for a property that restricts your career and locks in your lifestyle at the worst possible time."

When to buy your own home (and when not to)

I'm not saying never buy a home to live in. I'm saying don't do it first.

The optimal sequence for most Australians under 35:

  1. Rent for lifestyle flexibility
  2. Buy 1-2 investment properties for wealth building
  3. Build equity through capital growth and granny flat additions
  4. At 32-38, when your life is more settled (stable career, partner, children planned), use accumulated equity to buy your dream home
  5. Convert one or both investment properties to partially fund the home purchase, or retain them as your retirement portfolio

By following this sequence, you buy your home from a position of strength. You have equity. You have proven cash flow from investment properties. You have borrowing capacity supported by rental income. And you've spent 5-7 years learning how property investment actually works before committing to the biggest financial decision of your life 4.

Michael did it backwards. And the $2 million opportunity cost will compound for the rest of his life.

Don't be Michael.

References

  1. [1]Canstar, 'Mortgage Repayment Calculator', 2024. $560,000 loan at 6.3%, P&I, 30-year term.
  2. [2]Australian Taxation Office, 'Rental Properties — Expenses You Can Claim', 2024. Investment loan interest deductibility.
  3. [3]PremiumRea granny flat pricing. Standard 30sqm: $110,000 + GST. Expected rental addition: $370-390/week.
  4. [4]PremiumRea client case studies. Young rentvesting investors, 2022-2024.
  5. [5]Domain, 'Rentvesting Guide — Is It Right for You?', 2024.
  6. [6]Australian Bureau of Statistics, 'Housing Occupancy and Costs — Younger Australians', 2024.
  7. [7]ASIC MoneySmart, 'First Home Buyers Guide', 2024.
  8. [8]CoreLogic, 'Hampton Park VIC Suburb Profile', 2025. Growth and yield data.

About the author

Joey Don

Joey Don

Co-Founder & CEO

With 200+ property transactions across Melbourne and a background in IT and institutional finance, Joey focuses on data-driven property selection in the outer southeast and eastern suburbs.

rentvestingfirst home buyerowner occupiedinvestment propertyopportunity costyoung AustraliansMelbourne
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