Five Rules That Stopped Us Buying Duds (After 200+ Deals)

I bought my first investment property in 2017. Got it wrong. Spectacularly wrong, actually — an apartment in a high-rise near a university. Negative cash flow from day one, zero capital growth over three years, and when I tried to sell it the agent couldn't even get a decent crowd through the door on a Saturday.

That experience cost me about $60,000 in real money and probably twice that in missed opportunity. But it also forced me to build a system. A set of rules I could check mechanically, without emotion, before putting an offer on anything.

Five rules. That's it.

Over the past four years and more than two hundred transactions across Melbourne, these five rules have kept our team and our clients out of trouble. They're not glamorous. Some of them sound obvious when you read them. But I promise you — almost nobody follows all five consistently. And that's where the money is.

Rule 1: If the land isn't worth 80% of the price, walk away

This is the one that separates property investors from property speculators. Buildings depreciate at roughly 2.5% per year 1. Land in the right areas appreciates at 7-10% 2. So the maths is dead simple: the more of your money sitting in land, the faster your net worth grows.

We won't touch anything where the land component is below 80% of the purchase price. Full stop.

"The entire philosophy comes down to three words: buy land, get house free," says Joey Don, Co-Founder & CEO at PremiumRea. "An $800,000 property needs at least $640,000 of that to be land value. If the land's only worth $500,000 and you're paying $300,000 for the building — you've just bought a depreciating asset with a nice kitchen."

What does this rule kill? Apartments. Townhouses in new estates. Display homes in Clyde North with $400,000 land-and-build packages where the builder's margin eats the value. That shiny new four-bedder in Tarneit with stone benchtops and downlights? The building cost $280,000 and the land's worth $320,000 at best. That's a 53% land ratio. You'll be treading water for a decade.

What passes? Older houses on big blocks in established suburbs. The ugly duckling on 620 square metres in Hampton Park, the three-bedder with peeling paint on a 700-square-metre corner lot in Boronia. The buildings are worth sweet nothing — which is exactly the point. You're buying the dirt underneath.

I run this check in under two minutes using council rate notices and recent comparable land sales. If it doesn't pass, I don't care how nice the bathroom is.

Rule 2: How do you actually make money from a property — not just hope it goes up?

Here's a number most investors never calculate before they buy: the cash-on-cash return.

Take one of our clients — a 35-year-old IT manager, household income around $200,000 per year. Maximum borrowing capacity: roughly $1.2 million 3. But we didn't let him use it all. We targeted $750,000 and kept a buffer.

The property: a dated three-bedroom house in Melbourne's outer southeast on 600-plus square metres. Land value above 80% — tick. Previous owner had it rented at $420 a week, which is a rental yield of about 2.9%. Terrible.

After settlement we spent $13,000 on cosmetic renovations — new paint throughout, SPC flooring, updated light fittings, a proper kitchen splashback — and restructured the tenancy. New rent: $580 a week. That's a gross yield of 4%. Better. But the real play was the back yard: 620 square metres with a 3.2-metre side access. Perfect candidate for a secondary dwelling.

Once we added a detached studio at the back, total weekly rent hit $950. That's a gross yield of 6.6% on a $750,000 purchase, and the property now services itself completely — principal and interest, rates, insurance, management fees, the lot — with about $4,000 a year left over 4.

"Cash flow is the only honest metric in property investment," says Joey Don. "Capital growth is a guess. Rental yield is a fact. When your rent covers every single cost and still puts money in your pocket, you've bought an asset. Everything else is speculation with extra steps."

The key insight: we didn't wait for the market to make us money. We manufactured the return.

Rule 3: The six-and-one rhythm

Most buyers fall into one of two traps. They spend six months browsing Domain every night, get overwhelmed, and never buy. Or they panic-buy the first decent place they see because they're terrified of missing out.

Both are expensive mistakes.

We teach our clients a weekly rhythm we call "six and one." Six days of scanning, one day of deep analysis.

Monday through Saturday: spend fifteen to twenty minutes a day skimming new listings. Not to find 'the one' — you won't. The purpose is elimination. You're looking for reasons to say no. Wrong land size. Bad overlay. Flood zone. Heritage listing. Easement through the middle of the block. High-voltage lines within a hundred metres. Slope greater than two metres. These are hard vetoes — non-negotiable 5.

On Sunday, you take whatever survived the week — usually one or two properties — and go deep. Pull the Section 32. Check the title for caveats. Look at aerial photos from ten years ago to see what's changed. Drive past at 7pm on a weekday to see what the street actually feels like when people are home. Run the cash flow numbers.

Why this works: market data shows the decision window on good investment stock is about seven days in Melbourne's southeast 6. Hesitate longer than that, and you're likely paying 3-5% more to a faster buyer. The six-and-one rhythm means you're always warmed up. When the right property appears in your scan, you're ready to go deep immediately — not starting from scratch.

Rule 4: What kills more deals than bad properties? Bad thinking.

Rule four is the hardest one because it's about your own head, not the market.

I call it decision hygiene. And yeah, it sounds a bit wanky. But after watching dozens of smart, high-income professionals make catastrophic property decisions because they listened to the wrong people at the wrong time — I'm a convert.

Here's what I tell clients to do in the ten weeks before making an offer:

• Stop reading property market forecasts. All of them. The ones predicting a crash and the ones predicting a boom. They're entertainment, not information. CoreLogic publishes actual transaction data — use that. Everything else is someone's opinion dressed up as analysis.

• Stop taking advice from selling agents. Their job is to get the highest price for the vendor. They are not on your side. They will never be on your side. This is not a moral judgment — it's their legal obligation.

• Stop discussing property strategy with friends who don't own investment property. Your mate who rents in Fitzroy and reckons the market's about to collapse has no skin in the game. His opinion costs you nothing to hear and potentially a fortune to follow.

Then, before you sign anything, run three questions:

1. Is the land ratio above 80%?
2. Can I add value through physical improvement — a renovation, a secondary dwelling, a subdivision?
3. Will the rent cover all holding costs within twelve months of settlement?

If all three answers are yes, make the offer. If any one is no, walk. Repeat until you find a property that passes all three. It usually takes four to six weeks of the six-and-one rhythm to find one that qualifies.

The three-question filter is not a shortcut. But it is a circuit breaker. It stops you from buying a property because the kitchen is nice, or because the agent said there are "lots of offers," or because your parents reckon it's a good suburb.

Rule 5: Treat your portfolio like a diet, not a buffet

The last rule is about what you don't buy.

Stay away from processed property. If a development company is spending $50,000 on Facebook ads to sell you a house-and-land package with free landscaping, a $10,000 cash-back bonus, and a guaranteed rental return — the margin is baked into your purchase price. You are the product, not the customer.

Same goes for display villages. Same goes for off-the-plan apartments. Same goes for anything where the sales pitch is louder than the numbers.

I ran a $300 million investment book in a previous career. The single biggest lesson from institutional finance that applies to property is this: the best investments are boring. They don't have glossy brochures. Nobody's running a webinar about them. They're a three-bedroom weatherboard on 650 square metres with a long-term tenant paying $480 a week, and the vendor just wants a clean settlement before Christmas.

The second thing to avoid is FOMO. Fear of missing out is the most expensive emotion in Australian property. It makes people bid $40,000 over reserve at auction because "everyone else was bidding." It makes people skip the building inspection because they're scared of losing the property.

One of our hard rules: we never waive the building and pest inspection. Never. Even on unconditional offers, we conduct the inspection before making the offer, not after 7. In 2021 alone, our inspections caught three properties with active termite damage, two with illegal structural modifications, and one sitting on a disused mine shaft that wasn't disclosed in the Section 32. Each one of those would have cost the buyer $30,000 to $80,000 to rectify.

If you're just starting out, begin with two changes: cut processed property from your search entirely, and commit to the building inspection on every single deal. That alone puts you ahead of half the market.

Where to from here

These five rules won't make you a property millionaire overnight. They're slower than that. What they will do is stop you from making the kind of mistake that takes five years and $100,000 to recover from.

Land ratio above 80%. Manufactured cash flow. Six-and-one rhythm. Decision hygiene. No junk, no FOMO.

I wish someone had given me this list before I bought that apartment in 2017. Would've saved me three years and a lot of money.

But then again — I probably wouldn't have listened.