Renovation & Development9 March 202610 min read

He Bought Two Narre Warren Houses in Four Months. Here's What Happened Next.

Joey Don

Joey Don

Co-Founder & CEO

He Bought Two Narre Warren Houses in Four Months. Here's What Happened Next.

I want to tell you about a client who taught me something about decisiveness. His name is Mr Huang — construction professional by trade, father of two, already held residential and commercial property in his personal portfolio. Not an investment novice by any measure.

Mr Huang came to us in mid-2025 with a clear brief: he wanted Narre Warren, he wanted land, and he did not want to mess around. What happened next was two transactions in four months that perfectly illustrate two different investment strategies — and why having a buyer's agent who understands both renovation and development is the difference between a decent deal and an outstanding one.

Property one: the auction that decided itself in three hours

The first property was a classic PremiumRea find — a house in Narre Warren with an existing granny flat. We flagged it to Mr Huang because properties with pre-built secondary dwellings are gold. You skip the 4-5 month construction timeline entirely and start collecting dual rental income from day one.

The auction was competitive. Narre Warren has been one of Melbourne's fastest-moving corridors through 2024 and 2025, with properties in the $700,000-$800,000 range attracting serious attention from both owner-occupiers and investors. Mr Huang made the decision to go hard within three hours of seeing the property.

He secured it at auction for $762,000.

Four months later, the bank valued it at $845,000 — an $83,000 paper gain without lifting a paintbrush. That is a 10.9% increase in four months, in a market that people on the internet insist is "flat" or "declining."

The rental structure was almost poetic. The main house rented for $605 per week. The granny flat? Rented back to the previous owner's elderly parents at $330 per week. They did not want to leave the neighbourhood they had lived in for decades. The new owner got a reliable, respectful tenant with deep ties to the property. Everyone won.

Total rental income: $935 per week. On a $762,000 purchase, that is a gross yield of 6.4%. With interest-only payments on 80% leverage, the property was cash-flow positive from month one.

"Properties with existing granny flats are scarce and tend to attract a premium. But the premium is often less than the cost of building one from scratch. Mr Huang effectively got a $110,000 asset for a $20,000-$30,000 price premium over comparable houses without secondary dwellings." — Joey Don, PremiumRea

Property two: the corner block with future written all over it

Three months after settling on property one, Mr Huang was back. This time he wanted something different — a corner block with development potential.

Corner blocks are the holy grail of suburban development in Melbourne. Because they have two street frontages, council requirements for vehicle access and setbacks are easier to satisfy. A standard mid-block lot of 600 square metres might struggle to achieve subdivision approval. A corner block of the same size can often be split into two independent titles with separate driveways.

We found him a corner block in Narre Warren at fair market value. Not a screaming bargain — good properties rarely are in this corridor anymore — but a fundamentally sound purchase that ticks every development box.

The land is large enough for a future two-lot subdivision. The existing house is structurally sound, sitting on the front portion of the site. The rear portion, with direct access from the side street, can accommodate a new dwelling.

Mr Huang, being a construction professional himself, immediately saw the potential. His plan: hold the existing house as a rental, apply for subdivision approval (current council processing times in Casey: 6-9 months), and then either build on the rear lot or sell the vacant land.

The numbers on a sell-the-vacant-land scenario look something like this:

  • Purchase price: ~$730,000
  • Subdivision costs (surveyor, town planner, council, services): $30,000-$50,000
  • Vacant land sale price (Narre Warren corner lot, 280-320sqm): $350,000-$400,000
  • Retained front house value: $550,000-$600,000

Combined value after subdivision: $900,000-$1,000,000. On a total outlay of $760,000-$780,000, that is $120,000-$220,000 in created equity. And the retained house continues generating rental income throughout the entire process.

What Mr Huang's story teaches us about velocity

Mr Huang drives a Toyota. Not a Porsche, not a Range Rover. A Toyota. That tells you something about his investment philosophy: he does not spend money on things that depreciate. He spends money on things that compound.

The speed of his decision-making was not recklessness. It was the product of preparation. He understood his borrowing capacity, his risk tolerance, and his target market before he walked into our office. When the right property appeared, he did not need a week to think about it. He needed three hours.

This is a pattern I see consistently in our most successful clients. They do not agonise over every imperfection. They understand that waiting for the "perfect" property means watching prices climb $5,000 per month in Melbourne's southeast corridor while you dither.

Mr Huang now has two Narre Warren properties with a combined land area exceeding 1,200 square metres. One generates $935 per week in dual rental income. The other has subdivision potential worth $120,000-$220,000 in equity creation. His combined out-of-pocket investment — deposits, stamp duty, and transaction costs — was roughly $400,000.

On paper, he has already generated more than $200,000 in equity appreciation and development upside. In less than twelve months.

We are now helping him source a third property — this time a commercial asset, diversifying his portfolio across asset classes. The man does not slow down. And the Narre Warren market does not wait for people who do.

"The best investors I work with share one trait: they are comfortable being uncomfortable. They know that the perfect property does not exist, and that a very good property bought today beats a perfect property bought in six months." — Joey Don, PremiumRea

Frequently asked questions

Should I buy a property with an existing granny flat or build one? Both work, but the economics differ. Buying a property with an existing granny flat typically adds a $20,000-$30,000 premium to the purchase price — significantly less than the $110,000-$160,000 cost of building new. However, existing granny flats may lack an Occupancy Certificate (OC), which is legally required for tenanting. Budget $2,000-$5,000 and 1-2 weeks to have a building surveyor issue a retrospective OC if needed.

How do I know if a corner block has subdivision potential? Three factors: zoning (General Residential Zone is ideal), lot size (minimum 500sqm for corner blocks in most Casey council areas), and existing easement locations (sewer lines through the middle of the lot kill subdivision). We check all of these during our due diligence before recommending any property.

What is the current timeline for subdivision approval in Casey? Council processing times vary, but 6-9 months is typical in the City of Casey as of mid-2025. Victoria's planning reforms have introduced fast-track pathways for compliant applications, potentially reducing this to 3-4 months for straightforward two-lot subdivisions.

References

  1. [1]CoreLogic, 'Narre Warren Suburb Profile — Median House Prices and Sales Activity', Q2 2025.
  2. [2]City of Casey, 'Planning Application Processing Times and Subdivision Guidelines', 2025.
  3. [3]Victorian Building Authority, 'Occupancy Certificates — Requirements and Retrospective Issuance', 2024.
  4. [4]PremiumRea case file: Mr Huang portfolio — two Narre Warren acquisitions, 2025.
  5. [5]REIV, 'Melbourne Southeast Quarterly Market Report', Q2 2025.
  6. [6]Victorian Planning Authority, 'Residential Subdivision Fast-Track Reforms', April 2025.
  7. [7]Domain, 'Narre Warren Rental Market Data — Vacancy Rates and Median Weekly Rent', July 2025.
  8. [8]PremiumRea granny flat construction data: 30sqm = $110K + GST, 60sqm = $160K + GST.

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.

case studyNarre Warrengranny flatcorner blocksubdivisionMelbourne southeast
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