Real Case Study: From a €180,000 Purchase to a 6.4% Net Annual Return
In real estate, most investors do not fail because they choose the wrong area. They fail because they measure the wrong things. As we have already explained in “Why Net Yield Is the Only Number That Really Matters”, an investment is not judged by headline rent, nor by aesthetics, but by what remains after all costs — and whether that result holds under pressure. This article presents a fully realistic residential investment case in Greece, analyzed the way professionals do it before committing capital.
REAL ESTATE INVESTMENT
Christos Boubalos - poli.gr
1/21/2026

1. The Property: Chosen by Filter, Not by Price
Type: Apartment, 78 sqm
Year of construction: 2001
Floor: 2nd
Condition: Good, not renovated
Strategy: Long-term rental (not short-term)
Location: Urban micro-location with stable rental demand
The property was not selected because it “looked cheap.”
As outlined in “How Professionals Filter Properties Before Looking at Price”, price is evaluated last, not first.
2. Total Acquisition Cost (All-In Capital)
One of the most common investor mistakes — analyzed in “The 5 Risks No Listing Ever Shows” — is ignoring the true invested capital.
ItemAmount (€)
Purchase price 180,000
Transfer tax (3%) 5,400
Notary & legal costs 3,200
Brokerage fee 3,600
Light refurbishment 7,800
Total invested capital 200,000
This is the capital that must perform.
Not the listing price.
3. Rental Income: Conservative by Design
Market rent: €900 / month
Theoretical annual income: €10,800
However, as discussed in “The Trap of High-Yield Real Estate”, ignoring vacancy is how most projections collapse.
Assumption: 1 vacant month per year
➡️ Effective annual income: €9,900
4. Annual Operating Costs
Expense Amount
(€)Rental income tax 1,980
Property tax (ENFIA) 420
Maintenance & wear 600
Management / contingencies 300
Total annual costs 3,300
5. Net Annual Cash Flow
Effective income: €9,900
Total costs: €3,300
Net cash flow: €6,600 per year
6. Net Yield: The First Layer of Truth
6,600200,000=3.3%\frac{6,600}{200,000} = 3.3\%200,0006,600=3.3%
At this point, many investors hesitate.
But as explained in “Why Real Estate Is a Long-Term Strategy — Not a Trade”, net yield alone never tells the full story.
7. Capital Appreciation: Not Luck, but Structure
Assuming a conservative annual appreciation of 2.5%:
HorizonEstimated Value
(€)Purchase 180,000
5 years~203,000
10 years~231,000
➡️ Estimated 10-year appreciation: ~€51,000
As shown in:
capital appreciation is earned, not assumed.
8. Total 10-Year Performance (Income + Value)
SourceAmount (€)Net rental income (10 years)66,000Capital appreciation51,000Total return117,000
➡️ Total 10-year return: 58.5%
➡️ Equivalent annualized return: ~6.4%
This is precisely why, as analyzed in “Why Real Estate Still Outperforms Bank Deposits”, the comparison should never be made on interest rates alone.
9. Stress Test: Before Buying, Not After
As explained in “How Professionals Stress-Test a Real Estate Portfolio”, every serious investment must survive downside scenarios:
Rent –10% → ~5.6% annualized return
Two vacant years over a decade → ~5.9%
Zero appreciation → ~3.3% (income-only)
The investment remains structurally sound, even under pressure.
10. What This Case Study Actually Shows
This is not a “home run” investment
It is not fast money
It is predictable, controllable, and resilient
Exactly the type of asset discussed in:
The Role of Poli Real Estate
At Poli Real Estate, every property is evaluated first as an investment scenario, and only second as a transaction.
We do not focus on what looks attractive.
We focus on what:
survives numerical scrutiny
passes stress tests
makes sense over an entire market cycle
In many cases, the correct advice to an investor is not to buy, but to walk away from the wrong asset.
If you are interested in data-driven investment opportunities, share your investment brief at the contact button that follows.
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