Flat vs house: best rental yield in Belgium?
Detailed comparison of rental yield between flats and houses in Belgium. Purchase price, rents, charges, vacancy: all the data to make your choice.
- 01 Key figures
- 02 Gross yield compared
- 03 Impact of charges
- 04 Tenant profiles
- 05 Verdict
Flat or house: the numbers speak
The question comes up in every discussion among Belgian property investors: is it better to buy a flat or a house to let? Market data from Q4 2025 provide a clear answer, but the right choice depends on your strategy.
In Belgium, the average gross yield of a flat reaches 4.5%, compared with 3.7% for a house. This 0.8 percentage point gap is mainly explained by the purchase price / rent ratio, which is significantly more favourable for flats. But gross yield only tells part of the story.
Gross yield does not account for charges, property tax or maintenance. For a full calculation, see our complete rental yield calculation method.
Gross yield compared by property type
Here are the average gross yields observed in Belgium’s main cities:
| City | Flat (2 bed.) | House (3 bed.) | Gap |
|---|---|---|---|
| Charleroi | 6.1% | 4.8% | +1.3 pp |
| Liege | 5.2% | 4.2% | +1.0 pp |
| Namur | 4.8% | 3.9% | +0.9 pp |
| Antwerp | 4.3% | 3.6% | +0.7 pp |
| Ghent | 4.1% | 3.5% | +0.6 pp |
| Brussels | 3.8% | 3.2% | +0.6 pp |
The gap narrows in large cities where houses are scarce and highly sought-after. In Brussels, the shortage of family houses keeps rents high, partially offsetting the higher purchase price.
The impact of charges on net yield
Charges are where the difference becomes stark. A house generates on average 2,800 EUR more in annual charges than a flat:
- Roof and facade maintenance: 800 to 1,200 EUR/year (provision)
- Garden and outdoor areas: 400 to 600 EUR/year
- Property tax: generally 20 to 30% higher
- Home insurance: higher premium (larger surface area and risks)
Conversely, flats bear co-ownership charges (1,200 to 2,400 EUR/year depending on the building), which narrows the gap. In net terms, flats retain an advantage of 0.4 to 0.6 percentage points depending on the city.
A well-drafted lease allows you to clearly allocate charges between landlord and tenant, regardless of property type.
In Wallonia, property tax on a house can reach 2,000 EUR/year for a property worth 250,000 EUR. Factor this cost into your simulation before investing.
Tenant profiles make the difference
Beyond the numbers, the type of tenant directly impacts real profitability:
Flat: high turnover (18-24 months on average), diverse tenants (students, young professionals, couples). Each tenant change generates costs: refurbishment, vacancy period, listing fees. Average vacancy reaches 4%.
House: stable tenants (families, couples with children), leases of 3 to 5 years. Vacancy drops to 2.5%. Fewer turnover costs, but potentially more expensive repairs (boiler, roof, garden).
Investors who prioritise peace of mind will find houses less time-consuming to manage. Those targeting maximum yield with structured rental management will opt for flats.
Verdict: flat for yield, house for stability
The choice between flat and house depends on your investor profile:
- Maximum yield: the 2-bedroom flat remains the best compromise. Higher gross yield, strong rental demand, more accessible entry ticket. Ideal for shared housing to maximise rents.
- Stability and peace of mind: houses attract reliable tenants, reduce turnover and offer higher capital gains on resale. The lower yield is offset by reduced management costs.
- Long-term wealth building: houses generally appreciate more than flats, especially in mid-sized cities where land is becoming scarce.
In all cases, the key remains a solid lease agreement and rigorous charge management. See our ranking of the most profitable cities to refine your geographic choice.
Comparison based on average purchase prices and average rents for flats (1-3 bedrooms) and houses (2-4 bedrooms) in the 12 main Belgian cities. Sources: Statbel and Immoweb Q4 2025. Charges include property tax, routine maintenance and co-ownership fees (flats only).
Frequently asked questions
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In terms of gross yield, yes. A flat offers an average gross yield of 4.5% compared with 3.7% for a house. However, houses have lower vacancy rates and higher potential capital gains on resale.
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A house generates roughly 40% more charges: garden maintenance, roof, facade, no shared co-ownership charges. Property tax is also generally higher for a house.
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Houses attract more stable tenants (families, settled couples) with longer leases (3-5 years on average vs 18-24 months for a flat). The lower turnover partly offsets the yield gap.
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