Investment property expertise in Brussels

Certified expertise of your investment property in Brussels

An investment property — the flagship real estate investment on the Brussels market — is characterised by its multiple letting units and the generation of recurring income. Its valuation requires a dual competence: mastery of income-based valuation methods (capitalisation, discounted cash flows) and knowledge of the Brussels rental market. Unlike an investment property appraisal that provides an indicative range, a certified expertise produces an enforceable report before courts, the tax authority and banks.

Our firm regularly appraises multi-unit residential buildings across all 19 Brussels communes.

The specificities of investment property in Brussels

Brussels typologies

The Brussels investment property stock is diverse:

• Converted town houses: Former bourgeois houses converted into 2 to 6 apartments. Very common in the south-eastern communes (Ixelles, Saint-Gilles, Schaerbeek). Architectural character but frequent compliance works required.
• Purpose-built rental buildings: Structures designed from the outset as rental buildings, with 4 to 20+ units. Construction from the 1950s–1980s, often with standardised floor plans.
• New or recently renovated buildings: Recent development projects, compliant with current EPC standards, with lift and underground parking.
• Mixed-use buildings: Combining residential units on upper floors with commercial premises at ground level. Differentiated risk and yield profile by occupation type.

Rental framework

In Brussels, residential tenancy is governed by the Brussels Housing Code. The expert must verify the compliance of each letting unit with Brussels habitability and safety standards (decree of the Brussels-Capital Region Government setting the basic safety, habitability and equipment requirements for dwellings). A non-compliant dwelling presents a legal and rental risk that affects value.

Valuation methodology

The valuation of an investment property draws principally on two methods:

Income capitalisation method

• Potential gross income: Sum of the theoretical rents for all units, at full occupancy and at market conditions.
• Vacancy allowance: Deduction for the rental vacancy risk, estimated based on the location and quality of the property.
• Non-recoverable charges: Management fees, insurance, routine maintenance, provisions for major repairs, property withholding tax.
• Net income: Effective gross income less non-recoverable charges.
• Capitalisation rate: Determined by the market (generally between 4% and 7% gross in Brussels depending on location and condition).
• Fair market value: Net income divided by the capitalisation rate.

Direct comparison method

Analysis of recent transactions involving comparable investment properties in the same district or an equivalent district. Adjustments relate to the number of units, condition, profitability and enhancement potential.

DCF (Discounted Cash Flow) method

For larger buildings or institutional investors, the expert may apply the discounted cash flow method, incorporating revenue projections, planned works and the terminal value.

Content of the report

• Rental schedule: Summary table of units (type, area, current rent, market rent, lease term, occupancy status).
• Technical description: Structure, roof, facades, common parts, technical installations.
• Income analysis: Gross and net yield, vacancy rate, potential for rent revaluation.
• Market analysis: Comparable transactions, district yield rates, trends.
• Reasoned fair market value: With cross-referencing of methods and justification of the capitalisation rate retained.

How the mission works

1. Contact: Description of the building, transmission of the rental schedule. Quote within 24 hours.
2. Inspection: Inspection of common parts and a representative sample of private lots (2 to 4 hours depending on size).
3. Analysis: Processing of rental data, market research, yield calculations.
4. Report: Delivered within 10 to 15 working days.

For further reading, consult our guide on buy-to-let investment in Brussels and the value of an investment property. Find all our expertises, our fees or book an appointment.