In Belgium

Vacancy (vacance locative) is one of the main risks for property investors. Every month without a tenant means lost rental income while fixed costs (mortgage, property tax, insurance) continue.

In the Belgian market, typical vacancy periods vary by location and property type:

  • Brussels and large cities: 2 to 4 weeks average between tenants
  • University towns: very low vacancy for studios and small apartments (high demand)
  • Secondary cities: 1 to 2 months average
  • Rural areas: 2 to 4 months, sometimes longer

How it works

Causes of vacancy. Tenant departure (end of lease, notice), time needed for renovation between tenants, seasonal variations (less demand in winter), overpriced rent, unattractive property.

Cost of vacancy. On a 800 EUR/month rent, 1 month of vacancy = 800 EUR lost. Over a year, this represents 8.3% of potential income — enough to wipe out the difference between a good and mediocre yield.

Mitigation strategies. Competitive pricing, good property condition, quick turnaround between tenants, EPC compliance, online listing on multiple platforms.

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Good to know
Prudent investors budget for 1 month of vacancy per year (8.3% provision) when calculating net yield. This provides a realistic baseline even if actual vacancy is lower.

Practical example

Isabelle owns an apartment in Louvain-la-Neuve. Her tenant leaves in July. The apartment is repainted in 1 week and relisted immediately. A new tenant signs in August. Vacancy: 1 month = 750 EUR lost. In contrast, her apartment in a rural village remains vacant for 3 months after the tenant’s departure, costing 1,950 EUR.