EPC and property value: impact on price
What impact does the EPC score have on the value and sale price of a rental property?
The correlation between EPC and property value
The EPC score has become a major property valuation criterion in Belgium. Recent studies show a clear correlation between energy performance and price per sqm, both for sale and for letting.
This trend accelerated from 2022 with the rise in energy prices and the introduction of minimum scores for letting. A poorly rated property is perceived as a risk: mandatory future works, potential letting ban, high charges.
The Belgian property market now factors in the EPC as a negotiation element as important as location or floor area. Investor buyers calculate the cost of bringing the property into compliance and deduct it from their offer.
Impact of EPC on the sale price
| EPC score | Impact on price (vs average) | Average time to sell |
|---|---|---|
| A - B | +15 to +20 % | 2 - 3 months |
| C | +5 to +10 % | 3 - 4 months |
| D | Reference (0 %) | 4 - 5 months |
| E | -5 to -10 % | 5 - 7 months |
| F | -10 to -20 % | 6 - 9 months |
| G | -15 to -25 % | 8 - 12 months |
The gap is more pronounced in Brussels (strictest timeline) than in Wallonia or Flanders.
Impact of EPC on rent
The EPC influences rent in three ways:
1. Rent amount at letting. A better-rated property justifies a higher rent. Tenants compare total cost (rent + charges) and favour energy-efficient properties.
2. The right to indexation. Poorly rated properties can no longer be indexed. Over a 9-year lease, the shortfall is considerable.
3. Vacancy. An efficient property lets faster. Each month of vacancy represents a net rent loss.
Profitability of energy renovation
| Scenario | Investment | Annual gain | ROI (without grants) | ROI (with grants) |
|---|---|---|---|---|
| F to D (roof + glazing) | EUR 18,000 | EUR 2,400 | 7.5 years | 4 - 5 years |
| E to C (roof + walls + heating) | EUR 35,000 | EUR 3,600 | 10 years | 6 - 7 years |
| G to D (major renovation) | EUR 50,000 | EUR 4,800 | 10.5 years | 6 - 8 years |
The annual gain includes: rent increase, charge savings (attractiveness), indexation recovery and vacancy reduction.
Regional grants (Renolution, Habitation, Mijn VerbouwPremie) significantly reduce the ROI. Combined with federal tax deductions, they make energy renovation highly profitable in the medium term.
Strategy for the landlord
The EPC is no longer just an administrative document. It is a value lever that directly impacts your rental yield.
Existing properties: assess the cost of works needed to reach at least a D score (the comfort threshold that protects you from bans until 2035-2036 depending on the region). Prioritise high-impact EPC works.
Investment purchase: factor the cost of EPC compliance into your profitability calculation. An F-rated property at a reduced price can be an excellent deal if works are well planned and financed.
Multi-property portfolio: rank your properties by EPC urgency and plan works over several years. A rental management software centralises certificates, deadlines and renovation expenses for each property.