EPC information and frequently asked questions.
The original EPC explanations remain, expanded with rent indexation and the new service scope.
How long is an EPC valid
An EPC is generally valid for 10 years, unless a new certificate replaces it after works or the specific rule requires an update.
What does the EPC label mean
The label runs from A+ to F and helps compare energy performance between homes.
Does rent indexation depend on EPC
Yes. In Flanders, full indexation without correction factors is tied to favourable EPC labels A+, A, B or C.
Can you arrange other inspections
Yes. EPC Lochristi coordinates electrical inspections, asbestos certificates, valuations and rent-indexation support through its network.
What if the owner doesn't know whether an EPC exists
You can check with VEKA (the Flemish Energy and Climate Agency) by providing proof of ownership; VEKA will issue an unsigned copy and confirm which expert drew up the original certificate.
Does the government check EPC certificates
Yes. VEKA carries out random checks on both the presence and the accuracy of EPC certificates.
What happens if no EPC is available
Report it to VEKA. An EPC has been mandatory for new rental contracts since 2009 and for property sales since 1 September 2008.
Do student rooms need an EPC
A student room needs its own EPC only if it has an independent kitchenette, shower or bath, toilet and a lockable entrance; rooms without that independence fall under the building's collective EPC.
Why does actual energy use differ from the EPC estimate
The EPC uses standardised consumption and climate data so certificates can be compared fairly - it isn't a prediction of any one household's actual bill.
Energy context
EPC labels, insulation and glazing stay the core of the energy story.
How to prepare for the mandatory site visit.
Every EPC requires a type A energy expert to come to the property in person. The assessment may only be based on written evidence and on what is visually verifiable — information from statements cannot be used. Anything you cannot prove is calculated as absent, and that costs points on your label.
Which documents should you have ready?
- Invoices for insulation work, new glazing, a boiler or solar panels, stating brand, type and thickness.
- Photos of insulation that is now hidden, taken while the work was being carried out.
- Signed specifications, or specifications together with the contracting agreement.
- Plans signed by the architect for the planning or environmental permit.
- Technical data sheets, accompanied by the matching invoice.
Two points to watch: every document should state the address of the property, so the link with your home is beyond dispute. And a quotation on its own is not enough — an invoice or an on-site observation has to show that the work was actually carried out.
The expert does not carry out destructive research: he will not drill into your walls or ceilings. If you suspect insulation that is no longer visible and have no paperwork for it, you may make a small inspection opening yourself before the visit. In VEKA's own example, a small hole in the ceiling proved 15 cm of mineral wool — label C instead of label F.
Where to find the year of construction
When nothing can be proven, the software falls back on assumptions based on the building practice of that period. The year of construction is therefore an important parameter for your score. EPC Lochristi helps verify public and notarial sources; you mainly prepare proof that only you already have.
- Your Woningpas (Flemish housing passport)
- The property tax assessment (onroerende voorheffing)
- Planning permits, plans, notarial documents or cadastral details that we can help request
- Invoices, technical sheets, photos or existing certificates you already hold