A valuation is only as good as the information behind it. Owners who prepare the visit get a more precise figure, a report that stands up to a bank, a notary or the tax office — and they save time.
This checklist covers what to gather before the appointment and what happens on site.
Documents to prepare
Legal and cadastral documents
- The notarial deed of your purchase (acte notarié), or the inheritance documents
- A recent cadastral extract and plan
- For apartments: the co-ownership rules (règlement de copropriété) and the état descriptif de division, which define your lots and shares (millièmes)
- Any servitudes, emphyteutic lease (emphytéose) or building-right contract
Technical documents
- The energy performance certificate (passeport énergétique) — it has a measurable impact on value
- Plans of the property, ideally with surfaces
- The building permit and, where relevant, permits for later extensions or conversions
- For houses: information on heating, roof, windows and insulation (age, type)
Renovation history
- Invoices for significant works of the last 10–15 years: kitchen, bathrooms, heating system, windows, roof, insulation, solar panels
- Anything that is not visible — new wiring, a replaced roof underlay, drainage — only counts if it is documented
For apartments
- The last three years of co-ownership accounts and charges
- Minutes of the latest general meetings, especially decisions on upcoming works
- The amount of the reserve fund, if any
For rented properties
- The lease (start date, rent, indexation, deposit)
- Details of charges paid by the tenant
Surfaces: the most frequent source of error
Advertised surfaces in Luxembourg are often inconsistent — some include balconies, cellars or areas under sloping ceilings, others do not. A valuer will measure or check the living area using a consistent method and treat annexes (terraces, cellars, attics, garages) separately.
If you have a surface certificate from an architect or surveyor, have it ready.
What the valuer looks at on site
- Location and environment: street, orientation, noise, views, proximity to transport and schools
- Layout: number and size of rooms, light, storage, practicality
- Condition: finishes, kitchen and bathrooms, visible defects, humidity, cracks
- Technical installations: heating type and age, ventilation, electrical panel
- Outdoor areas and annexes: garden, terrace, balcony, garage, parking spaces, cellar
- Common parts for apartments: entrance, staircase, lift, façade, roof
Expect the visit to last between 45 minutes and a little over an hour, depending on the size of the property.
Small things that help
- Give access to every room, including the cellar, attic and garage.
- Point out improvements the valuer might not see: new underfloor heating, a recent roof, triple glazing.
- Be open about defects. A known issue documented in the report protects you later, especially in a sale or a divorce.
- Tidying helps the photos, but a valuation is not a viewing — no need for staging.
Why preparation matters for the result
A valuation must be justified. Every document you provide allows the valuer to replace an assumption with a fact. That makes the figure more reliable — and harder to challenge by a bank, a buyer, a co-heir or the Administration de l'enregistrement.
Ready to schedule a visit? Request a no-obligation quote — you can also propose a preferred date and time directly in the form.