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    methodeAugust 12, 2026

    Property valuation in Luxembourg: how to get a reliable opinion of value

    Signed Michael EiresPublished August 12, 2026· Updated August 24, 2026· 5 min
    Property valuation in Luxembourg: how to get a reliable opinion of value
    Property valuation in Luxembourg: how to get a reliable opinion of value
    — Lecture —

    ( In short )

    A reliable property valuation in Luxembourg cross-references comparable notarial transactions, the property's real condition and the neighbourhood's dynamics — never the asking price shown on portals alone. EIRES Real Estate delivers a written, substantiated opinion of value within 2 minutes, free and without obligation, with an optional visit to refine the reading.

    ( Key takeaways )

    1. 01The price shown on a portal is an asking price, not a market price: only notarial transactions actually signed carry real evidentiary weight.
    2. 02A serious valuation cross-references three readings: recent comparables in the neighbourhood, the property's real condition (finishes, exposure, works) and the area's 12-month dynamic.
    3. 03EIRES Real Estate refuses to inflate a price to win a mandate: if a seller's target price is unrealistic, the client is told honestly before any mandate is signed.
    4. 04EIRES's online valuation is free, without obligation, and delivered within 2 minutes; an optional visit with a senior advisor refines the reading for atypical properties.
    5. 05A commercial valuation does not carry the same legal weight as a court or notarial expert appraisal — useful for selling or buying, it does not replace a sworn appraisal where the law requires one (inheritance, divorce).

    The listed price is not the market price

    On property portals, every listing shows a price set by the seller or the agency — an asking price, negotiable, sometimes optimistic. The price that actually matters is the one signed before a notary: that data point, and only that one, constitutes an actual market transaction. In Luxembourg, where land is scarce and premium districts can be counted on one hand, the gap between listed and signed price can run either way depending on how tight the segment is.

    Valuing a property seriously therefore starts from transactions actually completed in the neighbourhood — not from competing listings still online, whose eventual sale price, if any, remains unknown.

    What builds a reliable opinion of value

    A serious valuation cross-references three readings. First, comparables: recent notarial transactions on similar properties (type, surface, district), weighted by how genuinely comparable they are to the property being valued. Second, the property's own condition — year built, quality of finishes, works done or needed, exposure, view, floor, presence of outdoor space. Two apartments that look identical on paper can differ by 10 to 15% in price on these criteria alone. Third, the neighbourhood's dynamic over the past twelve months: a tightening market calls for a different read than a stabilising one.

    None of these three readings suffices alone. An algorithm that only knows surface area and postcode will always produce a wide range; it is the cross-check against a human reading of the property that narrows the estimate.

    How a valuation with EIRES Real Estate works

    The process runs in four steps. You first describe your property via the online form — type, surface area, location, condition, features. We then automatically cross-reference these elements with recent comparable transactions in the neighbourhood and our own proprietary market data, built mandate after mandate since 2019. You receive a written opinion of value within 2 minutes, every figure justified — never a single number pulled from nowhere. To go further, a senior advisor can then visit by appointment to refine the reading on site: view, exposure, the actual quality of finishes — details no form fully captures.

    Honesty in the figure, above all

    An agency that quotes the highest price to win a mandate rarely does its client a favour: the property stays listed too long, picks up a stigma discount, and ultimately sells for less than it would have with a realistic price from the start. At EIRES Real Estate, if a seller's target price looks too optimistic against the comparables, we say so before any mandate is signed. The valuation carries no obligation: it is a decision-making tool, not a sales pitch.

    What a commercial valuation does not replace

    An opinion of value, however substantiated, remains a commercial tool — useful for setting a realistic asking price, framing a negotiation, or informing a purchase decision. It does not replace a sworn court or notarial appraisal, required in certain precise legal contexts: inheritance, contested co-ownership, divorce. In those cases, only an expert appointed by the court or the notary carries professional responsibility for the figure retained.

    Getting your valuation

    Whether you are considering a sale in the coming months or simply want to place your property on today's market, EIRES Real Estate's online valuation is free, without obligation, and delivered within 2 minutes. If your property calls for a finer reading — unusual architecture, a complex plot, exceptional finishes — a senior advisor takes over by appointment.

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    ( Frequent questions )

    How much does a property valuation with EIRES Real Estate cost?

    Nothing. The online valuation is entirely free and without obligation, for any residential property in the Grand Duchy. You receive a written opinion of value within 2 minutes.

    What is the difference between the online valuation and an on-site visit?

    The online valuation cross-references what you declare (type, surface area, location, condition) with neighbourhood comparables. For atypical properties (unusual architecture, rare finishes, complex plot), a senior advisor can visit by appointment to refine the reading — view, exposure, actual quality of finishes.

    Does a property valuation carry legal weight for a bank or a notary?

    No, not in the same way as a court or sworn appraisal. Our opinion of value is a substantiated commercial tool, useful for setting a realistic asking price or framing an offer. For inheritance, divorce, or any context where the law requires an appraisal, a court-appointed expert remains necessary.

    Do I have to sign a mandate after receiving my valuation?

    No obligation at all. The valuation is a starting point, not a commitment. If the price a seller has in mind seems unrealistic, we say so upfront — we would rather have a well-informed seller than a poorly framed mandate.

    Which areas do you cover for valuations?

    The entire Grand Duchy, with in-depth expertise in Luxembourg City (Belair, Limpertsberg, Kirchberg, Merl, Cents, Bonnevoie, Gare), as well as Strassen, Bertrange, Hesperange, Walferdange and the communes of the Canton of Luxembourg.

    Why doesn't the price shown on portals reflect the real market?

    A portal price is an asking price set by the seller or agency, before negotiation. Only the price actually signed before a notary — sometimes lower, occasionally higher under pressure — is reliable market data. It is this notarial data we use to build an opinion of value.

    ( Sources )

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