Realo valuation: how reliable is that automated estimate?

A Realo valuation gives you a price indication for your home within seconds, calculated from public data and sales in your neighbourhood. A useful starting point, but it remains a calculation made without anyone having seen the inside of your home. Below you will read how such an automated valuation is produced, where it is reliable, where it deviates, and how to combine it with an on-site valuation before you settle on your asking price.

What exactly is a Realo valuation?

Realo is a Belgian property platform that offers listings as well as data on homes and neighbourhoods. Its valuation function runs on an automated valuation model, known in the sector as an AVM. Such a model compares your address with data it already holds: registered sale prices, asking prices of comparable properties, the year of construction, the surface area, the property type and statistics on the street and the municipality.

You fill in a limited number of characteristics yourself and then receive an amount or a price range. No visit is involved and there is no report you can submit to a notary or to the tax authorities. Other parties offer a comparable service, from banks to property portals. The underlying logic is always the same: statistics applied to your address. That makes the outcome free and fast, but also generic.

How reliable is such an automated valuation?

Reliability depends above all on how ordinary your home is. If your terraced house sits in a district where ten comparable properties were sold over the past year, the model has plenty of reference points and the outcome usually points in the right direction. If you live in a converted farmhouse, a loft, a home with a large garden or a property in a municipality with few transactions, it becomes guesswork. The model then fills in the missing information with averages, and averages say little about your specific home.

There is something else at play. Public price data lags behind the market. Statbel publishes median prices per municipality with a delay of months or longer, and registered deeds likewise reflect the picture of several months ago. In a market that moves, as the Belgian market has done in recent years, you are therefore looking partly at the past. Treat the figure as a range, not as a price tag.

What an algorithm does not see in your home

Two homes with the same surface area in the same street can differ by tens of thousands of euros. Those are precisely the differences an automated model misses. Consider:

• the condition of the interior, the joinery, the roof and the technical installations
• the EPC label and the renovation work a buyer still has to factor in
• the layout, the daylight and the orientation of the garden or terrace
• noise nuisance, a busy through road or, on the contrary, a quiet side street
• town planning information, permits and any breaches of the rules
• the finish of the kitchen and the bathroom, often decisive for the buyer

Since the EPC obligations in Flanders were tightened, the energy label also weighs more heavily in what a buyer is willing to pay. A home with an F label is viewed differently from a similar home with a B label, even if the square metres are identical. An automated valuation that does not know your label misses that entirely.

A Realo valuation or a valuation by an estate agent?

The difference lies in the reasoning behind the figure. An online valuation starts from data and ends at an amount. An estate agent who comes to your home starts from the property itself and ends at a pricing strategy: an asking price, an expected selling period, an assessment of the likely buyers and advice on what you would do well to touch up before the photos are taken. That agent also has sight of what has actually sold in your street in recent weeks, including the bids that determined the final price. That figure appears in no public database.

There is a third form. For an inheritance, a divorce or a gift you need an official valuation report from a sworn valuer or a chartered surveyor. That is paid for and serves a legal purpose. For an ordinary sale you do not need such a report. So first request a free valuation of your home and only then decide whether an official report makes sense.

How to use an online valuation wisely

Use the result as a check, not as a decision. In practice: obtain your online indication first, then have two or three estate agents look at your home, and set the figures side by side. If one agent deviates sharply on the high side, ask what they are basing that on. An asking price that is too high is the classic reason a home lingers for months and then sells anyway at a discount. If someone deviates sharply on the low side, ask which defects they see that you had not counted in yourself.

Compare the commission, the marketing approach and the selling period each agent proposes at the same time. Through ImmoMakelaarVergelijker.be, the independent Belgian comparison platform, you compare up to 3 BIV-recognised estate agents from your own municipality, free and without obligation. You choose who you go ahead with and you are under no commitment.

Your next step

A Realo valuation is useful for getting a first feel for the value of your home, certainly in a neighbourhood with many comparable sales. It does not replace an on-site visit and it takes no account of the condition, the EPC label or the layout of your home. Anyone selling would therefore do well to set the online indication alongside the advice of agents who know your street. That way you start with an asking price that holds up instead of a figure based on an average. Compare estate agents in your municipality here, without obligation, and set their price advice next to your online valuation.