A valuation has no fixed legal validity period. It reflects the market on the day it is made and then drifts as the market moves. A sensible rule is to refresh it every 6 to 12 months, and sooner after sharp price moves like the 2025 Walloon rises or after renovation work.
It is a common misconception that a valuation comes with an expiry date stamped on it. It does not. A valuation is a snapshot of what the market would likely pay on a given day, given the property’s condition and the comparable sales available then. There is no rule that makes it “valid” for six months or a year; what changes is how well it still matches reality as time passes.
Two forces age a valuation. The first is the market. In a flat market a figure can hold for a good while; in a moving one it dates quickly. Wallonia has just lived through a sharp move, with the median house up 15.4% in 2025 to 240,000 euros and apartments up 7.2% (source: Notaire.be / Fednot, February 2026). A figure set before that surge understates today’s value. The second force is the property itself: a renovation, a new roof or an improved PEB rating changes the number regardless of the market.
The counter-intuitive lesson is that a valuation can be “wrong” the week after it is made, not because the agent erred but because the market moved. That is why a refresh every 6 to 12 months is prudent, and why you should revalue before listing if your last figure is more than a year old.
If you are selling now, ask for a current valuation rather than relying on an older one. It costs nothing at Easyhome and protects you from pricing to a market that no longer exists.
At a glance
| Aspect | Reality |
|---|---|
| Legal validity period | None, a valuation is not “valid” for a set term |
| What it reflects | The market on the day it is made |
| Why it ages | Prices move; the property changes |
| 2025 Walloon context | Median house up 15.4%, apartments up 7.2% |
| Suggested refresh | Every 6 to 12 months |
| Refresh sooner if | Sharp price moves or after renovation |