Property prices in Mertzig (2026)

How to read these numbers

These are asking prices, not final sale prices. The Observatoire compiles its statistics from property listings published over the previous 12 months. An asking price is what the seller or landlord requests when the property goes on the market, before any negotiation. Final transaction prices are usually a few percent lower, especially in a slower market.

Averages depend on what was actually for sale. A commune where mostly large new-build apartments were listed will show a higher average than one where small older flats dominated, even if the underlying market is similar. The price per square metre corrects for size but not for condition, age or location within the commune.

Small communes are sometimes blank. When too few listings were published in a commune during the period, the Observatoire masks the figure to keep it statistically meaningful. We show "too few listings" rather than inventing a number.

The 12-month window moves every quarter. Each update drops the oldest quarter and adds the newest one, so a figure can move even if prices themselves barely changed.