Comparing two rents seems simple until you look at the flats themselves. A lower monthly figure may correspond to a much smaller home. Conversely, a lower price per square metre does not guarantee the lowest monthly bill. The latest summary from the Housing Observatory, covering listings from 2025 in the functional area of Luxembourg, highlights precisely this difficulty.
A clear gap, very different markets
Published on 30 September 2026 as part of the DIALOG project, the press release gives a median advertised rent of 33 euros per square metre in Luxembourg, compared with 12 euros in Northern Lorraine and around 10 euros in Wallonia, Saarland and Rhineland-Palatinate. These are flats advertised for rent, not a snapshot of all existing tenancies.
A median divides a set of figures into two halves: half the values are below it and the other half above. It does not mean that all flats are advertised at this price, or that a particular property should automatically be priced accordingly.
| Territory | Median advertised rent per m² | Listing period |
|---|---|---|
| Luxembourg | 33 € | 2025 |
| Northern Lorraine | 12 € | 2025 |
| Wallonia | Around 10 € | 2025 |
| Saarland | Around 10 € | 2025 |
| Rhineland-Palatinate | Around 10 € | 2025 |
Table source: summary by the Housing Observatory, published on 30 September 2026. These figures describe the observed supply and are not a personalised estimate.
Floor area changes the ranking
The median floor area of advertised flats is 59 m² in Northern Lorraine, compared with 89 m² in Wallonia. The press release therefore reports advertised monthly rents per property of 680 euros in Northern Lorraine, 850 euros in south-eastern Wallonia and 750 euros in western Saarland and Rhineland-Palatinate.
Take care with the geographical areas: Wallonia as a whole and its south-east are not interchangeable. Nor should a median floor area be mechanically multiplied by a median price per square metre. These two indicators describe distributions; their product does not necessarily give the median monthly rent.
The number of bedrooms provides yet another piece of information. According to the summary, flats with three or more bedrooms make up a smaller share of listings in Northern Lorraine, Wallonia and Luxembourg than in Saarland and Rhineland-Palatinate. A larger home, then, does not always meet the same family’s needs.
2025 figures published in 2026
The date a study is published is not the date of its observations. These results relate to listings from 2025. They do not guarantee that a comparable flat is available at this price on 1 October 2026. Nor do they say what amount was eventually negotiated or agreed.
Making your own comparison
For a household deciding between several municipalities, our recommended approach is to start with genuinely comparable homes: the same number of bedrooms, a similar condition and a journey that works with day-to-day life. You can then distinguish between the advertised rent, the stated service charges and any other expenses to check with the advertiser.
Journey time deserves its own column. It is not the same as a price per square metre and depends on where you work, your hours and connections. A regional indicator helps you understand a market; it does not replace an assessment of a property and its surroundings.
Above all, this study tells the story of a diverse residential Greater Region. Borders divide markets, but the size and composition of the housing supply also explain why two flat searches can produce very different results.
Sources
- Housing Observatory: DIALOG project summary on rents advertised in 2025.
- Photograph by Cedric Letsch and Unsplash licence.
Source consulted on 1 October 2026. The figures used here come from the official summary; this article does not claim to reproduce an expert analysis of the dataset or a property valuation.
